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Please use this identifier to cite or link to this item:
http://140.128.103.80:8080/handle/310901/23073
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| Title: | Emitter spacing effects on field emission properties of laser-treated single-walled Carbon nanotube buckypapers |
| Authors: | Chen, Y.a, Miao, H.-Y.ab , Lin, R.J.c, Zhang, M.a , Liang, R.a, Zhang, C.a, Wang, B.a |
| Contributors: | Department of Electrical Engineering, Tunghai University |
| Date: | 2010 |
| Issue Date: | 2013-06-04T08:21:28Z (UTC)
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| Abstract: | Carbon nanotube (CNT) emitters on buckypaper were activated by laser treatment and their field emission properties were investigated. The pristine buckypapers and CNT emitters' height, diameter, and spacing were characterized through optical analysis. The emitter spacing directly impacted the emission results when the laser power and treatment times were fixed. The increasing emitter density increased the enhanced field emission current and luminance. However, a continuous and excessive increase of emitter density with spacing reduction generated the screening effect. As a result, the extended screening effect from the smaller spacing eventually crippled the field emission effectiveness. Luminance intensity and uniformity of field emission suggest that the highly effective buckypaper will have a density of 2500 emission spots cm -2, which presents an effective field enhancement factor of 3721 and a moderated screening effect of 0.005. Proper laser treatment is an effective post-treatment process for optimizing field emission, luminance, and durability performance for buckypaper cold cathodes. ? 2010 IOP Publishing Ltd. |
| Relation: | Nanotechnology
Volume 21, Issue 49, 10 December 2010, Article number495702 |
| Appears in Collections: | [電機工程學系所] 期刊論文
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