期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 7, 期 41, 页码 23895-23903出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ta01947b
关键词
-
资金
- National Key Research and Development Program of China [2017 YFA0206600]
- National Natural Science Foundation of China (NSFC) [21773045]
- Chinese Academy of Sciences
- NSFC [21674006]
- 111 Project [B14009]
The characteristics of perovskite solar cells (PSC) are affected by interface traps. In this work, we introduce an interfacial modifier based on polyaspartic acid sodium (PASP) that is incorporated between a methylammonium lead iodide (MAPbI(3)) photo-absorber and P3CT-Na hole transporting layer. PASP contains a large number of -COO- anions and Na+ cations, thus enabling a strong chelating cooperation for metal polyvalent ions. The incorporated PASP leads to an effective passivation of the surface traps originating from Pb2+ and I- in MAPbI(3) and control over the crystallization of MAPbI(3) with slightly enlarged grains. The combined benefits with the introduced PASP enable boosting the power conversion efficiency to 20.05% with an impressive FF of 82.20% in MAPbI(3) based p-i-n PSCs.
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