The increasing demand for solar energy,driven by the climate crisis and carbon neutrality goals,un-derscores the critical importance of aesthetics in solar panel integration across diverse environments,such as buildin...The increasing demand for solar energy,driven by the climate crisis and carbon neutrality goals,un-derscores the critical importance of aesthetics in solar panel integration across diverse environments,such as building-integrated photovoltaics.This study addresses this need by developing angle-insensitive coloration for translucent perovskite-colored solar cells(TPCSCs)to enhance both functionality and con-sumer appeal.By engineering oxide/metal/oxide(OMO)multilayer structures,we achieved consistent col-oration regardless of the viewing angle,overcoming a major challenge in colored solar cell technology.Specifically,ZnO:Al/Ag/ZnO:Al-based OMO layers were meticulously optimized to balance visual appeal with photovoltaic efficiency.Our results demonstrate exceptional angular stability,with negligible color shifts observed even at viewing angles exceeding 60°,significantly surpassing the limitations of previ-ous designs,which exhibited sensitivity at 40°.The OMO electrodes exploited distributed Bragg reflector(DBR)properties to amplify interference effects and utilized delocalized plasmonic modes and metal-dielectric-metal(MDM)cavity resonances to achieve vibrant colors.Advanced 3-pair OMO transparent conductive electrodes(TCEs)exhibited stable,angle-insensitive blue coloration,and the resulting translu-cent perovskite solar cell achieved a record-high power conversion efficiency(PCE)of 8.25%and an av-erage transmittance of 15.23%,maintaining consistent coloration up to a 60°viewing angle.Additionally,the optoelectronic control layer(OCL)thickness was fine-tuned to precisely target specific wavelengths,enabling a versatile spectrum of colors,including blue,green,yellowish-green,orange,and peach.This pioneering approach not only ensures color fidelity but also enhances the reflectance properties of TPC-SCs.By integrating aesthetic and functional advancements,our research makes a significant contribution to the development of sustainable energy solutions for future smart cities.展开更多
Electromagnetic(EM)wave absorbers with wideband absorption capability are proposed as a strategy to mitigate environmental pollution by EM waves.However,designing an EM absorber with its performance capacity independe...Electromagnetic(EM)wave absorbers with wideband absorption capability are proposed as a strategy to mitigate environmental pollution by EM waves.However,designing an EM absorber with its performance capacity independent of the EM wave incident angle remains elusive to date.Resolving this challenge requires development of EM absorbers whose EM absorption performance is insensitive to the EM wave incident angle.Herein,we synthesized EM absorbers with a variety of structures with different symme-tries(including micro-/nanospheres,nanoflakes and nanotubes)to study the effect of the EM absorbers’structure and the EM wave incident angle on the EM absorption performance.Our analysis reveals that non-magnetic EM absorbers with spatially symmetric nanostructures exhibit excellent EM wave incident angle-insensitivity.Finally,we demonstrate that a class of non-magnetic EM absorbers made from bam-boo derived-carbon nanospheres exhibit EM incident angle-insensitivity and wideband EM absorption performance with an effective absorption band up to 3.5 GHz when the thickness is 1.4 mm,a signif-icant improvement from prior studies which used thicknesses as high as 3-4 mm for comparable EM absorption performance.展开更多
基金supported by the National Research Foundation of Korea(NRF)funded by the Korea government(MSIT)(NRF-RS-2023-00217270,RS-2023-00212744,and RS-2024-00436187)the Fundamental Research Program(PNKA390)of the Korean Institute of Materials Science(KIMS)+1 种基金the National Research Council of Science&Technology(NST)grant by the Korea govern-ment(MSIT)(No.GTL24041-000)the Energy Technology De-velopment Program of the Korean Institute of Energy Technology Evaluation and Planning(KETEP)(Grant No.RS-2023-00301944).
文摘The increasing demand for solar energy,driven by the climate crisis and carbon neutrality goals,un-derscores the critical importance of aesthetics in solar panel integration across diverse environments,such as building-integrated photovoltaics.This study addresses this need by developing angle-insensitive coloration for translucent perovskite-colored solar cells(TPCSCs)to enhance both functionality and con-sumer appeal.By engineering oxide/metal/oxide(OMO)multilayer structures,we achieved consistent col-oration regardless of the viewing angle,overcoming a major challenge in colored solar cell technology.Specifically,ZnO:Al/Ag/ZnO:Al-based OMO layers were meticulously optimized to balance visual appeal with photovoltaic efficiency.Our results demonstrate exceptional angular stability,with negligible color shifts observed even at viewing angles exceeding 60°,significantly surpassing the limitations of previ-ous designs,which exhibited sensitivity at 40°.The OMO electrodes exploited distributed Bragg reflector(DBR)properties to amplify interference effects and utilized delocalized plasmonic modes and metal-dielectric-metal(MDM)cavity resonances to achieve vibrant colors.Advanced 3-pair OMO transparent conductive electrodes(TCEs)exhibited stable,angle-insensitive blue coloration,and the resulting translu-cent perovskite solar cell achieved a record-high power conversion efficiency(PCE)of 8.25%and an av-erage transmittance of 15.23%,maintaining consistent coloration up to a 60°viewing angle.Additionally,the optoelectronic control layer(OCL)thickness was fine-tuned to precisely target specific wavelengths,enabling a versatile spectrum of colors,including blue,green,yellowish-green,orange,and peach.This pioneering approach not only ensures color fidelity but also enhances the reflectance properties of TPC-SCs.By integrating aesthetic and functional advancements,our research makes a significant contribution to the development of sustainable energy solutions for future smart cities.
基金financial support from the startup fund of the Ohio State University (OSU)OSU Sustainability Institute Seed Grant+5 种基金OSU Institute for Materials Research Kickstart Facility Grantthe National Natural Science Foundation of China (No. 31971740)support from the National Natural Science Foundation of China (No. 31901007)Science and technology project of Jiangsu Province (BE2018391)State Key Laboratory Special Fund(No. 2060204)fund from Henan University of Science and Technology (2020-RSC02)
文摘Electromagnetic(EM)wave absorbers with wideband absorption capability are proposed as a strategy to mitigate environmental pollution by EM waves.However,designing an EM absorber with its performance capacity independent of the EM wave incident angle remains elusive to date.Resolving this challenge requires development of EM absorbers whose EM absorption performance is insensitive to the EM wave incident angle.Herein,we synthesized EM absorbers with a variety of structures with different symme-tries(including micro-/nanospheres,nanoflakes and nanotubes)to study the effect of the EM absorbers’structure and the EM wave incident angle on the EM absorption performance.Our analysis reveals that non-magnetic EM absorbers with spatially symmetric nanostructures exhibit excellent EM wave incident angle-insensitivity.Finally,we demonstrate that a class of non-magnetic EM absorbers made from bam-boo derived-carbon nanospheres exhibit EM incident angle-insensitivity and wideband EM absorption performance with an effective absorption band up to 3.5 GHz when the thickness is 1.4 mm,a signif-icant improvement from prior studies which used thicknesses as high as 3-4 mm for comparable EM absorption performance.
