التفاصيل البيبلوغرافية
| العنوان: |
Regulating Circularly Polarized Light Detection via Polar‐Phase Transition in Alternating Chiral‐Achiral Cations Intercalation‐Type Hybrid Perovskites. |
| المؤلفون: |
Zhu, Zeng‐Kui, Zhu, Tingting, You, Shihai, Yu, Panpan, Wu, Jianbo, Zeng, Ying, Jiang, Yuhang, Liu, Xitao, Li, Lina, Ji, Chengmin, Luo, Junhua |
| المصدر: |
Advanced Science; 2/9/2024, Vol. 11 Issue 6, p1-7, 7p |
| مصطلحات موضوعية: |
PEROVSKITE, CATIONS, ELECTRIC fields, PHASE transitions, PHOTOVOLTAIC effect, PROPYLAMINE, CHIRALITY of nuclear particles |
| مستخلص: |
Circularly polarized light (CPL) detection has wide applications in many fields, where the anisotropy factor (gIph) is an important indicator to characterize the CPL detection performance. So far, many materials with high gIph have been reported, however, the exploration of the regulation of gIph is still in its infancy. Herein, two novel alternating chiral‐achiral cations intercalation‐type chiral hybrid perovskites (CHPs), named (R/S‐1‐phenylpropylamine)(propylamine)PbBr4 (1‐R/S), exhibit above room‐temperature (RT) polar‐phase transition, which greatly regulates the gIph value. The gIph of 1‐R is 0.04 in high‐temperature phase chiral non‐polar (P212121) by applying 5 V bias, interestingly, with the temperature decrease, the gIph value in low‐temperature phase chiral polar (P21) gradually increases (0.22@360K, 0.40@340K, 0.47@320K), and finally reaches a maximum of 0.5 at RT. Such value is not only the highest among 2D CHPs to date, but presents a 12.5‐fold amplification compared with 0.04. Further, this rare phenomenon should be attributed to the built‐in electric field induced by the polar photovoltaic effect, which sheds light on further obtaining CHPs with large gIph. [ABSTRACT FROM AUTHOR] |
|
Copyright of Advanced Science is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder