Optically recoverable, deep ultraviolet (UV) stable and transparent sol-gel fluoro siloxane hybrid material for a UV LED encapsulant

An ultraviolet (UV) transparent recoverable fluoro-siloxane hybrid material was prepared via a facile sol-gel process. The transparency and stability of a deep UV-LED encapsulant is a key factor in the light extraction efficiency and long-term reliability of a UV LED. In this study, we report a nove...

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Bibliographic Details
Published in:RSC advances 2016-01, Vol.6 (32), p.26826-26834
Main Authors: Bae, Jun-Young, Kim, Hwea-Yoon, Lim, Young-Woo, Kim, Yoon-Hyeok, Bae, Byeong-Soo
Format: Article
Language:English
Subjects:
Curing
Density
Encapsulation
Hydrosilylation
Sol gel process
Stability
Transmittance
Ultraviolet
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Summary:An ultraviolet (UV) transparent recoverable fluoro-siloxane hybrid material was prepared via a facile sol-gel process. The transparency and stability of a deep UV-LED encapsulant is a key factor in the light extraction efficiency and long-term reliability of a UV LED. In this study, we report a novel UV-LED encapsulation process through the thermal hydrosilylation curing of vinyl-fluoro and hydrogen-methyl oligosiloxane resins. The fluoro-siloxane hybrimer showed high UV transparency in the deep UV (
ISSN:2046-2069
2046-2069
DOI:10.1039/c6ra01346e