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Research On Synthesis And Luminescence Performance Of White-Light LED-used Fluorescent Materials

Posted on:2007-08-15Degree:MasterType:Thesis
Country:ChinaCandidate:H T HaoFull Text:PDF
GTID:2121360185476604Subject:Materials science
Abstract/Summary:PDF Full Text Request
White-light light emitting diodes(LED) possesses such excellent performance as low power consumption, long lifetime, environmental protection and fast response time, and so on. Along with increasing of LED luminous efficiency and declining of manufacture costs, it is forecasted that white-light LED will become the new generation lighting and replace incandescent lamp, fluorescent lamp and high intensity discharge lamp and other types of lamp. In the 21st century, white-light Semiconductor lighting will become the high and new technology that possesses great developmental potential. Semiconductor lighting realized white-light emitting by using combination of red-light LED chip, green-light LED chip and blue-light LED chip, or coating fluorescent materials on high brightness GaN-based blue-light chip or ultraviolet-light chip. Wherein, these fluorescence materials are named white-light LED-used fluorescence materials.In this paper, white-light LED blue conversion materials used widely, which are Yttrium Aluminum Garnet phosphor(Y3Al5Oi2, simply called YAG), were synthesized by combination of high-energy ball milling and reactive...
Keywords/Search Tags:Solid light source, white-light LED, YAG phosphors, sintering, doping, spectra
PDF Full Text Request
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