Interface- and Temperature-Sensitive Linear Electric Field Effects on Exciton Absorption of CH3NH3PbI3 Perovskite Films

Rana, Shailesh; Awasthi, Kamlesh; Diau, Eric Wei-Guang; Ohta, Nobuhiro

doi:10.1021/acs.jpcc.3c05603

J. Phys. Chem. C

2023

DOI: 10.1021/acs.jpcc.3c05603

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Interface- and Temperature-Sensitive Linear Electric Field Effects on Exciton Absorption of CH₃NH₃PbI₃ Perovskite Films

Shailesh Rana,

Kamlesh Awasthi,

Eric Wei-Guang Diau

et al.

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2024

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Surface Roughness Dependent Linear Electric Field Effects on the Exciton Absorption of Methylammonium Lead Triiodide Perovskite Films

Narra,

Chung,

Rana

et al. 2024

J. Phys. Chem. C

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Perovskite solar cells garnered commercial interest due to their device's impressive photon conversion efficiencies and improvements in longterm stabilities. The critical indicators of high-quality perovskite solar cells are often associated with morphological characteristics, such as grain size, compact packing, surface smoothness, and formation of suitable interfaces with charge transport layers. In the present study, the linear electroabsorption spectral signals emanating from the interface of methylammonium lead triiodide perovskite films grown on different electrodes and charge transport layers are shown to be sensitive to surface roughness. The polymeric hole transporting layers PEDOT:PSS on FTO/ITO substrates as underlayers were shown to produce smoother films with weaker linear electroabsorption signals compared with the tin oxide electron transporting layer on the FTO substrate as an underlayer, thereby highlighting the potential of linear electroabsorption spectroscopy to screen the quality of perovskite solar cells.

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Surface Roughness Dependent Linear Electric Field Effects on the Exciton Absorption of Methylammonium Lead Triiodide Perovskite Films

Narra,

Chung,

Rana

et al. 2024

J. Phys. Chem. C

View full text Add to dashboard Cite

show abstract

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Interface- and Temperature-Sensitive Linear Electric Field Effects on Exciton Absorption of CH₃NH₃PbI₃ Perovskite Films

Cited by 1 publication

References 44 publications

Surface Roughness Dependent Linear Electric Field Effects on the Exciton Absorption of Methylammonium Lead Triiodide Perovskite Films

Surface Roughness Dependent Linear Electric Field Effects on the Exciton Absorption of Methylammonium Lead Triiodide Perovskite Films

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