Deep Ultraviolet Emission from Water-Soluble SnO sub(2) Quantum Dots Grown via a Facile "Top-Down" Strategy

Tin oxide (SnO sub(2)) is a promising wide bandgap semiconductor for next generation ultraviolet (UV) non-polar optoelectronic devices applications. The development of SnO sub(2)-based optoelectronic devices is obsessed by its low exciton emission efficiency. In this study, quantum confined SnO sub(...

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Bibliographic Details
Published in:Journal of materials science & technology 2015-01, Vol.31 (6), p.670-673
Main Authors: Pan, Shusheng, Lu, Wei, Chu, Zhaoqin, Li, Guanghai
Format: Article
Language:English
Subjects:
Devices
Emission
Excitation
Nanostructure
Optoelectronic devices
Quantum dots
Tin dioxide
Tin oxides
Online Access:Get full text
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Summary:Tin oxide (SnO sub(2)) is a promising wide bandgap semiconductor for next generation ultraviolet (UV) non-polar optoelectronic devices applications. The development of SnO sub(2)-based optoelectronic devices is obsessed by its low exciton emission efficiency. In this study, quantum confined SnO sub(2) nanocrystals have been fabricated via pulsed laser ablation in water. The SnO sub(2) quantum dots (QDs) possess high performance exciton emission at 297-300 nm light in water. The exciton emission intensity and wavelength can be slightly tuned by laser pulse energy and irradiation time. Optical gain has been observed in SnO sub(2) QDs. Therefore, SnO sub(2) QDs can be a promising luminescence material for the realization of deep UV nanoemitter and lasing devices.
ISSN:1005-0302
DOI:10.1016/j.jmst.2014.09.017