Using carbon felt, polytetrafluoroethylene latex and powder catalyst to assembly a light energy conversion device, the photocatalytic activity of catalyst 2.0%WO3-TiO2 （2%WO3 compounding TiO2） with oxygen vacancies ...Using carbon felt, polytetrafluoroethylene latex and powder catalyst to assembly a light energy conversion device, the photocatalytic activity of catalyst 2.0%WO3-TiO2 （2%WO3 compounding TiO2） with oxygen vacancies was studied through the water splitting for O2 evolution, using a high pressure mercury lamp as the light source and Fe^3＋ as the electron acceptor in two different devices： an ordinary photolysis device with catalyst powder suspending through a magnetic stirrer and a self-assembly light energy conversion device. The results show that after 12 h irradiation, the photocatalytic activity of 2.0%WO3-TiO2 with oxygen vacancies in the self-assembly light energy conversion device is higher than that of the ordinary photolysis device, and the amount of oxygen evolution is about 12 and 9 mmol/L respectively in these two devices. After 12 h, the rates of 02 evolution are slow in each device and the photocatalyst almost loses the photoactivity in the ordinary photolysis device. So, compared with the ordinary photocatalytic device, the rate of oxygen evolution and the life time of the catalyst are improved in the self-assembly light energy conversion device.展开更多
This review provides a comprehensive overview of the progress in light-material interactions(LMIs),focusing on lasers and flash lights for energy conversion and storage applications.We discuss intricate LMI parameters...This review provides a comprehensive overview of the progress in light-material interactions(LMIs),focusing on lasers and flash lights for energy conversion and storage applications.We discuss intricate LMI parameters such as light sources,interaction time,and fluence to elucidate their importance in material processing.In addition,this study covers various light-induced photothermal and photochemical processes ranging from melting,crystallization,and ablation to doping and synthesis,which are essential for developing energy materials and devices.Finally,we present extensive energy conversion and storage applications demonstrated by LMI technologies,including energy harvesters,sensors,capacitors,and batteries.Despite the several challenges associated with LMIs,such as complex mechanisms,and high-degrees of freedom,we believe that substantial contributions and potential for the commercialization of future energy systems can be achieved by advancing optical technologies through comprehensive academic research and multidisciplinary collaborations.展开更多
Solid oxide fuel cell(SOFC)is a promising energy conversion device because of its high efficiency and fuel/oxidant flexibility,enabling the direct conversion of chemical energy to electrical power.By using N_(2)O as a...Solid oxide fuel cell(SOFC)is a promising energy conversion device because of its high efficiency and fuel/oxidant flexibility,enabling the direct conversion of chemical energy to electrical power.By using N_(2)O as an oxidant instead of air,we develop a dual-phase catalyst La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3-δ)-Gd_(0.1)Ce_(0.9)O_(2-δ)(LSCF-GDC),which exhibits efficient bifunctionality as a cathode for SOFC,synergistic ally promoting simultaneous N_(2)O decomposition and oxygen reduction kinetics.展开更多
Advanced electromagnetic devices,as the pillars of the intelligent age,are setting off a grand transformation,redefining the structure of society to present pluralism and diversity.However,the bombardment of electroma...Advanced electromagnetic devices,as the pillars of the intelligent age,are setting off a grand transformation,redefining the structure of society to present pluralism and diversity.However,the bombardment of electromagnetic radiation on society is also increasingly serious along with the growing popularity of"Big Data".Herein,drawing wisdom and inspiration from nature,an eco-mimetic nanoarchitecture is constructed for the first time,highly integrating the advantages of multiple components and structures to exhibit excellent electromagnetic response.Its electromagnetic properties and internal energy conversion can be flexibly regulated by tailoring microstructure with oxidative molecular layer deposition(oMLD),providing a new cognition to frequency-selective microwave absorption.The optimal reflection loss reaches≈−58 dB,and the absorption frequency can be shifted from high frequency to low frequency by increasing the number of oMLD cycles.Meanwhile,a novel electromagnetic absorption surface is designed to enable ultra-wideband absorption,covering almost the entire K and Ka bands.More importantly,an ingenious self-powered device is constructed using the eco-mimetic nanoarchitecture,which can convert electromagnetic radiation into electric energy for recycling.This work offers a new insight into electromagnetic protection and waste energy recycling,presenting a broad application prospect in radar stealth,information communication,aerospace engineering,etc.展开更多
