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A Two‐Dimensional Hybrid Perovskite With Heat Switching Birefringence.
- Source :
-
Angewandte Chemie International Edition . 11/13/2023, Vol. 62 Issue 46, p1-7. 7p. - Publication Year :
- 2023
-
Abstract
- Birefringent crystals that can switch light polarization have important applications in optoelectronics. In the last decades, birefringence is mostly optimized by chemical strategies. Recently, switching birefringence by physical means has attracted much attention. Here, this work reports the observation of heat switching birefringence in a 2D layered hybrid halide perovskite (C2N3H4)2PbCl4 ((C2N3H4)+=1,2,4‐triazolium). This heat switching birefringence leads to a significant change in the interference color for the crystal plate under the illumination of orthogonal polarized light. Structure analyses reveal a heat dependent structure transition in (C2N3H4)2PbCl4, whose birefringence is switched by the change in the distortion degree of PbCl6 octahedron. This discovery may be beneficial to the further development of stimuli‐responsive polarization optical devices. [ABSTRACT FROM AUTHOR]
- Subjects :
- *OPTICAL polarization
*OPTICAL devices
*PEROVSKITE
*BIREFRINGENCE
*PHASE transitions
Subjects
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 62
- Issue :
- 46
- Database :
- Academic Search Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 173469610
- Full Text :
- https://doi.org/10.1002/anie.202311086