| 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 | Highly efficient and stable tandem solar cells based on halide perovskites |
| 초록 | The tandem configuration consisting of two or more solar cells is practically the only approach to overcome the Shockley-Queisser limit. From theoretical calculation shows that the combination of a top cell with a large bandgap energy (1.5~1.7 eV) and a bottom cell with a low bandgap energy (1.0~1.1 eV) can lead to a conversion efficiency higher than 30%. Given that the bandgap energy of most commercial single junction solar cells is around 1.1 eV, the perovskite solar cell with a bandgap energy around 1.6 eV must be a very promising candidate for the top cell of tandem solar cells. In this presentation, I will discuss the essential requirements for preparing highly performing perovskite top cells of tandem solar cells. Firstly, the strategies for improving the performance of the p-i-n type planar perovskite solar cell will be introduced. After a series of interfacial engineering procedures to the charge extraction layers, a conversion efficiency as high as 19% could be achieved. Secondly, strategies for fabricating transparent perovskite solar cells with a TCO top electrode layer will be discussed. Finally, some of the recent results on the highly efficient (＞ 23%) tandem solar cells incorporating the transparent perovskite top cell will be introduced. |
| 저자 | 김진영 |
| 소속 | 서울대 |
| 키워드 | <P>perovskite; tandem; photovoltaics</P> |