The energy devices for generation,conversion,and storage of electricity are widely used across diverse aspects of human life and various industry.Three-dimensional(3D)printing has emerged as a promising technology for...The energy devices for generation,conversion,and storage of electricity are widely used across diverse aspects of human life and various industry.Three-dimensional(3D)printing has emerged as a promising technology for the fabrication of energy devices due to its unique capability of manufacturing complex shapes across different length scales.3D-printed energy devices can have intricate 3D structures for significant performance enhancement,which are otherwise impossible to achieve through conventional manufacturing methods.Furthermore,recent progress has witnessed that 3D-printed energy devices with micro-lattice structures surpass their bulk counterparts in terms of mechanical properties as well as electrical performances.While existing literature focuses mostly on specific aspects of individual printed energy devices,a brief overview collectively covering the wide landscape of energy applications is lacking.This review provides a concise summary of recent advancements of 3D-printed energy devices.We classify these devices into three functional categories;generation,conversion,and storage of energy,offering insight on the recent progress within each category.Furthermore,current challenges and future prospects associated with 3Dprinted energy devices are discussed,emphasizing their potential to advance sustainable energy solutions.展开更多
Biomass cookstove improvement has been a global active research area for many decades and has resulted into much progress towards cleaner and more efficient energy conversion cooking devices. Irrespective of the perfe...Biomass cookstove improvement has been a global active research area for many decades and has resulted into much progress towards cleaner and more efficient energy conversion cooking devices. Irrespective of the perfection and development of improved cookstoves, many households in Kenya are still using three stone cookstoves. In Baringo County, 71.8% used three stone cookstoves. The focus of research needs to change towards adoption of improved cook stoves. A cross-sectional survey was conducted in rural, peri-urban and urban households regarding current cookstoves types in relation to fuel use categorized as improved and un-improved in Baringo and West Pokot counties. Biomass was the primary fuel in the two counties used in the form of firewood and charcoal at average of 70% and 26% respectively. The main un-improved cookstoves in the two counties were three stone and metallic jiko. The two were commonly used in Baringo County with 28.5% of the households using metallic stove. Whereas in West Pokot, Chepkube was the main cookstove used for cooking at 47.8% seconded by improved three stone at 36.6%. The use of un-improved cookstove was popular in Baringo County at 77.6% while infamous in West Pokot County at 21.7%. The results showed that West Pokot County is more conscious to energy related issues unlike Baringo County. The difference in dynamic of the two Counties in terms of land ownership, access to biofuel, social groupings, availability of cookstove installers and improved jikos could be the reason.展开更多
Developing sustainable and clean electrochemical energy conversion technologies is a crucial step in addressing the challenges of energy shortage and environmental pollution. Exploring and developing new electrocataly...Developing sustainable and clean electrochemical energy conversion technologies is a crucial step in addressing the challenges of energy shortage and environmental pollution. Exploring and developing new electrocatalysts with excellent performance and low cost will facilitate the commercial use of these energy conversion technologies. Recently, dual-atom catalysts(DACs) have attracted considerable research interest since they exhibit higher metal atom loading and more flexible active sites compared to single-atom catalysts(SACs). In this paper, the latest preparation methods and characterization techniques of DACs are systematically reviewed. The advantages of homonuclear and heteronuclear DACs and the catalytic mechanism and identification technologies between the two DACs are highlighted. The current applications of DACs in the field of electrocatalysis are summarized. The development opportunities and challenges of DACs in the future are prospected. The ultimate goal is to provide new ideas for the preparation of new catalysts with excellent properties by customizing diatomic catalysts for electrochemical applications.展开更多
