气候变化领域集成服务门户(CCPortal): Dual-color emitting Mn2+ion doped (PEA)2PbBr4perovskite towards white light-emitting diodes

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DOI	10.1039/d0qm00478b
	Dual-color emitting Mn2+ion doped (PEA)2PbBr4perovskite towards white light-emitting diodes
	Gao X.; Shen X.; Xue D.; Li X.; Lu P.; Lu M.; Li C.; Yu W.W.; Bai X.
发表日期	2021
ISSN	20521537
起始页码	937
结束页码	943
卷号	5 期号:2
英文摘要	Two-dimensional (2D) perovskites have become a research hotspot due to their large exciton binding energy and excellent stability. However, it is difficult to achieve longer wavelength emission than blue and green light in the 2D perovskites owing to their wide band gap resulting from their strong quantum confinement. Herein, we demonstrate a simple, efficient and low energy consumption crystallization method at room temperature to synthesize Mn2+ ion doped 2D (PEA)2PbBr4 nanocrystals (NCs) with dual-color emission centered at 410 nm from the exciton transition of the host and 600 nm from the d-d transition of Mn2+ ions. The periodic XRD peaks prove the formation of 2D perovskites. It is reassuring that the high PLQY of 54% has been achieved in the Mn2+ ion doped 2D (PEA)2PbBr4 NCs. The temperature-dependent and time-resolved spectra illustrate the efficient energy transfer from excitons to Mn2+ dopant ions. The realization of white LEDs with different color temperatures presents an opportunity and prospect for Mn2+ ion doped 2D perovskites in LED application. © the Partner Organisations.
scopus关键词	Binding energy; Bromine compounds; Color; Energy gap; Energy transfer; Energy utilization; Excitons; Lead compounds; Light emitting diodes; Perovskite; Semiconductor quantum wells; Efficient energy transfer; Exciton transitions; Exciton-binding energy; Low energy consumption; Temperature dependent; Time-resolved spectra; Two Dimensional (2 D); White light emitting diodes; Ions
来源期刊	Materials Chemistry Frontiers
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177264
作者单位	State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China; Department of Prothodontics, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China; Department of Chemistry and Physics, Louisiana State University, Shreveport, LA 71115, United States
推荐引用方式 GB/T 7714	Gao X.,Shen X.,Xue D.,et al. Dual-color emitting Mn2+ion doped (PEA)2PbBr4perovskite towards white light-emitting diodes[J],2021,5(2).
APA	Gao X..,Shen X..,Xue D..,Li X..,Lu P..,...&Bai X..(2021).Dual-color emitting Mn2+ion doped (PEA)2PbBr4perovskite towards white light-emitting diodes.Materials Chemistry Frontiers,5(2).
MLA	Gao X.,et al."Dual-color emitting Mn2+ion doped (PEA)2PbBr4perovskite towards white light-emitting diodes".Materials Chemistry Frontiers 5.2(2021).