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Title: Silicon nitride nanobeam enhanced emission from all-inorganic perovskite nanocrystals
Authors: Fong, Chee Fai
Yin, Yin
Chen, Yueyang
Rosser, David
Xing, Jun
Majumdar, Arka
Xiong, Qihua
Keywords: Science::Physics
Issue Date: 2019
Source: Fong, C. F., Yin, Y., Chen, Y., Rosser, D., Xing, J., Majumdar, A., & Xiong, Q. (2019). Silicon nitride nanobeam enhanced emission from all-inorganic perovskite nanocrystals. Optics Express, 27(13), 18673-18682. doi:10.1364/OE.27.018673
Project: NRF-NRFI2015-03
Journal: Optics Express 
Abstract: Optically active perovskite nanocrystals have shown considerable promise for a myriad of applications, such as single photon source, light-emitting diodes and nanophotonics. Coupling those nanocrystals to photonic micro- and nanostructures will offer additional degrees of freedom to manipulate their optical properties. Herein, we demonstrate the coupling of perovskite nanocrystals to a mechanically robust, poly(methyl-methacrylate) (PMMA)-encapsulated silicon nitride nanobeam photonic crystal cavity at room temperature. As determined from the time-resolved photoluminescence decay measurements, we observed enhanced spontaneous emission from the perovskite nanocrystals by a factor of 1.4, consistent with finite difference time domain simulation. In addition, by varying the concentration of the perovskite nanocrystal in the PMMA layer, the effective index of the layer can be modified, allowing us to tune the cavity mode resonance. Our results show that solution-processable perovskite nanocrystals hold a promising prospect for applications such as on-chip light sources, optoelectronic devices and photonic integrated circuits.
ISSN: 1094-4087
DOI: 10.1364/OE.27.018673
Rights: © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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