Based on Smith-Beljers theory and classical laminate theory, an explicit model is proposed for the ferromagnetic resonance （FMR） frequency shift of a stress-mediumed laminated magnetoelectric structure tuned by an e...Based on Smith-Beljers theory and classical laminate theory, an explicit model is proposed for the ferromagnetic resonance （FMR） frequency shift of a stress-mediumed laminated magnetoelectric structure tuned by an electric field. This model can effectively predict the experimental phenomenon that the FMR frequency increases under a parallel magnetic field and decreases under a perpendicular magnetic field when the electric field ranges from - 10 kV/m to 10 kV/m. Besides, this theory further shows that the FMR frequency increases monotonically as the angle between the direction of the external magnetic field and the outside normal direction of the laminated structure increases, and the frequency will increase as great as 7 GHz. In addition, when the angle reaches a certain critical value, the external electric field fails to tune the FMR frequency. When the angle is above the critical value, the increase of the electric field induces the FMR frequency to increase, and the opposite scenario happens when it is below the critical value. When the angle is 90~ （parallel magnetic field）, the FMR frequency is the most sensitive to the change of the electric field.展开更多
Aqueous zinc(Zn)metal batteries(AZMBs)have been recognized as one of the most sustainable energy conversion devices due to their high resourcefulness,low environmental toxicity,and rechargeability.Among them,the Zn me...Aqueous zinc(Zn)metal batteries(AZMBs)have been recognized as one of the most sustainable energy conversion devices due to their high resourcefulness,low environmental toxicity,and rechargeability.Among them,the Zn metal anode,featuring a suitable redox potential(0.76 V vs.standard hydrogen electrode,SHE),high theoretical specific capacity(820 mAh g^(-1),5855 mAh cm^(-3)),and high conductivity,presents a favorable compatibility with aqueous electrolytes[1].展开更多
Zengqi Xie(解增旗) Prof. Zengqi Xie earned his B.Sc.degree in polymer science and engi-neering from Jilin University, China, in2002. He then pursued his Ph.D. in thefield of organic fluorescent materialsat Jilin Unive...Zengqi Xie(解增旗) Prof. Zengqi Xie earned his B.Sc.degree in polymer science and engi-neering from Jilin University, China, in2002. He then pursued his Ph.D. in thefield of organic fluorescent materialsat Jilin University, under the mentor-ship of Prof. Yuguang Ma, completinghis doctoral studies in 2007. Following that, he con-ducted postdoctoral research on hyperbranched conju-gated polymers at Seoul National University in SouthKorea, with Prof. Soo Young Park as his supervisor from2007 to 2009. In 2009, with support from the Alexandervon Humboldt Foundation, he conducted research onchiral supramolecular assemblies of fluorescent mole-cules at Würzburg University, Germany, under the guid-ance of Professor Frank Würthner. In 2012, he wasrecruited by South China University of Technology wherehe currently holds the position of full professor. Hisresearch group is actively engaged in the developmentof organic/polymer functional materials for photoelec-tric/electro-optic conversion devices.展开更多
ZnO is a typical direct wide-bandgap semiconductor material, which has various morphologies and unique physical and chemical properties, and is widely used in the fields of energy, information technology, biomedicine,...ZnO is a typical direct wide-bandgap semiconductor material, which has various morphologies and unique physical and chemical properties, and is widely used in the fields of energy, information technology, biomedicine, and others. The precise design and controllable fabrication of nanostructures have gradually become important avenues to further enhancing the performance of Zn O-based functional nanodevices. This paper introduces the continuous development of patterning technologies, provides a comprehensive review of the optical lithography and laser interference lithography techniques for the controllable fabrication of Zn O nanostructures, and elaborates on the potential applications of such patterned Zn O nanostructures in solar energy, water splitting, light emission devices, and nanogenerators. Patterned Zn O nanostructures with highly controllable morphology and structure possess discrete three-dimensional space structure, enlarged surface area, and improved light capture ability, which realize the efficient carrier regulation,achieve highly efficient energy conversion, and meet the diverse requirements of functional nanodevices. The patterning techniques proposed for the precise design of Zn O nanostructures not only have important guiding significance for the controllable fabrication of complex nanostructures of other materials, but also open up a new route for the further development of functional nanostructures.展开更多
