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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-431 |
| Subject |
Fabrication of Tin Halide Solar Cell Using Pseudohalide Materials |
| Authors |
Jihae Koh, Sung-Jin Kim1,*
Department of Chemistry and Nano Science, Ewha Womans University, Korea
1Department of Chemistry, Ewha Womans University, Korea
|
| Abstract |
Tin based perovskite solar cells (PSC) are a promising candidate as one of the next-generation photovoltaic devices because of their low-toxicity. However, since Sn2+ is easily oxidized to Sn4+, it is unstable. To solve this problem, we use thiocyanate ions (SCN-) for encapsulation of SnI6 octaheral unit. The organic thiocyanate anions replace iodides in FASnI3, and produce stable active materials for solar cell. We used SnS and SnS2 as interfacial layers between TiO2 and the active material. These chalcogenide interface layers provide a more efficient electron transfer path and lower interface recombination than direct contact with TiO2. |
| E-mail |
kjihye95@naver.com |
|
121st General Meeting of the KCS