Preparation and Evaluation of a Zirconia/Oligosiloxane Nanocomposite for LED Encapsulation

NCUIR > Engineering College > Department of Chemical and Materials Engineering > journal & Dissertation > Item 987654321/101918

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Title:	Preparation and Evaluation of a Zirconia/Oligosiloxane Nanocomposite for LED Encapsulation
Authors:	蔣孝澈;Chung, Pao-Tang;Chiou, Shian-Hau;Tseng, Chin-Yao;Chiang, Anthony Shiaw-Tseh
Contributors:	工學院化學工程與材料工程學系
Keywords:	biphenyl;butyric acid;encapsulation;humidity;nanocomposites;nanocrystals;refractive index;resins;silanes;silicone;solvents;temperature;viscosity
Date:	2016-04-20
Issue Date:	2026-04-21 14:51:02 (UTC+8)
Publisher:	American Chemical Society;United States: American Chemical Society
Abstract:	摘要： A zirconia/oligosiloxane nanocomposite encapsulant has been developed and tested in a high-power LED package against commercial silicone resins. The composite was a marriage of zirconia nanocrystals modified with butyric acid (BA) and 3-methacryloxy propyl trimethoxysilane (MPTMS) and a high-index methacryloxy–oligosiloxanes resin made from MPTMS plus dimethyl, diphenyl, and triphenyl silanes. The modified zirconia had an index of 1.762 (589 nm) and was dispersible in many solvents. The oligosiloxane resin, however, had an index of 1.5413 with good encapsulation properties and low viscosity allowing the incorporation of more zirconia. The final nanocomposite showed a refractive index of 1.625 with high transparency and a wavelength-independent scattering, both desirable for the light extraction from LED. When tested in a high-power LED package, the composite encapsulant resulted in 13% more light output compared to the commercial encapsulant (OE-6630, Dow Corning Corp.) and showed longer than 1000 h of lifetime (L 70) under the steady-state Temperature Humidity Bias (THB) test. 其他題名： ACS Appl. Mater. Interfaces 出版者： United States: American Chemical Society 出版日期： 2016-04-20 出處： ACS applied materials & interfaces, 2016-04, Vol.8 (15), p.9986-9993 資源來源： American Chemical Society Journals 版權： Copyright © 2016 American Chemical Society 識別號： ISSN: 1944-8244 識別號： ISSN: 1944-8252 識別號： EISSN: 1944-8252 識別號： DOI: 10.1021/acsami.6b02082 識別號： PMID: 27029544
Appears in Collections:	[Department of Chemical and Materials Engineering] journal & Dissertation

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