Solar energy is one of the most popular clean energy sources and is a promising alternative to fulfill the increasing energy demands of modem society. Solar cells have long been under intensive research attention for ...Solar energy is one of the most popular clean energy sources and is a promising alternative to fulfill the increasing energy demands of modem society. Solar cells have long been under intensive research attention for harvesting energy from sunlight with a high power-conversion efficiency and low cost. However, the power outputs of photovoltaic devices suffer from fluctuations due to the intermittent instinct of the solar radiation. Integrating solar cells and energy- storage devices as self-powering systems may solve this problem through the simultaneous storage of the electricity and manipulation of the energy output. This review the research progress in the integration of new-generation solar cells with supercapacitors, with emphasis on the structures, materials, performance, and new design features. The current challenges and future prospects are discussed with the aim of expanding research and development in this field.展开更多
Two-dimensional Jamus van der Waals(vdW)heterojunctions,referring to the junction containing at least one Janus material,are found to exhibit tuneable electronic structures,wide light adsorption spectra,controllable c...Two-dimensional Jamus van der Waals(vdW)heterojunctions,referring to the junction containing at least one Janus material,are found to exhibit tuneable electronic structures,wide light adsorption spectra,controllable contact resistance,and sufficient redox potential due to the intrinsic polarization and unique interlayer coupling.These novel structures and properties are promising for the potential applications in eleetronics and energy conversion devices.To provide a comprehensive picture about the research progress and guide the following investigations,here we summarize their fundamental properties of different types of two-dimensional Janus vdW heterostruct ures including electronic struc-ture,interface contact and optical properties,and discuss the potential applications in electronics and energy conversion devices.The further challenges and possible research directions of the novel heterojunctions are discussed at the end of this review.展开更多
基金Project(2010CL04) supported by the Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, ChinaProject(K-081025) supported by State Key Laboratory Breeding Base of Photocatalysis,Fuzhou University,China
文摘Using carbon felt, polytetrafluoroethylene latex and powder catalyst to assembly a light energy conversion device, the photocatalytic activity of catalyst 2.0%WO3-TiO2 （2%WO3 compounding TiO2） with oxygen vacancies was studied through the water splitting for O2 evolution, using a high pressure mercury lamp as the light source and Fe^3＋ as the electron acceptor in two different devices： an ordinary photolysis device with catalyst powder suspending through a magnetic stirrer and a self-assembly light energy conversion device. The results show that after 12 h irradiation, the photocatalytic activity of 2.0%WO3-TiO2 with oxygen vacancies in the self-assembly light energy conversion device is higher than that of the ordinary photolysis device, and the amount of oxygen evolution is about 12 and 9 mmol/L respectively in these two devices. After 12 h, the rates of 02 evolution are slow in each device and the photocatalyst almost loses the photoactivity in the ordinary photolysis device. So, compared with the ordinary photocatalytic device, the rate of oxygen evolution and the life time of the catalyst are improved in the self-assembly light energy conversion device.
基金supported by the National Research Foundation of Korea(Grant number:NRF-2023R1A2C2005864)supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(RS-2024-00406240)+3 种基金supported by a National Research Foundation of Korea(NRF)Grant funded by the Korean Government(MSIT)(No.2022R1A2C1003853)supported by a National Research Foundation of Korea(NRF)Grant funded by the Korean Government(MSIT)(No.RS-2023-00217661)Technology Innovation Program(RS-2022-00155961,Development of a high-efficiency drying system for carbon reduction and high-loading electrodes by a flash light source)funded by the Ministry of Trade&,Energy(MOTIE,Korea)supported by a National Research Foundation of Korea(NRF)Grant funded by the Korean Government(MSIT)(No.2022R1A2C4001497).
