Cu2ZnSnS4 solar cells with a single spin-coated absorber layer prepared via a simple sol-gel route
- Authors
- Youn, Na Kyoung; Agawane, Ganesh L.; Nam, Dahyun; Gwak, Jihye; Shin, Seung Wook; Kim, Jin Hyeok; Yun, Jae Ho; Ahn, SeJin; Cho, Ara; Eo, Young Ju; Ahn, Seung Kyu; Cheong, Hyeonsik; Kim, Dong Hwan; Shin, Kee-Shik; Yoon, Kyung Hoon
- Issue Date
- 4월-2016
- Publisher
- WILEY
- Keywords
- Cu2ZnSnS4; thin film solar cell; sol-gel process; single-coating; 2-methoxyethanol
- Citation
- INTERNATIONAL JOURNAL OF ENERGY RESEARCH, v.40, no.5, pp.662 - 669
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF ENERGY RESEARCH
- Volume
- 40
- Number
- 5
- Start Page
- 662
- End Page
- 669
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/89040
- DOI
- 10.1002/er.3446
- ISSN
- 0363-907X
- Abstract
- Carbon-free Cu2ZnSnS4 (CZTS) thin films were prepared via a simple spin-coating process based on a sol-gel precursor of methoxyethanol solution with metal salts and thiourea, followed by post-sulfurization. The sol-gel precursor solution was deposited onto molybdenum-coated glass substrates. The sulfurization process was carried out using a conventional furnace at 525 degrees C for 60min in a nitrogen atmosphere with sulfur powder. The structural, morphological and compositional properties of as-sulfurized thin films were characterized using X-ray diffraction, Raman spectroscopy, scanning electron microscopy and Auger electron spectroscopy. Only a single coating of the precursor solution was applied to obtain uniform Zn-rich and Cu-poor CZTS films thicker than 1 mu m after post-annealing. The best solar cell fabricated with the as-prepared CZTS films of band gap energy 1.37eV showed a short-circuit current density of 10.15mA/cm(2), an open circuit voltage of 0.509V, a fill factor of 33.72% and a conversion efficiency of 1.74%. Copyright (c) 2015 John Wiley & Sons, Ltd.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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