Holmium rare earth metal ion incorporated and ambient-air processed all-inorganic ?-CsPbI2.5Br0.5 perovskite solar cells yielding high efficiency and stable performance

被引：8

作者：

Patil, Jyoti V. ^{[1
,2
]}

Mali, Sawanta S. ^{[2
]}

Hong, Chang Kook ^{[1
,2
]}

机构：

[1] Chonnam Natl Univ, Optoelect Convergence Res Ctr, Sch Chem Engn, Gwangju 61186, South Korea

[2] Chonnam Natl Univ, Polymer Energy Mat Lab, Sch Chem Engn, Gwangju 61186, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2023年 / 11卷 / 39期

基金：

新加坡国家研究基金会;

关键词：

PROMOTED EFFICIENCY;

D O I：

10.1039/d3ta03042c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cesium lead halide-based all inorganic perovskite solar cells (IPVSCs) are considered promising absorbers for photovoltaic applications owing to their exceptional thermal stability and suitability towards single, monolithic tandem and triple junction perovskite/perovskite tandem solar cells. However, their device performance and phase stability lag behind those of conventional organic-inorganic hybrid perovskite solar cells (HPVSCs). Here, we successfully incorporated different quantities of holmium (Ho3+) rare earth (RE) metal ions into the ?-CsPbI2.5Br0.5 perovskite. A noticeable improvement in power conversion efficiency (PCE) from 17.19% (?-CsPbI2.5Br0.5) to 19.59% was attained for the 3% HoCl3-based IPVSC device. Furthermore, our ambient-air processed 3% HoCl3-based device maintains >95% efficiency over 140 h at 30% relative humidity. This investigation shows that the RE metal ion incorporation is an effective approach for stabilizing and improving the device efficiency simultaneously.

引用

页码：21312 / 21321

页数：10