alexa Low Characteristic Temperature Glass Ceramic For LED Lighting
ISSN: 2169-0022

Journal of Material Sciences & Engineering
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Share This Page

Additional Info

Loading Please wait..

3rd International Conference and Exhibition on Materials Science & Engineering
October 06-08, 2014 Hilton San Antonio Airport, USA

Fan-Bean Wu, Yuan-Run Chung, Chih-Kun Chang and Jin-Hong Liao
ScientificTracks Abstracts: J Material Sci Eng
DOI: 10.4172/2169-0022.S1.014
With the needs in higher efficiency, enlarged power, and longer lifetime, phosphor-converted, PC, LED lighting has been developed and continuously pushed for better performance. In a YAG/Blue-LED white light system, the degradation of the polymer-based YAG containing layer for light conversion the key. In this work, borosilicate glass systems with functional additives, including Li, Bi, Zn, and La, for YAG phosphor incorporation processat relative low temperatures down to 500?C are studied. Controlled thermal annealing for YAG phosphor powders to be contained in the softened glass to form a 5-150 μm glass-ceramic layer is researched. Through structural and bonding analyses, the addition of Bi is beneficial to a relaxed glass structure, leading to the promotion of refractive index and decrease in characteristic temperatures. The Li and La doped glass systems exhibit a relatively higher glass softening point over 650?C, nevertheless a thicker glass-ceramic layer for conversion can be produced under controlled annealing. The developed YAG containing borosilicate glass-ceramics are applied in the LED lighting package for performance evaluation. A tunable light from yellow, white to blue can be manipulated through YAG containing glass-ceramic layer thickness control.
image PDF   |   image HTML

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version