The growing global energy demand and worsening climate change highlight the urgent need for clean,efficient and sustainable energy solutions.Among emerging technologies,atomically thin two-dimensional(2D)materials off...The growing global energy demand and worsening climate change highlight the urgent need for clean,efficient and sustainable energy solutions.Among emerging technologies,atomically thin two-dimensional(2D)materials offer unique advantages in photovoltaics due to their tunable optoelectronic properties,high surface area and efficient charge transport capabilities.This review explores recent progress in photovoltaics incorporating 2D materials,focusing on their application as hole and electron transport layers to optimize bandgap alignment,enhance carrier mobility and improve chemical stability.A comprehensive analysis is presented on perovskite solar cells utilizing 2D materials,with a particular focus on strategies to enhance crystallization,passivate defects and improve overall cell efficiency.Additionally,the application of 2D materials in organic solar cells is examined,particularly for reducing recombination losses and enhancing charge extraction through work function modification.Their impact on dye-sensitized solar cells,including catalytic activity and counter electrode performance,is also explored.Finally,the review outlines key challenges,material limitations and performance metrics,offering insight into the future development of nextgeneration photovoltaic devices encouraged by 2D materials.展开更多
Palladium diselenide(PdSe_(2)),a novel two-dimensional(2D)material with a unique pentagonal crystal structure including anisotropic properties,has emerged as a highly promising candidate for developing the next genera...Palladium diselenide(PdSe_(2)),a novel two-dimensional(2D)material with a unique pentagonal crystal structure including anisotropic properties,has emerged as a highly promising candidate for developing the next generation photoelectronic devices.In this review,firstly,we have shed light on key figures of merit for polarization detection.After that,this review mainly highlights the structural and electronic properties of PdSe_(2)focusing on its strong polarization sensitivity,tunable bandgap,and excellent environmental stability,making it ideal for developing the photoelectronic devices such as broadband photodetectors and their further applications in polarization detection-based imaging systems.We also discuss challenges in scalable synthesis,material stability,and integration with other low-dimensional materials,offering future research directions to optimize PdSe_(2)for commercial applications.Owing to the outstanding optoelectronic properties of PdSe_(2),it stands at the forefront of optoelectronic materials,poised to enable new innovations in polarization photodetection.展开更多
Photoelectrochemical(PEC)photodetectors(PDs)enabling high sensitivity/stability and self-powered operation in undersea weak-light environments is significant to the development of underwater optical communication(UOC)...Photoelectrochemical(PEC)photodetectors(PDs)enabling high sensitivity/stability and self-powered operation in undersea weak-light environments is significant to the development of underwater optical communication(UOC)application.However,to date,the UOC system based on weak light-driven PEC PDs has rarely been investigated,primarily due to the lack of functional material and relevant heterojunction photoelectrodes with efficient weak light harvesting,fast response time and high stability.Herein,we introduced the Al doping in colloidal CuInS_(2)(CIS)quantum dots(QDs)to suppress the non-radiative recombination and induce the self-oxidation Al2O3 protective layer for largely enhanced photo-/chemical stability.The prepared Al-doped CIS QDs were used to decorate BiVO4(BVO)as photoelectrodes for the fabrication of PEC PD devices,which delivered a maximum responsivity of 1 A·W^(−1),a detectivity of 1.02×10^(12)Jones,fast response time(26/25 ms)and ultrastable long-term stability(performance nearly unchanged after 36-hour stability test),thus demonstrating the UOC application even under a weak-light intensity of 0.14 mW·cm^(−2).The results manifest the potential of rationally designed QDs/metal oxide photoelectrode to achieve highly efficient and stable PEC PDs for next-generation weak-light UOC applications.展开更多
