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Control of creeping discharge for surface light-emitting device and improvement of emission intensity

表面发光器件沿面放电的控制和发光强度的提高

基本信息

批准号：
16560250
负责人：
NAKAYAMA Hiroshi
金额：
$ 1.41万
依托单位：
University of Hyogo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16560250/
关键词：
Creeping discharge Corona light-emission Backside electrode Dielectrics 交流電圧コロナ発光

项目摘要

So far, studies of creeping discharge have been focused on suppression of generation and development, because creeping discharge leads to dielectric breakdown and accident on power apparatus in many cases. On the contrary researches on practical application of creeping discharge have not been so intensive until now, so that engineering applications are limited such as ozonizer and apparatuses for removal of pollutions. The purpose of the present work is establishment of controlling technique of creeping discharge for applying to surface emitting devices such as illumination and display. At first, we have been investigated on following items for stable generation of uniform planar creeping discharge with practical light-emission intensity.By electrical and optical measurements, to clarify experimentally behavior of charges on solid dielectrics and interactions between charges and dielectrics, mechanism of generation and development of planar creeping discharge, influence of backside ele … More ctrode and emission mechanism by electric discharge have been investigated.Namely, we have been investigated from following viewpoints ;(1)Investigation of behavior of charge on creeping discharge by electrical measurements such as discharge current(2)Investigation of light emission process on creeping discharge by measurements of emission spectraTo make considerations for improvement of emission intensity of planar creeping discharge, at first it is important that evaluation of emission on electric discharge in Ne gas is performed for adopted electrode configuration in the present work. So that emission spectra and emission intensity have been measured precisely and condition with high emission in Ne gas has been investigated. In addition, investigation have been carried out in other gases and relationship between charges and properties of gaseous dielectrics, which have affected to generation and emission on planar creeping discharge, has been considered. Furthermore, white light-emitting device by using excitation of fluorescent materials ahs been constructed and we successfully obtained emission from the device. Less

迄今为止，对蠕变放电的研究主要集中在抑制蠕变放电的产生和发展上，因为蠕变放电在很多情况下会导致电力设备的介质击穿和事故。相反，目前对蠕变排放的实际应用研究还不是很深入，因此工程应用受到限制，如臭氧发生器和去除污染的设备。本文的目的是建立一种适用于照明、显示等表面发光器件的蠕变放电控制技术。首先，我们对稳定产生具有实际发光强度的均匀平面蠕变放电进行了以下几个方面的研究。通过电学和光学测量，阐明了固体介质中电荷的实验行为和电荷与介质的相互作用，探讨了平面蠕变放电的产生和发展机理、背面电场的影响以及放电的发射机理。也就是说，我们从以下几个角度进行了调查；(1)通过放电电流等电学测量研究电荷对蠕变放电的行为(2)通过发射光谱测量研究蠕变放电的发光过程为了考虑提高平面蠕变放电的发射强度，本工作首先需要对所采用的电极结构进行Ne气体放电的发光评价。从而精确测量了Ne气体的发射光谱和发射强度，研究了Ne气体的高发射条件。此外，在其他气体中也进行了研究，考虑了电荷与气体介质性质之间的关系对平面蠕变放电的产生和发射的影响。此外，我们还构建了利用荧光材料激发的白光发射装置，并成功地获得了该装置的发光。少