In:
Dalton Transactions, Royal Society of Chemistry (RSC), Vol. 52, No. 4 ( 2023), p. 955-961
Kurzfassung:
Phase change materials (PCMs) have drawn increasing attention for their promising applications in thermal switches, data communication, and energy storage. Because of the complexity of the interactions between molecules, it is still a challenge to design PCMs with a desired high phase transition temperature ( T c ). In this study, a one-dimensional hybrid perovskite of (TEACCl)PbBr 3 (1, TEACCl = Et 3 NCH 2 Cl) was successfully designed and synthesized with a T c = 390 K. Disordering of TEACCl + on the heating process is the origin of the structural phase transition of 1 from the P 2 1 / c to P 6 3 / mmc structure. It is noted that the phase transition is associated with an excellent switchable dielectric property, which indicates that 1 has the potential to be applied to sensor equipment. After calculation, 1 is an infrequent indirect bandgap semiconductor with an energy gap of 3.57 eV. Moreover, 1 exhibits strong red fluorescence under irradiation of UV light. This work will provide guidance for designing high T c switching materials.
Materialart:
Online-Ressource
ISSN:
1477-9226
,
1477-9234
Sprache:
Englisch
Verlag:
Royal Society of Chemistry (RSC)
Publikationsdatum:
2023
ZDB Id:
1472887-4
