Red-emitting silicon quantum dot phosphors in warm white LEDs with excellent color rendering

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Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/108110

Title:	Red-emitting silicon quantum dot phosphors in warm white LEDs with excellent color rendering
Authors:	杜長慶;Tu, Chang-Ching;Hoo, Ji H.;Böhringer, Karl F.;Lin, Lih Y.;Cao, Guozhong
Contributors:	資訊電機學院電機工程學系
Date:	2014-03-10
Issue Date:	2026-04-23 14:36:09 (UTC+8)
Publisher:	The Optical Society;United States
Abstract:	摘要： We demonstrate red-emitting silicon quantum dot (SiQD) phosphors as a low-cost and environment-friendly alternative to rare-earth element phosphors or CdSe quantum dots. After surface passivation, the SiQD-phosphors achieve high photoluminescence quantum yield = 51% with 365-nm excitation. The phosphors also have a peak photoluminescence wavelength at 630 nm and a full-width-at-half-maximum of 145 nm. The relatively broadband red emission is ideal for forming the basis of a warm white spectrum. With 365-nm or 405-nm LED pumping and the addition of green- and/or blue-emitting rare-earth element phosphors, warm white LEDs with color rendering index ~95 have been achieved. 其他題名： Opt Express 出版者： United States 出版日期： 2014-03-10 出處： Optics express, 2014-03, Vol.22 (S2), p.A276 資源來源： Optica Publishing Group Journals 識別號： ISSN: 1094-4087 識別號： EISSN: 1094-4087 識別號： DOI: 10.1364/OE.22.00A276 識別號： PMID: 24800283
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

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