Carbon-Coated Porous Aluminum Oxides Used as Spacer Overlayers to Reduce Secondary Electron Emission for Field Emission Display Applications
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概要
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Porous surface structures can mitigate the charging effect of vacuum spacers of field-emission flat panel display due to the abundance of secondary electrons (SEs) emitted from the spacers during field emission display (FED) operation. In this study, we fabricated porous anodic aluminum oxide (AAO) overlayers on glass substrates to examine the effect of carbon deposition on the reduction of SE emissions. This paper reports that uniform AAO overlayers can be simultaneously prepared on both sides of a glass plate 2 \times 10 cm<sup>2</sup>in size. The SE emission of the AAO overlayer was examined by using an Auger electron microscope. When a small amount of carbon is evaporation-deposited on the as-prepared AAO overlayer, the SE emission efficiency is significantly decreased and the reduction in the SE emission is ascribed to the low SE yield of the carbon deposit and the suppression of SE escape from the narrowed pore channels. However, a heavy deposition of carbon results in a smaller surface roughness of the AAO overlayer, thereby increasing SE emission. The carbon-coated AAO overlayer demonstrates favorable electrical and mechanical properties, making it suitable for use in FED vacuum spacers.
- 2013-07-25
著者
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Pan Fu-ming
Department Of Materials Science And Engineering National Chiao Tung University
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Lin Ting-Li
AU Optronics Corporation, Hsinchu Science Park, Hsinchu, Taiwan 30078, R.O.C.
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Chen Tsung-Han
AU Optronics Corporation, Hsinchu Science Park, Hsinchu, Taiwan 30078, R.O.C.
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Yu Tung-Yuan
Department of Materials Science and Engineering, National Chiao-Tung University, Hsinchu, Taiwan 30010, R.O.C.
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Chen Cheng-Li
Department of Materials Science and Engineering, National Chiao-Tung University, Hsinchu, Taiwan 30010, R.O.C.
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Chen Te-Ming
AU Optronics Corporation, Hsinchu Science Park, Hsinchu, Taiwan 30078, R.O.C.
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Kuo Chih-Che
AU Optronics Corporation, Hsinchu Science Park, Hsinchu, Taiwan 30078, R.O.C.
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- Field Emission Property of Carbon Nanotube Field Emitters in Triode Structure Fabricated with Anodic Aluminum Oxide Templates
- Carbon-Coated Porous Aluminum Oxides Used as Spacer Overlayers to Reduce Secondary Electron Emission for Field Emission Display Applications
- Carbon-Coated Porous Aluminum Oxides Used as Spacer Overlayers to Reduce Secondary Electron Emission for Field Emission Display Applications (Crystal growth, surfaces, interfaces, thin films, and bulk materials)