文摘This review provides a comprehensive overview of the progress in light-material interactions(LMIs),focusing on lasers and flash lights for energy conversion and storage applications.We discuss intricate LMI parameters such as light sources,interaction time,and fluence to elucidate their importance in material processing.In addition,this study covers various light-induced photothermal and photochemical processes ranging from melting,crystallization,and ablation to doping and synthesis,which are essential for developing energy materials and devices.Finally,we present extensive energy conversion and storage applications demonstrated by LMI technologies,including energy harvesters,sensors,capacitors,and batteries.Despite the several challenges associated with LMIs,such as complex mechanisms,and high-degrees of freedom,we believe that substantial contributions and potential for the commercialization of future energy systems can be achieved by advancing optical technologies through comprehensive academic research and multidisciplinary collaborations.
基金financially supported by the National Natural Science Foundation of China(No.52336009)Guangdong Basic and Applied Basic Research Foundation(No.2023A1515010429)+4 种基金the Natural Science Basic Research Plan in Shaanxi Province of China(No.2024JC-YBQN-0475)Xidian University Specially Funded Project for Interdisciplinary Exploration(No.TZJH2024063)the Fundamental Research Funds for the Central Universities(No.QTZX23061)Qinchuangyuan Project(No.QCYRCXM-2022-236)the Innovation Center of Nuclear Power Technology(No.HDLCXZX-2022-ZH-013)
文摘Solid oxide fuel cell(SOFC)is a promising energy conversion device because of its high efficiency and fuel/oxidant flexibility,enabling the direct conversion of chemical energy to electrical power.By using N_(2)O as an oxidant instead of air,we develop a dual-phase catalyst La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3-δ)-Gd_(0.1)Ce_(0.9)O_(2-δ)(LSCF-GDC),which exhibits efficient bifunctionality as a cathode for SOFC,synergistic ally promoting simultaneous N_(2)O decomposition and oxygen reduction kinetics.
基金supported by National Natural Science Foundation of China(No.52177014,52273257,51977009,11774027,51372282,and 51132002).
文摘Advanced electromagnetic devices,as the pillars of the intelligent age,are setting off a grand transformation,redefining the structure of society to present pluralism and diversity.However,the bombardment of electromagnetic radiation on society is also increasingly serious along with the growing popularity of"Big Data".Herein,drawing wisdom and inspiration from nature,an eco-mimetic nanoarchitecture is constructed for the first time,highly integrating the advantages of multiple components and structures to exhibit excellent electromagnetic response.Its electromagnetic properties and internal energy conversion can be flexibly regulated by tailoring microstructure with oxidative molecular layer deposition(oMLD),providing a new cognition to frequency-selective microwave absorption.The optimal reflection loss reaches≈−58 dB,and the absorption frequency can be shifted from high frequency to low frequency by increasing the number of oMLD cycles.Meanwhile,a novel electromagnetic absorption surface is designed to enable ultra-wideband absorption,covering almost the entire K and Ka bands.More importantly,an ingenious self-powered device is constructed using the eco-mimetic nanoarchitecture,which can convert electromagnetic radiation into electric energy for recycling.This work offers a new insight into electromagnetic protection and waste energy recycling,presenting a broad application prospect in radar stealth,information communication,aerospace engineering,etc.
基金supported by the New Faculty Startup Fund from Seoul National University.The authors also acknowledge the financial support from the National Research Foundation of Korea(NRF)Grants funded by the Korean Government(MSIT)(2022R1A2C200356612,RS-2023-00218543,and RS-2023-00221987).
文摘The energy devices for generation,conversion,and storage of electricity are widely used across diverse aspects of human life and various industry.Three-dimensional(3D)printing has emerged as a promising technology for the fabrication of energy devices due to its unique capability of manufacturing complex shapes across different length scales.3D-printed energy devices can have intricate 3D structures for significant performance enhancement,which are otherwise impossible to achieve through conventional manufacturing methods.Furthermore,recent progress has witnessed that 3D-printed energy devices with micro-lattice structures surpass their bulk counterparts in terms of mechanical properties as well as electrical performances.While existing literature focuses mostly on specific aspects of individual printed energy devices,a brief overview collectively covering the wide landscape of energy applications is lacking.This review provides a concise summary of recent advancements of 3D-printed energy devices.We classify these devices into three functional categories;generation,conversion,and storage of energy,offering insight on the recent progress within each category.Furthermore,current challenges and future prospects associated with 3Dprinted energy devices are discussed,emphasizing their potential to advance sustainable energy solutions.
