期刊
IEEE JOURNAL OF PHOTOVOLTAICS
卷 7, 期 2, 页码 532-538出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOTOV.2016.2642639
关键词
Methylammonium lead iodide (MAPbI(3)); perovskite solar cells; photovoltaic (PV); stability; tetraethyl orthosilicate (TEOS)
资金
- Solar Energy Research Institute for India and the U.S. (SERIIUS)
- U.S. Department of Energy [DE AC36-08G028308]
- Government of India
- Photosynthetic Antenna Research Center, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC 0001035]
Organometallic perovskite solar cells have gained immense attention due to their rapid increase in efficiency and compatibility with low-cost fabrication methods. However, the material's instability in humid ambient conditions has remained a key challenge for the large-scale fabrication and application of such cells. In this paper, we present devices fabricated under 50% humidity with significantly improved long-term stability through three parallel approaches. First, the small molecule hole transport material, 2,2',7,7'-Tetrakis[N, N-di(4-methoxyphenyl) amino]-9,9'-spirobifluorene (spiro-MeOTAD) is replaced by a polymeric material Poly(3-hexylthiophene) (P3HT). Second, the device stability is further enhanced by increasing the thickness of the mesoporous titania scaffold. Finally, tetraethyl orthosilicate (TEOS) is used as a processing additive in the perovskite precursor solution to form an in situ protective layer. On our optimized device, a remarkable long-term device stability of more than 1200 h is achieved. X-ray diffraction patterns suggest more than 2500 h of material stability.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据