Title :
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
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;
Conference_Titel :
CPMT Symposium Japan (ICSJ), 2014 IEEE
Conference_Location :
Kyoto
Print_ISBN :
978-1-4799-6194-8
DOI :
10.1109/ICSJ.2014.7009602
