Improved p-i-n MAPbI3 perovskite solar cells via the interface defect density suppression by PEABr passivation

Chengyi Duan; Jun Dai

doi:10.1364/oe.471489

journal article Sep 29, 2022

Improved p-i-n MAPbI3 perovskite solar cells via the interface defect density suppression by PEABr passivation

Chengyi Duan Jun Dai

Optics Express Vol. 30 No. 21 pp. 38104 · Optica Publishing Group

View at Publisher Save 10.1364/oe.471489

Abstract

Organic-inorganic hybrid perovskite solar cells (PSCs) are promising candidates for next-generation photovoltaics due to their excellent optoelectronic properties and process compatibility. In this report, numerical simulations show the effect of perovskite surface defect density on the inverted MAPbI3 perovskite device. The Phenethylammonium bromide (PEABr) is introduced to passivate the MAPbI3 layer surface of the perovskite solar cell devices, PEA+ diffuses into the grain boundaries of the 3D perovskite to form 2D/3D hybrid structure during the thermal annealing process, thus improve the surface morphology and decrease the interface defects between MAPbI3 layer and PCBM layer. The power conversion efficiency (PCE) of the PSCs increased from 17.95% to 19.24% after PEABr treatment. In addition, the 2D/3D hybrid structure can also hinder the intrusion of water and oxygen, the stability of perovskite devices has been greatly improved.

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Metrics

30

Citations

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References

Details

Published: Sep 29, 2022
Vol/Issue: 30(21)
Pages: 38104
License: View

Authors

C

Chengyi Duan

Jiangsu University of Science and Technology

J

Jun Dai

Jiangsu University of Science and Technology

Funding

National Natural Science Foundation of China Award: 11874185

Cite This Article

Chengyi Duan, Jun Dai (2022). Improved p-i-n MAPbI3 perovskite solar cells via the interface defect density suppression by PEABr passivation. Optics Express, 30(21), 38104. https://doi.org/10.1364/oe.471489

Improved p-i-n MAPbI3 perovskite solar cells via the interface defect density suppression by PEABr passivation

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