A two-step route to planar perovskite cells exhibiting reduced hysteresis
- 등재 SCIE, SCOPUS
- 발행기관 AMER INST PHYSICS
- 발행년도 2015
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000114807
- 본문언어 영어
- Published As http://dx.doi.org/10.1063/1.4917238
초록/요약
A simple two-step method was used to produce efficient planar organolead halide perovskite solar cells. Films produced using solely iodine containing precursors resulted in poor morphology and failed devices, whereas addition of chlorine to the process greatly improved morphology and resulted in dense, uniform perovskite films. This process was used to produce perovskite solar cells with a fullerene-based passivation layer. The hysteresis effect, to which planar perovskite devices are otherwise prone, was greatly suppressed through the use of this interface modifier. The combined techniques resulted in perovskite solar cells having a stable efficiency exceeding 11%. This straightforward fabrication procedure holds promise in development of various optoelectronic applications of planar perovskite films. (C) 2015 AIP Publishing LLC.
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