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Open AccessArticle

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

College of Science, Minzu University of China, Beijing 10081, China
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;
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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