Electron-Rotor Interaction in Organic-Inorganic Lead Iodide Perovskites Discovered by Isotope Effects

Kai Zhu; Mengjin Yang; Matthew Beard; Jue Gong; Xiangchao Ma; Richard Schaller; Gang Liu; Lingping Kong; Michael Lesslie; Ying Dai; Baibiao Huang; Tao Xu; Ye Yang

doi:10.1021/acs.jpclett.6b01199

Electron-Rotor Interaction in Organic-Inorganic Lead Iodide Perovskites Discovered by Isotope Effects

Kai Zhu, Mengjin Yang, Matthew Beard, Jue Gong, Xiangchao Ma, Richard Schaller, Gang Liu, Lingping Kong, Michael Lesslie, Ying Dai, Baibiao Huang, Tao Xu, Ye Yang

Research output: Contribution to journal › Article › peer-review

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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.

Original language	American English
Pages (from-to)	2879-2887
Number of pages	9
Journal	Journal of Physical Chemistry Letters
Volume	7
Issue number	15
DOIs	https://doi.org/10.1021/acs.jpclett.6b01199 https://doi.org/10.1021/acs.jpclett.6b01199
State	Published - 4 Aug 2016

Bibliographical note

Publisher Copyright:
© 2016 American Chemical Society.

NREL Publication Number

NREL/JA-5900-66054

Keywords

isotope effects
organic-inorganic
perovskite
solar-photochemistry

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Zhu, K., Yang, M., Beard, M., Gong, J., Ma, X., Schaller, R., Liu, G., Kong, L., Lesslie, M., Dai, Y., Huang, B., Xu, T., & Yang, Y. (2016). Electron-Rotor Interaction in Organic-Inorganic Lead Iodide Perovskites Discovered by Isotope Effects. Journal of Physical Chemistry Letters, 7(15), 2879-2887. https://doi.org/10.1021/acs.jpclett.6b01199, https://doi.org/10.1021/acs.jpclett.6b01199

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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.",

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author = "Kai Zhu and Mengjin Yang and Matthew Beard and Jue Gong and Xiangchao Ma and Richard Schaller and Gang Liu and Lingping Kong and Michael Lesslie and Ying Dai and Baibiao Huang and Tao Xu and Ye Yang",

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Zhu, K, Yang, M, Beard, M, Gong, J, Ma, X, Schaller, R, Liu, G, Kong, L, Lesslie, M, Dai, Y, Huang, B, Xu, T & Yang, Y 2016, 'Electron-Rotor Interaction in Organic-Inorganic Lead Iodide Perovskites Discovered by Isotope Effects', Journal of Physical Chemistry Letters, vol. 7, no. 15, pp. 2879-2887. https://doi.org/10.1021/acs.jpclett.6b01199, https://doi.org/10.1021/acs.jpclett.6b01199

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T1 - Electron-Rotor Interaction in Organic-Inorganic Lead Iodide Perovskites Discovered by Isotope Effects

AU - Zhu, Kai

AU - Yang, Mengjin

AU - Beard, Matthew

AU - Gong, Jue

AU - Ma, Xiangchao

AU - Schaller, Richard

AU - Liu, Gang

AU - Kong, Lingping

AU - Lesslie, Michael

AU - Dai, Ying

AU - Huang, Baibiao

AU - Xu, Tao

AU - Yang, Ye

PY - 2016/8/4

Y1 - 2016/8/4

N2 - 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.

AB - 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.

KW - isotope effects

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ER -

Electron-Rotor Interaction in Organic-Inorganic Lead Iodide Perovskites Discovered by Isotope Effects

Abstract

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Keywords

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