MAPbCl3-Mediated Decomposition Process to Tune Cl/PbI2 Distribution in MAPbI3 Films,ACS Energy Letters

当前位置： X-MOL 学术 › ACS Energy Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

MAPbCl3-Mediated Decomposition Process to Tune Cl/PbI2 Distribution in MAPbI3 Films
ACS Energy Letters ( IF 19.3 ) Pub Date : 2018-07-05 00:00:00 , DOI: 10.1021/acsenergylett.8b00837
Cuiping Zhang _{1,

2} , Zhipeng Li _{1,

2} , Juan Liu ₂ , Yunchuan Xin ₁ , Zhipeng Shao ₁ , Guanglei Cui ₁ , Shuping Pang ₁

Affiliation

Various methods have been developed to optimize the active layer of perovskite solar cells. To date, the introduction of excess PbI₂ and chlorine doping are two typical means. Herein, an ion exchange–decomposition process was designed to combine these two approaches. In this process, the I–Cl exchange and MACl sublimation occurred simultaneously at elevated temperature, resulting in a PbI₂-excess, Cl-doped perovskite film. This combined strategy could guarantee that as much chlorine as possible was doped into the perovskite crystal lattice, which enables the production of perovskite films with obviously reduced defect density and enhanced carrier diffusion length. Strikingly, the power conversion efficiency of the device is boosted from 17.17% to 20.15%.

中文翻译：

MAPbCl ₃介导的分解过程，用于调节MAPbI ₃膜中Cl / PbI _2的分布

已经开发出各种方法来优化钙钛矿太阳能电池的活性层。迄今为止，引入过量的PbI ₂和氯掺杂是两种典型的方法。在本文中，设计了一种离子交换分解过程来结合这两种方法。在此过程中，I–Cl交换和MACl升华在高温下同时发生，从而导致PbI _2-过量，Cl掺杂的钙钛矿膜。这种组合策略可以确保将尽可能多的氯掺杂到钙钛矿晶格中，从而可以生产出明显降低缺陷密度和增加载流子扩散长度的钙钛矿薄膜。令人惊讶的是，该设备的功率转换效率从17.17％提高到20.15％。

更新日期：2018-07-05

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11