文摘Biomass cookstove improvement has been a global active research area for many decades and has resulted into much progress towards cleaner and more efficient energy conversion cooking devices. Irrespective of the perfection and development of improved cookstoves, many households in Kenya are still using three stone cookstoves. In Baringo County, 71.8% used three stone cookstoves. The focus of research needs to change towards adoption of improved cook stoves. A cross-sectional survey was conducted in rural, peri-urban and urban households regarding current cookstoves types in relation to fuel use categorized as improved and un-improved in Baringo and West Pokot counties. Biomass was the primary fuel in the two counties used in the form of firewood and charcoal at average of 70% and 26% respectively. The main un-improved cookstoves in the two counties were three stone and metallic jiko. The two were commonly used in Baringo County with 28.5% of the households using metallic stove. Whereas in West Pokot, Chepkube was the main cookstove used for cooking at 47.8% seconded by improved three stone at 36.6%. The use of un-improved cookstove was popular in Baringo County at 77.6% while infamous in West Pokot County at 21.7%. The results showed that West Pokot County is more conscious to energy related issues unlike Baringo County. The difference in dynamic of the two Counties in terms of land ownership, access to biofuel, social groupings, availability of cookstove installers and improved jikos could be the reason.
文摘Developing sustainable and clean electrochemical energy conversion technologies is a crucial step in addressing the challenges of energy shortage and environmental pollution. Exploring and developing new electrocatalysts with excellent performance and low cost will facilitate the commercial use of these energy conversion technologies. Recently, dual-atom catalysts(DACs) have attracted considerable research interest since they exhibit higher metal atom loading and more flexible active sites compared to single-atom catalysts(SACs). In this paper, the latest preparation methods and characterization techniques of DACs are systematically reviewed. The advantages of homonuclear and heteronuclear DACs and the catalytic mechanism and identification technologies between the two DACs are highlighted. The current applications of DACs in the field of electrocatalysis are summarized. The development opportunities and challenges of DACs in the future are prospected. The ultimate goal is to provide new ideas for the preparation of new catalysts with excellent properties by customizing diatomic catalysts for electrochemical applications.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.10802082 and 11172285)the Natural Science Foundation of Zhejiang Province of China(Grant No.LR13A020002)the China Postdoctoral Science Foundation(Grant Nos.20100480089 and 201104727)
文摘Based on Smith-Beljers theory and classical laminate theory, an explicit model is proposed for the ferromagnetic resonance （FMR） frequency shift of a stress-mediumed laminated magnetoelectric structure tuned by an electric field. This model can effectively predict the experimental phenomenon that the FMR frequency increases under a parallel magnetic field and decreases under a perpendicular magnetic field when the electric field ranges from - 10 kV/m to 10 kV/m. Besides, this theory further shows that the FMR frequency increases monotonically as the angle between the direction of the external magnetic field and the outside normal direction of the laminated structure increases, and the frequency will increase as great as 7 GHz. In addition, when the angle reaches a certain critical value, the external electric field fails to tune the FMR frequency. When the angle is above the critical value, the increase of the electric field induces the FMR frequency to increase, and the opposite scenario happens when it is below the critical value. When the angle is 90~ （parallel magnetic field）, the FMR frequency is the most sensitive to the change of the electric field.
基金supported by the National Natural Science Foundation of China(51502036)the Young Top Talent of Fujian Young Eagle Program of Fujian Province and Natural Science Foundation of Fujian Province(2023J02013,2023YZ038001).
文摘Aqueous zinc(Zn)metal batteries(AZMBs)have been recognized as one of the most sustainable energy conversion devices due to their high resourcefulness,low environmental toxicity,and rechargeability.Among them,the Zn metal anode,featuring a suitable redox potential(0.76 V vs.standard hydrogen electrode,SHE),high theoretical specific capacity(820 mAh g^(-1),5855 mAh cm^(-3)),and high conductivity,presents a favorable compatibility with aqueous electrolytes[1].
