| 학회 | 한국재료학회 |
| 학술대회 | 2018년 봄 (05/16 ~ 05/18, 삼척 쏠비치 호텔&리조트) |
| 권호 | 24권 1호 |
| 발표분야 | 7. 차세대 태양에너지 재료 및 디바이스(Emerging Solar Energy Materials and Devices)-오거나이저: 신병하 교수(KAIST) |
| 제목 | Synthesis of CZTSSe absorber by sulfo-selenization of metal precursor stack |
| 초록 | In recent years, Kesterite based Cu2SnZnS4 (CZTS), Cu2SnZnSe4 (CZTSe), and Cu2ZnSn(S,Se)4 (CZTSSe) have been considered promising candidates for large-area module production due to its advantages of low-toxicity, earth abundant, and large potential for high photovoltaic performance; energy band gap tunability and high absorption coefficient are suitable for solar cell devices. It was reported that the theoretical conversion efficiency of CZTS-based thin-film solar cells is estimated to be 32.2%. Up to now, the best power conversion efficiency of 12.6% for CZTSSe solar cell has been reported based on hydrazine solution process by spin coating. Here, we introduce the structural, electrical and optical properties of Kesterite CZTSSe and some experimental results from DIGST. In particular, the expected formation mechanism about the voids and the secondary phase in the absorber layer exhibiting best efficiency in DIGST will be discussed based on the liquid Sn movement and Kirkendall effect; our CZTSSe absorber layers were synthesized by the sulfor-selenization of metal precursors (Sn/Cu/Zn) deposited sequentially via magnetron sputtering on Mo-coated soda-lime glass. This work is supported by the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science and ICT, KOREA (2016M1A2A2936781) and the Korea Institute of Energy Technology Evaluation and Planning(KETEP) and the Ministry of Trade, Industry & Energy(MOTIE) of the Republic of Korea (No. 20173010012980) |
| 저자 | Se-Yun Kim1, Dae-Ho Son2, Young-Ill Kim1, Dong-Hwan Jeon2, Sang-Ju Lee1, Si-Nae Park2, Seunghyun Kim1, Sammi Kim2, Kwangseok Ahn1, Dae-Kue Hwang2, Kee-Jeong Yang1, Dae-Hwan Kim2, Jin-Kyu Kang1 |
| 소속 | 1Convergence Research Center for Solar Energy Technology, 2DGIST |
| 키워드 | Liquid Sn; Kirkendall effect; Void; secondary phase; metal precursor; CZTSSe |
