Surface Roughness Dependent Linear Electric Field Effects on the Exciton Absorption of Methylammonium Lead Triiodide Perovskite Films DOI Creative Commons
Sudhakar Narra,

Yu-Ling Chung,

Shailesh Rana

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 26, 2024

Language: Английский

A-Site Cations Impact on Nonradiative Recombination, Mobility, and Defect Dynamics in Sn-Based Perovskites DOI
Zhaosheng Zhang, Sijia Liu, Qing Xiong

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(30), P. 7659 - 7666

Published: July 22, 2024

Sn-based perovskites with different cations in the A-site exhibit distinct electronic structures and dynamic properties. By utilizing time-dependent density functional theory nonadiabatic molecular dynamics, we demonstrate that larger FA decrease wave function overlap between initial final states slow down nuclear motion. In case of FASnI3, this alteration decreases coupling increases nonradiative electron-hole recombination time by 130% 76%, respectively, compared to CsSnI3 MASnI3 (CH3NH3SnI3). Furthermore, modification significantly improves electron mobility changes properties defects FASnI3 (HC(NH2)2SnI3), which achieves higher through a polar optical phonon-dominated scattering mechanism exhibits defect formation energy migration barriers due increased steric hindrance, relative MASnI3. These results emphasize critical cation substitution controlling mobility, characteristics provide theoretical insights for advancement novel lead-free perovskite materials.

Language: Английский

Citations

2
Intensity‐Modulated Photocurrent and Photovoltage Spectroscopy for Characterizing Charge Dynamics in Solar Cells DOI
Yanlong Wang,

Haofeng Zheng,

Jin Xiao

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 23, 2024

Abstract Intensity‐modulated photocurrent and photovoltage spectroscopy (IMPS/IMVS) are powerful tools in optoelectronics such as photoelectrochemistry photovoltaics, they demonstrate distinct charge dynamic processes at different frequencies. Unlike the material characterization techniques, IMPS/IMVS offer an approach for investigating behavior of carriers ions from device perspective. This review examines both theories experiments to understand intricate dynamics solar cells with various materials structures. To accommodate types cells, four primary theoretical models including rate constant model, drift‐diffusion equivalent circuit distribution relaxation times, evaluated detail. In future, incorporation other time‐domain frequency‐domain methods, along imaging can significantly facilitate enhanced convenience, spatial dimensions, accuracy.

Language: Английский

Citations

2
Towards highly efficient and stable perovskite solar cells: suppressing ion migration by inorganic boric acid stabilizer DOI
Kun Gao,

Yingping Fan,

Dachang Liu

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 133, P. 110473 - 110473

Published: Nov. 13, 2024

Language: Английский

Citations

1
Interface Enhancement Effect: Sno2/Cspbbr3 Hetero-Junction for Improve Nuclear Radiation Detection Performance and Stability DOI
Mingzhi Zhang, C.H. Huang, Guotu Xia

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Surface Roughness Dependent Linear Electric Field Effects on the Exciton Absorption of Methylammonium Lead Triiodide Perovskite Films DOI Creative Commons
Sudhakar Narra,

Yu-Ling Chung,

Shailesh Rana

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 26, 2024

Language: Английский

Citations

0