文摘Zengqi Xie(解增旗) Prof. Zengqi Xie earned his B.Sc.degree in polymer science and engi-neering from Jilin University, China, in2002. He then pursued his Ph.D. in thefield of organic fluorescent materialsat Jilin University, under the mentor-ship of Prof. Yuguang Ma, completinghis doctoral studies in 2007. Following that, he con-ducted postdoctoral research on hyperbranched conju-gated polymers at Seoul National University in SouthKorea, with Prof. Soo Young Park as his supervisor from2007 to 2009. In 2009, with support from the Alexandervon Humboldt Foundation, he conducted research onchiral supramolecular assemblies of fluorescent mole-cules at Würzburg University, Germany, under the guid-ance of Professor Frank Würthner. In 2012, he wasrecruited by South China University of Technology wherehe currently holds the position of full professor. Hisresearch group is actively engaged in the developmentof organic/polymer functional materials for photoelec-tric/electro-optic conversion devices.
基金supported by the National Key Research and Development Program of China(2013CB932602 and 2016YFA0202701)the Program of Introducing Talents of Discipline to Universities(B14003)+2 种基金the National Natural Science Foundation of China(51527802,51232001,51372020 and 51602020)Beijing Municipal Science&Technology Commission(Z151100003315021)China Postdoctoral Science Foundation(2016M600039)
文摘ZnO is a typical direct wide-bandgap semiconductor material, which has various morphologies and unique physical and chemical properties, and is widely used in the fields of energy, information technology, biomedicine, and others. The precise design and controllable fabrication of nanostructures have gradually become important avenues to further enhancing the performance of Zn O-based functional nanodevices. This paper introduces the continuous development of patterning technologies, provides a comprehensive review of the optical lithography and laser interference lithography techniques for the controllable fabrication of Zn O nanostructures, and elaborates on the potential applications of such patterned Zn O nanostructures in solar energy, water splitting, light emission devices, and nanogenerators. Patterned Zn O nanostructures with highly controllable morphology and structure possess discrete three-dimensional space structure, enlarged surface area, and improved light capture ability, which realize the efficient carrier regulation,achieve highly efficient energy conversion, and meet the diverse requirements of functional nanodevices. The patterning techniques proposed for the precise design of Zn O nanostructures not only have important guiding significance for the controllable fabrication of complex nanostructures of other materials, but also open up a new route for the further development of functional nanostructures.
文摘Solar energy is one of the most popular clean energy sources and is a promising alternative to fulfill the increasing energy demands of modem society. Solar cells have long been under intensive research attention for harvesting energy from sunlight with a high power-conversion efficiency and low cost. However, the power outputs of photovoltaic devices suffer from fluctuations due to the intermittent instinct of the solar radiation. Integrating solar cells and energy- storage devices as self-powering systems may solve this problem through the simultaneous storage of the electricity and manipulation of the energy output. This review the research progress in the integration of new-generation solar cells with supercapacitors, with emphasis on the structures, materials, performance, and new design features. The current challenges and future prospects are discussed with the aim of expanding research and development in this field.
基金supported by National Natural Science foundation of China(Grant No.11804006)Henan Key Program of Technology Research and Development(No.182102310907)+2 种基金Henan College Key Research Project(No.19A430006)L.Ju gratefully acknowledges China scholarship council for its support(No.201908410036)L.Kou gratefully acknowledges financial support by the ARC Discovery Project(No.DP190101607).
文摘Two-dimensional Jamus van der Waals(vdW)heterojunctions,referring to the junction containing at least one Janus material,are found to exhibit tuneable electronic structures,wide light adsorption spectra,controllable contact resistance,and sufficient redox potential due to the intrinsic polarization and unique interlayer coupling.These novel structures and properties are promising for the potential applications in eleetronics and energy conversion devices.To provide a comprehensive picture about the research progress and guide the following investigations,here we summarize their fundamental properties of different types of two-dimensional Janus vdW heterostruct ures including electronic struc-ture,interface contact and optical properties,and discuss the potential applications in electronics and energy conversion devices.The further challenges and possible research directions of the novel heterojunctions are discussed at the end of this review.
