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(H2dabco)[Na(BF4)3]: an ABX3-type inorganic-organic hybrid perovskite compound with dielectric switching above room-temperature

Abstract

The ABX3-type inorganic-organic hybrid perovskite (H2dabco)[Na(BF4)3] (H2dabco = 1,4-diazabicyclo[2.2.2]octane cation, 1) undergoes a static-to-dynamic phase transition at 403/386 K (heating/cooling), respectively. Variable-temperature single crystal structure analysis reveals that the H2dabco cation and/or BF4ˉ bridging ligand undergo disordering. Dielectric measurement shows a typical switchable dielectric transition between high- and low- dielectric state during the phase transition. Notably, reversibility of dielectric switching property of 1 was also identified. These excellent switching characteristics of 1, making it a type of switchable dielectric material.

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Publication details

The article was received on 16 Sep 2019, accepted on 23 Oct 2019 and first published on 23 Oct 2019


Article type: Communication
DOI: 10.1039/C9CE01454C
CrystEngComm, 2019, Accepted Manuscript

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    (H2dabco)[Na(BF4)3]: an ABX3-type inorganic-organic hybrid perovskite compound with dielectric switching above room-temperature

    L. Ye, Z. Gong, C. Shi, J. Ma, H. Liang, F. Qi, D. E, C. Wang, Y. Zhang and H. Ye, CrystEngComm, 2019, Accepted Manuscript , DOI: 10.1039/C9CE01454C

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