Phase transition and ionic conduction enhancement induced by co-doping of LiI and MnI2 in a one-dimensional lead iodide perovskite

Ya-Ru Kong; Wei Qiu; Guo-Qin Zhang; Dong-Sheng Shao; Xiao-Zu Wang; Hong-Bin Luo; Xue-Wei Pan; Xiao-Ming Ren

doi:10.1039/D3CC02099A

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Phase transition and ionic conduction enhancement induced by co-doping of LiI and MnI₂ in a one-dimensional lead iodide perovskite†

Ya-Ru Kong,^a Wei Qiu,

^b Guo-Qin Zhang,^a Dong-Sheng Shao,^a Xiao-Zu Wang,^b Hong-Bin Luo,

*^a Xue-Wei Pan^a and Xiao-Ming Ren

*^acd

Author affiliations

* Corresponding authors

^a State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
E-mail: hbluo@njtech.edu.cn, xmren@njtech.edu.cn

^b College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, P. R. China

^c College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, P. R. China

^d State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China

Abstract

Herein, we demonstrated the unique advantage of a mechanochemical reaction to prepare a salt with hard and soft acid and base ions concurrently by solution synthesis owing to the soft acid preferring to combine with the soft base and vice versa. We prepared Bu₄N_1−xLi_xMn_xPb_1−xI₃ (x = 0.011−0.14) by mechanochemical synthesis. The doping induced a structural phase transition at ∼342 K and much enhancement of ionic conduction above 342 K for all co-doped hybrids regarding Bu₄NPbI₃ because of the voids around the Mn²⁺/Li⁺ ions by doping.

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Article information

DOI: https://doi.org/10.1039/D3CC02099A
Article type: Communication
Submitted: 29 Apr 2023
Accepted: 11 Jun 2023
First published: 12 Jun 2023

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Chem. Commun., 2023,59, 8436-8439

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Phase transition and ionic conduction enhancement induced by co-doping of LiI and MnI₂ in a one-dimensional lead iodide perovskite

Y. Kong, W. Qiu, G. Zhang, D. Shao, X. Wang, H. Luo, X. Pan and X. Ren, Chem. Commun., 2023, 59, 8436 DOI: 10.1039/D3CC02099A

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Chemical Communications