| 粉浆法制备平面荧光粉涂层白光LED的技术改进 |
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| 引用本文： | 万远涛,饶海波,何远,俱剑军,高寒松. 粉浆法制备平面荧光粉涂层白光LED的技术改进[J]. 光电子．激光, 2011, 0(6): 823-826 |
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| 作者姓名： | 万远涛 饶海波 何远 俱剑军 高寒松 |
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| 作者单位： | 电子科技大学光电信息学院；;电子科技大学光电信息学院；;电子科技大学光电信息学院；;电子科技大学光电信息学院；;电子科技大学光电信息学院； |
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| 基金项目： | 国家“863”计划资助项目(2006AA03A116);四川省应用基础研究资助项目(2008JY0051) |
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| 摘 要： | 基于粉浆法制备白光LED能得到厚度可控的荧光粉层,改善了白光LED的均匀性.由于芯片长时间工作时表面的发热以及回流焊时的瞬间高温环境,聚乙烯醇(PVA)感光胶的颜色容易发生改变,影响了白光LED光效的稳定性.本文采用等离子体去胶,实验结果表明,通过该方法能有效去除感光胶,处理后的LED不会因为长时间工作荧光粉表面涂层的...
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| 关 键 词： | 白光LED 平面涂层 聚乙烯醇(PVA) 重铬酸铵(ADC) 等离子体去胶 |
Improved technology of slurry-based preparation for planar phosphor-coating white LED |
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| WAN Yuan-tao,RAO Hai-bo,HE Yuan,JU Jian-jun and GAO Han-song. Improved technology of slurry-based preparation for planar phosphor-coating white LED[J]. Journal of Optoelectronics·laser, 2011, 0(6): 823-826 |
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| Authors: | WAN Yuan-tao RAO Hai-bo HE Yuan JU Jian-jun GAO Han-song |
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| Affiliation: | School of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu 610054,China;School of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu 610054,China;School of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu 610054,China;School of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu 610054,China;School of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu 610054,China |
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| Abstract: | The phosphor layer with contrdlable thickness can be obtained by preparing white LED based on slurry method.This structure possesses many physical characteristics and can improve the uniformity of the white LED.Because of the heat emission from the chip and the momentary temperature from the reflow sold,the polyvinyl alcohol(PVA) will become brown in the high temperature condition,which affects the white LED luminous stabilization.Adopting plasma stripping can not only effectively remove the lig... |
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| Keywords: | white LED planar phosphor coating polyvinyl alcohol(PVA) ammonium dichromate(ADC) plasma striping glue |
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