Silica nanowires as new coating material for high-efficiency light reflection in LED system

Author

Shuang Xi ; Tielin Shi ; Xiaoping Li ; Zirong Tang

Author_Institution

Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2014

fDate

4-6 Nov. 2014

Firstpage

31

Lastpage

34

Abstract

Randomly distributed silica nanowires show highly reflectivity in the whole visible wavelength, which can be used as white light coating for high-efficiency optoelectronic packaging as affirmed by our previous work. In this work, an improved process has been developed to recombine the silica nanowires as optical coating of LED reflector cup to form diffusive reflecting surface in LED packaging. This recombination was realized through two-step process: the synthesized silica nanowires were first dispersed in distilled water via artful magnetic stirring and then absorbed on specular surface by Van der Waals´ force. This work provides an alternative and low-cost method for the improvement of lighting systems.

Keywords

electronics packaging; integrated optics; integrated optoelectronics; light emitting diodes; lighting; nanophotonics; nanowires; optical elements; optical films; silicon compounds; LED reflector; LED system; SiO₂; Van der Waals´ force; artful magnetic stirring; high-efficiency light reflection; high-efficiency optoelectronic packaging; lighting systems; optical coating material; silica nanowires; visible wavelength; Coatings; Light emitting diodes; Nanowires; Optical reflection; Silicon compounds; Surface treatment; LED; diffusive reflection; packaging; silica nanowires;

fLanguage

English

Publisher

ieee

Conference_Titel

CPMT Symposium Japan (ICSJ), 2014 IEEE

Conference_Location

Kyoto

Print_ISBN

978-1-4799-6194-8

Type

conf

DOI

10.1109/ICSJ.2014.7009602

Filename

7009602