Perovskite enhanced solid state ZnO solar cells

13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Loh, L.^1,2 ; Briscoe, J.^2 ; Dunn, S.^2

School of Engineering, Nanyang Polytechnic, 180 Ang Mo Kio Ave 8, S568930 Singapore, Singapore^1

School of Engineering and Materials Science, Queen Mary, University of London, Mile End Road, London, E1 4NS, United Kingdom^2

关键词: 3-aminopropyl trimethoxysilane;    Chemical solutions;    Corrosive environment;    CuSCN;    Electron recombinations;    Photovoltaic performance;    Simulated sunlight;    Solid state solar cells;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/476/1/012008/pdf
DOI  :  10.1088/1742-6596/476/1/012008

来源: IOP

【 摘 要 】

This paper will report on the design, fabrication and testing of a solid-state perovskite enhanced ZnO solar cell. The p-type perovskite material used is bismuth ferrite (BFO) which has an absorption range within the blue range of the visible light spectrum. The solid state solar cell, was sensitized with N719 dye and used a CuSCN hole conductor. A disadvantage of ZnO is its poor chemical stability in acidic and corrosive environments. As chemical solution techniques were used in depositing BFO, a buffer method using an aminosilane ((3-aminopropyltrimethoxysilane or H2N(CH2)3Si(OCH3)3)) coating was used to provide a protective coating on the ZnO nanorods before the BFO film was spin coated onto the ZnO nanorods. The photovoltaic performance of the solar cells were tested using a Keithley 2400 source meter under 100mW/cm2, AM 1.5G simulated sunlight, where improvements in Jscand efficiency were observed. The BFO was able to harness more electrons and also acted as a buffer from electron recombination.