Spectral dependence of direct and trap-mediated recombination processes in lead halide perovskites using time resolved microwave conductivity

Elucidating the decay mechanisms of photoexcited charge carriers is key to improving the efficiency of solar cells based on organo-lead halide perovskites.

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

New Journal of Chemistry ◽

10.1039/d1nj02216d ◽

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...

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Efficient ambient-air-stable solar cells with 2D–3D heterostructured butylammonium-caesium-formamidinium lead halide perovskites

Nature Energy ◽

10.1038/nenergy.2017.135 ◽

2017 ◽

Vol 2 (9) ◽

Cited By ~ 575

Author(s):

Zhiping Wang ◽

Qianqian Lin ◽

Francis P. Chmiel ◽

Nobuya Sakai ◽

Laura M. Herz ◽

...

Keyword(s):

Solar Cells ◽

Ambient Air ◽

Halide Perovskites ◽

Lead Halide

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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 ◽

10.3390/met8090667 ◽

2018 ◽

Vol 8 (9) ◽

pp. 667 ◽

Cited By ~ 24

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 Perovskite solar cells have achieved a record efficiency of over 20%, which has superseded the efficiency of Gräztel dye-sensitized solar cell (DSSC) technology.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.

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