Citation: Ting WU, Kun DING, Meng-Meng LUN, Tie ZHANG, Yi ZHANG, Da-Wei FU. Dual Functions of Phase-Transition Dielectric and Blue-White Photoluminescence in a Hybrid Crystal (bempy)2CdBr4[J]. Chinese Journal of Inorganic Chemistry, ;2022, 38(10): 2083-2090. doi: 10.11862/CJIC.2022.200 shu

Dual Functions of Phase-Transition Dielectric and Blue-White Photoluminescence in a Hybrid Crystal (bempy)2CdBr4

Figures(6)

  • We have successfully synthesized two organic-inorganic hybrid crystals, which are (bempy)Br (1) and (bempy)2CdBr4 (2), based on bempy (bempy=1-bromoethyl-1-methylpyrrolidinium) by employing easily disordered amines. Structural phase transitions analysis, dielectric phase transition measurements, and blue-white fluorescence spectroscopy measurements were performed on them. It is notable that, no reversible phase transition was observed in compound 1, and compound 2 exhibited high-temperature dielectric phase transition anomalies at around 357 K by differential scanning calorimetry and dielectric measurements. Both compounds showed blue-white photoluminescence with one emission peak at 538 nm for compound 1 and two emission peaks at 547 and 750 nm for compound 2. Significantly, compound 2 possesses dual functions of dielectric phase transition and blue-white photoluminescence.
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