The effect of moisture on the structures and properties of lead halide perovskites: a first-principles theoretical investigation

2016 ◽  
Vol 18 (33) ◽  
pp. 23174-23183 ◽  
Author(s):  
Lei Zhang ◽  
Ming-Gang Ju ◽  
WanZhen Liang
Keyword(s):  
Theoretical Investigation ◽  
First Principles ◽  
Degradation Mechanism ◽  
Perovskite Materials ◽  
Structures And Properties ◽  
Halide Perovskites ◽  
Effect Of Moisture ◽  
Lead Halide

The degradation mechanism of perovskite materials when exposed to moisture and sunlight has been fully explored.

First-principles study on the electronic and optical properties of the orthorhombic CsPbBr3 and CsPbI3 with Cmcm space group

2021 ◽  
Author(s):  
Xianhao Zhao ◽  
Tianyu Tang ◽  
Quan Xie ◽  
like gao ◽  
Limin Lu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
First Principles ◽  
Energy Conversion Efficiency ◽  
Space Group ◽  
Absorbing Materials ◽  
Halide Perovskites ◽  
Lead Halide

The cesium lead halide perovskites are regarded as effective candidates for light-absorbing materials in solar cells, which have shown excellent performances in experiments such as promising energy conversion efficiency. In...

scholarly journals Lead-Free Halide Double Perovskites: A Review of the Structural, Optical, and Stability Properties as Well as Their Viability to Replace Lead Halide Perovskites

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 667 ◽  
Author(s):  
Edson Meyer ◽  
Dorcas Mutukwa ◽  
Nyengerai Zingwe ◽  
Raymond Taziwa
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Lead Free ◽  
Double Perovskites ◽  
Stability Properties ◽  
Perovskite Materials ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Light Absorbers ◽  
Lead Halide

Perovskite solar cells employ lead halide perovskite materials as light absorbers. These perovskite materials have shown exceptional optoelectronic properties, making perovskite solar cells a fast-growing solar technology. Perovskite solar cells have achieved a record efficiency of over 20%, which has superseded the efficiency of Gräztel dye-sensitized solar cell (DSSC) technology. Even with their exceptional optical and electric properties, lead halide perovskites suffer from poor stability. They degrade when exposed to moisture, heat, and UV radiation, which has hindered their commercialization. Moreover, halide perovskite materials consist of lead, which is toxic. Thus, exposure to these materials leads to detrimental effects on human health. Halide double perovskites with A2B′B″X6 (A = Cs, MA; B′ = Bi, Sb; B″ = Cu, Ag, and X = Cl, Br, I) have been investigated as potential replacements of lead halide perovskites. This work focuses on providing a detailed review of the structural, optical, and stability properties of these proposed perovskites as well as their viability to replace lead halide perovskites. The triumphs and challenges of the proposed lead-free A2B′B″X6 double perovskites are discussed here in detail.

Experimental and first-principles investigation of Cr-driven color change in cesium lead halide perovskites

2019 ◽  
Vol 125 (22) ◽  
pp. 225705 ◽  
Author(s):  
S. Ozen ◽  
T. Guner ◽  
G. Topcu ◽  
M. Ozcan ◽  
M. M. Demir ◽  
...  
Keyword(s):  
First Principles ◽  
Color Change ◽  
Halide Perovskites ◽  
Lead Halide

First-Principles Theory Investigation on Structural and Photoelectronic Properties of Formamidinium Lead Halide Perovskites

2016 ◽  
Vol 74 (8) ◽  
pp. 689
Author(s):  
Zigang Zhao ◽  
Yongqiang Niu ◽  
Yang Zhao ◽  
Qinghua Song ◽  
Ling Xin ◽  
...  
Keyword(s):  
First Principles ◽  
Halide Perovskites ◽  
Lead Halide
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