Exploring Thermochromic Behavior of Hydrated Hybrid Perovskites in Solar Cells

被引：104

作者：

Halder, Ansuman ^{[1
]}

Choudhury, Devika ^{[1
]}

Ghosh, Soham ^{[1
]}

Subbiah, Anand S. ^{[1
]}

Sarkar, Shaibal K. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Energy Sci & Engn, Mumbai 400076, Maharashtra, India

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2015年 / 6卷 / 16期

关键词：

CH3NH3PBI3; PEROVSKITE; HIGH-PERFORMANCE; STATE; HALIDE; TRANSFORMATION; DEGRADATION; EFFICIENCY; FILMS;

D O I：

10.1021/acs.jpclett.5b01426

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：

Highly reproducible and reversible thermochromic nature of dihydrated methylammonium lead iodide is found. A wide bandgap variation of the material (similar to 2 eV) is detected between room temperature and 60 degrees C under ambient condition as a result of phase transition caused by moisture absorption and desorption. In situ X-ray diffraction and Fourier transform infrared spectroscopy studies are performed to understand the mechanistic behavior during the phase transition. This thermochromic property is further explored as absorber material in mesostructured solar cells. Temperature-dependent reversible power conversion efficiency greater than 1% under standard test conditions is demonstrated; revealing its potential applicability in building integrated photovoltaics.

引用

页码：3180 / 3184

页数：5

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