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Title: Electron–Rotor Interaction in Organic–Inorganic Lead Iodide Perovskites Discovered by Isotope Effects

Abstract

We report on the carrier-rotor coupling effect in perovskite organic-inorganic hybrid lead iodide (CH3NH3PbI3) compounds discovered by isotope effects. Deuterated organic-inorganic perovskite compounds including CH3ND3PbI3, CD3NH3PbI3, and CD3ND3PbI3 were synthesized. Devices made from regular CH3NH3PbI3 and deuterated CH3ND3PbI3 exhibit comparable performance in band gap, current-voltage, carrier mobility, and power conversion efficiency. However, a time-resolved photoluminescence (TRPL) study reveals that CH3NH3PbI3 exhibits notably longer carrier lifetime than that of CH3ND3PbI3, in both thin-film and single crystal formats. Furthermore, the comparison in carrier lifetime between CD3NH3PbI3 and CH3ND3PbI3 single crystals suggests that vibrational modes in methylammonium (MA(+)) have little impact on carrier lifetime. In contrast, the fully deuterated compound CD3ND3PbI3 reconfirmed the trend of decreasing carrier lifetime upon the increasing moment of inertia of cationic MA(+). Polaron model elucidates the electron-rotor interaction.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1367173
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Physical Chemistry Letters; Journal Volume: 7; Journal Issue: 15
Country of Publication:
United States
Language:
English

Citation Formats

Gong, Jue, Yang, Mengjin, Ma, Xiangchao, Schaller, Richard D., Liu, Gang, Kong, Lingping, Yang, Ye, Beard, Matthew C., Lesslie, Michael, Dai, Ying, Huang, Baibiao, Zhu, Kai, and Xu, Tao. Electron–Rotor Interaction in Organic–Inorganic Lead Iodide Perovskites Discovered by Isotope Effects. United States: N. p., 2016. Web. doi:10.1021/acs.jpclett.6b01199.
Gong, Jue, Yang, Mengjin, Ma, Xiangchao, Schaller, Richard D., Liu, Gang, Kong, Lingping, Yang, Ye, Beard, Matthew C., Lesslie, Michael, Dai, Ying, Huang, Baibiao, Zhu, Kai, & Xu, Tao. Electron–Rotor Interaction in Organic–Inorganic Lead Iodide Perovskites Discovered by Isotope Effects. United States. doi:10.1021/acs.jpclett.6b01199.
Gong, Jue, Yang, Mengjin, Ma, Xiangchao, Schaller, Richard D., Liu, Gang, Kong, Lingping, Yang, Ye, Beard, Matthew C., Lesslie, Michael, Dai, Ying, Huang, Baibiao, Zhu, Kai, and Xu, Tao. Thu . "Electron–Rotor Interaction in Organic–Inorganic Lead Iodide Perovskites Discovered by Isotope Effects". United States. doi:10.1021/acs.jpclett.6b01199.
@article{osti_1367173,
title = {Electron–Rotor Interaction in Organic–Inorganic Lead Iodide Perovskites Discovered by Isotope Effects},
author = {Gong, Jue and Yang, Mengjin and Ma, Xiangchao and Schaller, Richard D. and Liu, Gang and Kong, Lingping and Yang, Ye and Beard, Matthew C. and Lesslie, Michael and Dai, Ying and Huang, Baibiao and Zhu, Kai and Xu, Tao},
abstractNote = {We report on the carrier-rotor coupling effect in perovskite organic-inorganic hybrid lead iodide (CH3NH3PbI3) compounds discovered by isotope effects. Deuterated organic-inorganic perovskite compounds including CH3ND3PbI3, CD3NH3PbI3, and CD3ND3PbI3 were synthesized. Devices made from regular CH3NH3PbI3 and deuterated CH3ND3PbI3 exhibit comparable performance in band gap, current-voltage, carrier mobility, and power conversion efficiency. However, a time-resolved photoluminescence (TRPL) study reveals that CH3NH3PbI3 exhibits notably longer carrier lifetime than that of CH3ND3PbI3, in both thin-film and single crystal formats. Furthermore, the comparison in carrier lifetime between CD3NH3PbI3 and CH3ND3PbI3 single crystals suggests that vibrational modes in methylammonium (MA(+)) have little impact on carrier lifetime. In contrast, the fully deuterated compound CD3ND3PbI3 reconfirmed the trend of decreasing carrier lifetime upon the increasing moment of inertia of cationic MA(+). Polaron model elucidates the electron-rotor interaction.},
doi = {10.1021/acs.jpclett.6b01199},
journal = {Journal of Physical Chemistry Letters},
number = 15,
volume = 7,
place = {United States},
year = {Thu Aug 04 00:00:00 EDT 2016},
month = {Thu Aug 04 00:00:00 EDT 2016}
}