Evaluation of Optical Absorption in Cu2ZnSn(S,Se)4 Absorber Within Cell Structure by Fourier Transform Photocurrent Spectroscopy
| Autor: | Kanta Sugimoto, Shuichi Nonomura, Kousei Tanabe, Shigeru Yamada, Abd Rahman Nur Syazwana, Takashi Itoh, Akira Yamada |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Photocurrent Materials science computer.internet_protocol Band gap business.industry Photoconductivity 02 engineering and technology Photon energy 021001 nanoscience & nanotechnology 01 natural sciences FTPS symbols.namesake Fourier transform 0103 physical sciences symbols Optoelectronics 0210 nano-technology Absorption (electromagnetic radiation) Spectroscopy business computer |
| Zdroj: | 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC). |
| DOI: | 10.1109/pvsc.2018.8547929 |
| Popis: | We demonstrated to evaluate optical absorption spectra of Cu 2 ZnSn(S,Se) 4 (CZTSSe) photo-absorbers within cell structure by Fourier transform photocurrent spectroscopy (FTPS). FTPS measurements were carried out for two series of CZTSSe thin film solar cells using window layer with different thickness. In the spectra, exponential tail was found below photon energy of 1.2 eV. We indicated that band gap energy and Urbach energy of CZTSSe photo-absorbers were determined from the spectra obtained by FTPS measurements for CZTSSe thin film solar cells. |
| Databáze: | OpenAIRE |
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