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Open AccessArticle

Plasmon-Enhanced Blue-Light Emission of Stable Perovskite Quantum Dot Membranes

1
College of Science, Minzu University of China, Beijing 10081, China
2
Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(5), 770; https://doi.org/10.3390/nano9050770
Received: 18 April 2019 / Revised: 13 May 2019 / Accepted: 15 May 2019 / Published: 19 May 2019
(This article belongs to the Special Issue Preparation, Characterization and Utility of Quantum Dots)
A series of stable and color-tunable MAPbBr3−xClx quantum dot membranes were fabricated via a cost-efficient high-throughput technology. MAPbBr3−xClx quantum dots grown in-situ in polyvinylidene fluoride electrospun nanofibers exhibit extraordinary stability. As polyvinylidene fluoride can prevent the molecular group MA+ from aggregating, MAPbBr3−xClx quantum dots are several nanometers and monodisperse in polyvinylidene fluoride fiber. As-prepared MAPbBr3−xClx quantum dot membranes exhibit the variable luminous color by controlling the Cl content of MAPbBr3−xClx quantum dots. To improve blue-light emission efficiency, we successfully introduced Ag nanoparticle nanofibers into MAPbBr1.2Cl1.8 quantum dot membranes via layer-by-layer electrospinning and obtained ~4.8 folds fluorescence enhancement for one unit. Furthermore, the originality explanation for the fluorescence enhancement of MAPbBr3−xClx quantum dots is proposed based on simulating optical field distribution of the research system. View Full-Text
Keywords: perovskite quantum dots; plasmon-enhance fluorescence; electrospinning perovskite quantum dots; plasmon-enhance fluorescence; electrospinning
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MDPI and ACS Style

Gu, K.; Peng, H.; Hua, S.; Qu, Y.; Yang, D. Plasmon-Enhanced Blue-Light Emission of Stable Perovskite Quantum Dot Membranes. Nanomaterials 2019, 9, 770.

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