基金supported by the IITP(Institute of Information & Communications Technology Planning & Evaluation)-ITRC(Information Technology Research Center) grant funded by the Korea government(Ministry of Science and ICT) (IITP-2025-RS-2024-00437191, and RS-2025-02303505)partly supported by the Korea Basic Science Institute (National Research Facilities and Equipment Center) grant funded by the Ministry of Education. (No. 2022R1A6C101A774)the Deanship of Research and Graduate Studies at King Khalid University, Saudi Arabia, through Large Research Project under grant number RGP-2/527/46
文摘The growing global energy demand and worsening climate change highlight the urgent need for clean,efficient and sustainable energy solutions.Among emerging technologies,atomically thin two-dimensional(2D)materials offer unique advantages in photovoltaics due to their tunable optoelectronic properties,high surface area and efficient charge transport capabilities.This review explores recent progress in photovoltaics incorporating 2D materials,focusing on their application as hole and electron transport layers to optimize bandgap alignment,enhance carrier mobility and improve chemical stability.A comprehensive analysis is presented on perovskite solar cells utilizing 2D materials,with a particular focus on strategies to enhance crystallization,passivate defects and improve overall cell efficiency.Additionally,the application of 2D materials in organic solar cells is examined,particularly for reducing recombination losses and enhancing charge extraction through work function modification.Their impact on dye-sensitized solar cells,including catalytic activity and counter electrode performance,is also explored.Finally,the review outlines key challenges,material limitations and performance metrics,offering insight into the future development of nextgeneration photovoltaic devices encouraged by 2D materials.
基金supported by the National Key Research and Development Program of China under Grant No.2019YFB 2203400the“111 project”under Grant No.B20030.
文摘Palladium diselenide(PdSe_(2)),a novel two-dimensional(2D)material with a unique pentagonal crystal structure including anisotropic properties,has emerged as a highly promising candidate for developing the next generation photoelectronic devices.In this review,firstly,we have shed light on key figures of merit for polarization detection.After that,this review mainly highlights the structural and electronic properties of PdSe_(2)focusing on its strong polarization sensitivity,tunable bandgap,and excellent environmental stability,making it ideal for developing the photoelectronic devices such as broadband photodetectors and their further applications in polarization detection-based imaging systems.We also discuss challenges in scalable synthesis,material stability,and integration with other low-dimensional materials,offering future research directions to optimize PdSe_(2)for commercial applications.Owing to the outstanding optoelectronic properties of PdSe_(2),it stands at the forefront of optoelectronic materials,poised to enable new innovations in polarization photodetection.
基金support from the Sichuan Science and Technology Program(No.2024JDRC0057)the Yunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan University(No.ZZ2024001)+1 种基金the support from the Sichuan Science and Technology Program(No.2023NSFSC0461)A.I.C.acknowledges the support from the National Natural Science Foundation of China(No.W2433035).
文摘Photoelectrochemical(PEC)photodetectors(PDs)enabling high sensitivity/stability and self-powered operation in undersea weak-light environments is significant to the development of underwater optical communication(UOC)application.However,to date,the UOC system based on weak light-driven PEC PDs has rarely been investigated,primarily due to the lack of functional material and relevant heterojunction photoelectrodes with efficient weak light harvesting,fast response time and high stability.Herein,we introduced the Al doping in colloidal CuInS_(2)(CIS)quantum dots(QDs)to suppress the non-radiative recombination and induce the self-oxidation Al2O3 protective layer for largely enhanced photo-/chemical stability.The prepared Al-doped CIS QDs were used to decorate BiVO4(BVO)as photoelectrodes for the fabrication of PEC PD devices,which delivered a maximum responsivity of 1 A·W^(−1),a detectivity of 1.02×10^(12)Jones,fast response time(26/25 ms)and ultrastable long-term stability(performance nearly unchanged after 36-hour stability test),thus demonstrating the UOC application even under a weak-light intensity of 0.14 mW·cm^(−2).The results manifest the potential of rationally designed QDs/metal oxide photoelectrode to achieve highly efficient and stable PEC PDs for next-generation weak-light UOC applications.
