To achieve real-time and high-sensitive humidity sensing,a universal method was developed to allow arbitrary nanocrystals to be attached to the end of an optical fiber,further producing an effective interference spect...To achieve real-time and high-sensitive humidity sensing,a universal method was developed to allow arbitrary nanocrystals to be attached to the end of an optical fiber,further producing an effective interference spectrum.To validate this approach,four classical metal-organic framework(MOF) materials(ZIF-8,UiO-66,HKUST-1,MIL-101) are connected to the end of a single-mode optical fiber by this connection method to form humidity sensors.展开更多
Solution-processed semiconductors such as perovskite compounds have attracted tremendous attention to photovoltaic research due to the significantly higher energy conversion efficiencies and lower processing costs.How...Solution-processed semiconductors such as perovskite compounds have attracted tremendous attention to photovoltaic research due to the significantly higher energy conversion efficiencies and lower processing costs.However,concerns over stability and the toxicity on lead in CH_3NH_3PbI_3 create the need for still easily-accessible but more stable and environmentally friendly materials.Here,we present NaSbS_2 as a non-toxic,earth-abundant promising material consisting of densely packed（1/∞）[SbS_2^-]polymeric chains and sodium ions.The ionic nature makes it sharing the similar dissolution superiority with perovskite,providing great potential for low-cost and large-scale fabrication.Phase pure NaSbS_2thin film was successfully fabricated using spray-pyrolysis method,and its photovoltaic relevant material,optical and electrical properties were carefully studied.Finally,a prototype NaSbS_2-based thinfilm solar cell has been successfully demonstrated,yielding a power conversion efficiency of 0.13%.The systematic experimental and theoretical investigations,combined with proof-of-principle device results,indicate that NaSbS_2 is indeed very promising for photovoltaic application.展开更多
基金financially supported by Hainan Province Science and Technology Special Fund (No. ZDYF2022S HFZ090)the National Natural Science Foundation of China (Nos.22061014,62175054 and 61865005)+1 种基金Hainan University start-up fund (No.KYQ(ZR)1806)the Open Project Program of Wuhan National Laboratory for Optoelectronics (No.2020WNLOKF001)。
文摘To achieve real-time and high-sensitive humidity sensing,a universal method was developed to allow arbitrary nanocrystals to be attached to the end of an optical fiber,further producing an effective interference spectrum.To validate this approach,four classical metal-organic framework(MOF) materials(ZIF-8,UiO-66,HKUST-1,MIL-101) are connected to the end of a single-mode optical fiber by this connection method to form humidity sensors.
基金financially supported by the Major State Basic Research Development Program of China(No.2016YFA0204000)the National Natural Science Foundation of China(Nos.61322401,51402115 and 21403078)+3 种基金the HUST Key Innovation Team for Interdisciplinary Promotion(No.2016JCTD111)Hubei Provincial Natural Science Foundation of China(No.2016CFB464)the Fundamental Research Funds for the Central Universities(WUT:2016IVA089,2016III030)the director fund of Wuhan National Laboratory for Optoelectronics
文摘Solution-processed semiconductors such as perovskite compounds have attracted tremendous attention to photovoltaic research due to the significantly higher energy conversion efficiencies and lower processing costs.However,concerns over stability and the toxicity on lead in CH_3NH_3PbI_3 create the need for still easily-accessible but more stable and environmentally friendly materials.Here,we present NaSbS_2 as a non-toxic,earth-abundant promising material consisting of densely packed（1/∞）[SbS_2^-]polymeric chains and sodium ions.The ionic nature makes it sharing the similar dissolution superiority with perovskite,providing great potential for low-cost and large-scale fabrication.Phase pure NaSbS_2thin film was successfully fabricated using spray-pyrolysis method,and its photovoltaic relevant material,optical and electrical properties were carefully studied.Finally,a prototype NaSbS_2-based thinfilm solar cell has been successfully demonstrated,yielding a power conversion efficiency of 0.13%.The systematic experimental and theoretical investigations,combined with proof-of-principle device results,indicate that NaSbS_2 is indeed very promising for photovoltaic application.
