Perovskite Chalcogenides with Optimal Bandgap and Desired Optical Absorption for Photovoltaic Devices

Ming-Gang Ju; Jun Dai; Liang Ma; Xiao Cheng Zeng

doi:10.1002/aenm.201700216

Perovskite Chalcogenides with Optimal Bandgap and Desired Optical Absorption for Photovoltaic Devices

Ming-Gang Ju, Jun Dai, Liang Ma, Xiao Cheng Zeng^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

178 Citations (Scopus)

Abstract

Solar cells with organic-inorganic lead halide perovskites have achieved great success and their power conversion efficiency (PCE) has reached to 22.1%. To address the toxicology of lead element and some stability issues associated with the organic-inorganic lead halide perovskites, inorganic lead-free perovskites have gained more attentions from the photovoltaic research community. Herein, a series of chalcogenide perovskites are proposed as optical absorber materials for thin-film solar cells. SrSnSe₃ and SrSnS₃ are predicted to be direct bandgap semiconductors with the bandgap value being within the optimal range of 0.9–1.6 eV. Both SrSnSe₃ and SrSnS₃ not only exhibit good optical absorption properties and carrier mobility, but also possess flexible bandgaps that can be continuously tuned within the grange of 0.9–1.6 eV via the element-mixing strategy, thereby render both perovskites as promising candidates for photovoltaic applications.

Original language	English
Journal	Advanced Energy Materials
Volume	7
Issue number	18
DOIs	https://doi.org/10.1002/aenm.201700216
Publication status	Published - 20 Sept 2017
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

chalcogenide perovskites
density functional theory
direct and optimal bandgap
optoelectronics
solar cells

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title = "Perovskite Chalcogenides with Optimal Bandgap and Desired Optical Absorption for Photovoltaic Devices",

abstract = "Solar cells with organic-inorganic lead halide perovskites have achieved great success and their power conversion efficiency (PCE) has reached to 22.1%. To address the toxicology of lead element and some stability issues associated with the organic-inorganic lead halide perovskites, inorganic lead-free perovskites have gained more attentions from the photovoltaic research community. Herein, a series of chalcogenide perovskites are proposed as optical absorber materials for thin-film solar cells. SrSnSe3 and SrSnS3 are predicted to be direct bandgap semiconductors with the bandgap value being within the optimal range of 0.9–1.6 eV. Both SrSnSe3 and SrSnS3 not only exhibit good optical absorption properties and carrier mobility, but also possess flexible bandgaps that can be continuously tuned within the grange of 0.9–1.6 eV via the element-mixing strategy, thereby render both perovskites as promising candidates for photovoltaic applications.",

keywords = "chalcogenide perovskites, density functional theory, direct and optimal bandgap, optoelectronics, solar cells",

author = "Ming-Gang Ju and Jun Dai and Liang Ma and Zeng, {Xiao Cheng}",

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AU - Ju, Ming-Gang

AU - Dai, Jun

AU - Ma, Liang

AU - Zeng, Xiao Cheng

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2017/9/20

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N2 - Solar cells with organic-inorganic lead halide perovskites have achieved great success and their power conversion efficiency (PCE) has reached to 22.1%. To address the toxicology of lead element and some stability issues associated with the organic-inorganic lead halide perovskites, inorganic lead-free perovskites have gained more attentions from the photovoltaic research community. Herein, a series of chalcogenide perovskites are proposed as optical absorber materials for thin-film solar cells. SrSnSe3 and SrSnS3 are predicted to be direct bandgap semiconductors with the bandgap value being within the optimal range of 0.9–1.6 eV. Both SrSnSe3 and SrSnS3 not only exhibit good optical absorption properties and carrier mobility, but also possess flexible bandgaps that can be continuously tuned within the grange of 0.9–1.6 eV via the element-mixing strategy, thereby render both perovskites as promising candidates for photovoltaic applications.

AB - Solar cells with organic-inorganic lead halide perovskites have achieved great success and their power conversion efficiency (PCE) has reached to 22.1%. To address the toxicology of lead element and some stability issues associated with the organic-inorganic lead halide perovskites, inorganic lead-free perovskites have gained more attentions from the photovoltaic research community. Herein, a series of chalcogenide perovskites are proposed as optical absorber materials for thin-film solar cells. SrSnSe3 and SrSnS3 are predicted to be direct bandgap semiconductors with the bandgap value being within the optimal range of 0.9–1.6 eV. Both SrSnSe3 and SrSnS3 not only exhibit good optical absorption properties and carrier mobility, but also possess flexible bandgaps that can be continuously tuned within the grange of 0.9–1.6 eV via the element-mixing strategy, thereby render both perovskites as promising candidates for photovoltaic applications.

KW - chalcogenide perovskites

KW - density functional theory

KW - direct and optimal bandgap

KW - optoelectronics

KW - solar cells

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DO - 10.1002/aenm.201700216

M3 - RGC 21 - Publication in refereed journal

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VL - 7

JO - Advanced Energy Materials

JF - Advanced Energy Materials

IS - 18

ER -

Perovskite Chalcogenides with Optimal Bandgap and Desired Optical Absorption for Photovoltaic Devices

Abstract

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Research Keywords

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