Component-controllable Synthesis of Stable Planar-structure Perovskite CH3NH3Pb(I1-xBrx</ i>)3 Thin Films

作者：Liu, Caichi; Zhang, Xin; Chu, Yixia; Liang, Limin; Li, Shiyun; Hao, Qiuyan^*; Liu, Hui^*

来源：Chemistry Letters, 2017, 46(11): 1683-1686.

DOI：10.1246/cl.170779

• Perovskite solar cell
• Perovskite film
• Vapor-assisted solution process

The pure-phase Br-doped CH3NH3PbI3 films with a planar structure have been fabricated by evaporating a mixed powder with different proportions of CH3NH3I and CH3NH3Br, and the component-controllable CH3NH3Pb(I1-xBrx)(3) thin films can be successfully obtained. The study results indicated that the component change in CH3NH3Pb(I1-xBrx)(3) films not only affects the color and band gaps, but also influences the stability of the perovskite films. When the Br content in CH3NH3Pb(I1-xBrx)(3) films reaches 0.5, the perovskite films display an excellent stability. We demonstrate efficient solar cells exhibiting 6.8% power conversion efficiency under AM 1.5G illumination.

• 出版日期2017-9
• 单位河北工业大学