EPR Study on the Mn center in Aged Electroluminescent Device with Electron-beam Evaporated ZnS:Mn Phosphor Layer
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概要
- 論文の詳細を見る
In this work, we report a decreasing number of isolated Mn in the aged EL phosphor layer, which was observed by EPR technique for the first time. Such phenomena can be explained by that during the operation of EL device, isolated Mn can easily diffuse into another site and then, the numbers of isolated Mn decrease due to forming cluster. Clustering seems to be a favorable process in this lattice due to the effect of energy lowering. Or, the electronic charge of the isolated Mn can be transfered into neighboring Mn ions via sulfur and/or sulfur vacancy. In these cases Mn^<2+> can be changed into Mn^<1+> or Mn^<3+>, Therefore, luminance may be lowered due to the decrease in the number of efficient emission center of Mn^<2+>.
- 社団法人映像情報メディア学会の論文
- 1994-10-27
著者
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Oh Myung
Division of Electronics and Information Technology, KIST
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Lee Yun
Division of Electronics and Information Technology
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Oh Myung
Division Of Applied Science And Engineering
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Oh Myung
Division Of Electronics And Information Technology Korea Institute Of Science And Technology
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Hahn Taek
Applied Physics Group Korea Institute Of Science And Technology
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Lee Chun
Research And Development Center Orion Electric Co. Ltd.
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Lee Yun
Division Of Electronics And Information Technology Korea Institute Of Science And Technology
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CHOH Sung
Department of Physics, Korea University
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Choh Sung
Department Of Physics Korea University
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Hahn Taek
Division Of Electronics And Information Technology Korea Institute Of Science And Technology
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Jeong Seong
Research and Development Center Orion Electric Co., Ltd.
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Shin Dong
Research and Development Center Orion Electric Co., Ltd.
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Jeong Seong
Research And Development Center Orion Electric Co. Ltd.
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Shin Dong
Research And Development Center Orion Electric Co. Ltd.
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