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Direct Hot-Injection Synthesis of Mn-Doped CsPbBr3 Nanocrystals

Cited 32 time in webofscience Cited 79 time in scopus
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Title
Direct Hot-Injection Synthesis of Mn-Doped CsPbBr3 Nanocrystals
Author(s)
David Parobek; Yitong Dong; Tian Qiao; Dong Hee Son
Subject
CESIUM LEAD HALIDE, ; CSPBCL3 PEROVSKITE NANOCRYSTALS, ; ENERGY-TRANSFER, ; ANION-EXCHANGE, ; QUANTUM DOTS, ; OPTICAL-PROPERTIES, ; LUMINESCENCE, ; MANGANESE, ; EMISSION, ; DYNAMICS
Publication Date
2018-05
Journal
CHEMISTRY OF MATERIALS, v.30, no.9, pp.2939 - 2944
Publisher
AMER CHEMICAL SOC
Abstract
We report the direct hot-injection synthesis of Mn-doped cesium lead bromide (CsPbBr3) perovskite nanocrystals. In contrast to Mn-doped CsPbCl3 nanocrystals, where doping of Mn under typical hot-injection synthesis condition has been relatively straightforward, extending the same approach to CsPbBr3 has been very difficult. Here, we achieved the synthesis of Mn-doped CsPbBr3 nanocrystals via the formation of an intermediate structure (L2[Pb1-xMnx]Br4, L = ligand) before the hot-injection of the Cs precursor, which contains the same Mn-Br coordination present in Mn-doped CsPbBr3 nanocrystals. A strong correlation was observed between the Mn luminescence intensities of L2[Pb1-xMnx]Br4 and Mn-doped CsPbBr3 nanocrystals, suggesting the possible role of L2[Pb1-xMnx]Br4 as the structural precursor to Mn-doped CsPbBr3 nanocrystals. The successful Mn doping in CsPbBr3 nanocrystal host, which has significantly better optical characteristics than CsPbCl3 nanocrystals, will expand the range of useful properties of Mn-doped cesium lead halide perovskite nanocrystals resulting from the coupling of exciton and Mn. © 2018 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/5282
DOI
10.1021/acs.chemmater.8b00310
ISSN
0897-4756
Appears in Collections:
Center for Nanomedicine (나노의학 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
201803_Chem. Mater._Direct Hot-Injection Synthesis of Mn-Doped CsPbBr3 Nanocrystals.pdfDownload

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