標題: | Strategies To Improve Performance and Stability for Tin-Based Perovskite Solar Cells |
作者: | Diau, Eric Wei-Guang Jokar, Efat Rameez, Mohammad 交大名義發表 應用化學系 應用化學系分子科學碩博班 National Chiao Tung University Department of Applied Chemistry Institute of Molecular science |
公開日期: | 1-八月-2019 |
摘要: | This Perspective reviews the developments of tin-based perovskite solar cells (PSCs) during the period 2014-2019 based on two organic cations (methylammonium vs formamidinium) and two device architectures (normal vs inverted) with the strategies of using cocations and coadditives. Unlike their lead-based analogues, tin-based PSCs suffer from the problems of Sn2+/Sn4+ oxidation and film formation. The current best cell is based on an inverted planar FASnI(3) device with guanidinium as cocation, SnF2 as additive, and ethyl-enediammonium iodide as coadditive, which attains record efficiency near 10% with great stability. The device stability and performance might be further improved upon introducing bulky organic cations with a suitable coadditive to form a hybrid 2D/3D crystal structure. Considering the theoretical limit on device efficiency for tin-based PSCs to be, similar to 33%, there is much room for further performance improvement if the problems can be resolved according to the approaches discussed in this Perspective. |
URI: | http://dx.doi.org/10.1021/acsenergylett.9b01179 http://hdl.handle.net/11536/152625 |
ISSN: | 2380-8195 |
DOI: | 10.1021/acsenergylett.9b01179 |
期刊: | ACS ENERGY LETTERS |
Volume: | 4 |
Issue: | 8 |
起始頁: | 1930 |
結束頁: | 1937 |
顯示於類別: | 期刊論文 |