Resolving multiple emissions of zero-dimensional heterometallic halide hybrid via pressure-triggered antenna effect

Autor:	Xinmiao Meng, Lin Wei, Min Wu, Aisen Li, Lei Li, Kai Wang, Qian Li
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	Metal halide self-trapped exciton emission high pressure metal-halogen cluster Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 12, Iss 6, Pp 417-424 (2024)
Druh dokumentu:	article
ISSN:	21663831 2166-3831
DOI:	10.1080/21663831.2024.2338828
Popis:	Zero-dimensional heterometallic halide hybrids have emerged as multifunctional emitters, due to their multiple emission features. Herein, high pressure is employed to regulate the multiple emissions of (C9NH20)9[Pb3Br11](MnBr4)2. Pressure-triggered rigidness of [Pb3Br11]5- alters the emission equilibrium of STEs, generating a new blue-shifted STE emission. Meanwhile, [MnBr4]2- contraction promotes the confinement effect to increase the 4D-6A1 transition efficiency. Notably, [Pb3Br11]5- could act as ‘antenna' to enhance the Mn2+ emission with blocked back-energy transfer. It indicates that enough incident energy could excite the STE emission and 4D-6A1 transitions simultaneously, which clarifies the conventional understanding of the emission origin at ambient conditions.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/4aeb2cb4a29f4be5b09868b8e4199742 Zobrazit plný text záznamu View record in DOAJ