Microstructural modification of diamond-graphite nanohybrid films via adjusting deposition temperatures for enhanced electron field emission
文献类型：期刊论文
| 作者 | Li, HN; Xiong, Y; Wang, B1; Yang, B2; Huang, N2; Liu, Y3; Wen, JW |
| 刊名 | DIAMOND AND RELATED MATERIALS
 |
| 出版日期 | 2018-08-01 |
| 卷号 | 87页码:228-232 |
| ISSN号 | 0925-9635 |
| 关键词 | Diamond-graphite nanohybrid films Electron field emission Conductivity Deposition temperature Diethylamine |
| DOI | 10.1016/j.diamond.2018.06.003 |
| 英文摘要 | To achieve enhanced electron field emission, diamond-graphite nanohybrid films are deposited on Si substrates by means of a microwave plasma chemical vapor deposition (MPCVD) reactor. Liquid diethylamine is used as a sole reactive source. An increase of deposition temperature from 730 degrees C to 830 degrees C leads to remarkable changes of morphology and microstructure of diamond-graphite nanohybrid films, namely from a typical planar ultrananocrystalline diamond (UNCD) film at 730 degrees C to a novel nanocrystalline diamond/graphene nanowall (ND/GNW) film at 830 degrees C. The electrical conductivity of a ND/GNW film is measured to be 762.4 Omega(-1).cm(-1) , while for a UNCD film it is 18.0 Omega(-1).cm(-1). Moreover, the electron field emission is significantly enhanced on a ND/GNW film. With an applied electrical field of 9.9 V mu m(-1) its emission current density is 1.6 mA cm(-2), 8-time larger than that for a UNCD film. The possible electron emission mechanism is then discussed based on the FowlerNordheim theory. This work offers a simple way to alter effectively the microstructures of sp(2)/sp(3) nanohybrid films that benefit greatly to develop carbon-based field emission cold cathodes featuring high performance. |
| 学科主题 | Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000445294200029 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/80039]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China 2.Southwest Univ Sci & Technol, Sch Mat Sci & Engn, Mianyang 621010, Peoples R China 3.Chinese Acad Sci, IMR, Shenyang Natl Lab Mat Sci, Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 4.China Acad Engn Phys, Inst Mat, Mianyang 621907, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, HN,Xiong, Y,Wang, B,et al. Microstructural modification of diamond-graphite nanohybrid films via adjusting deposition temperatures for enhanced electron field emission[J]. DIAMOND AND RELATED MATERIALS,2018,87:228-232. |
| APA | Li, HN.,Xiong, Y.,Wang, B.,Yang, B.,Huang, N.,...&Wen, JW.(2018).Microstructural modification of diamond-graphite nanohybrid films via adjusting deposition temperatures for enhanced electron field emission.DIAMOND AND RELATED MATERIALS,87,228-232. |
| MLA | Li, HN,et al."Microstructural modification of diamond-graphite nanohybrid films via adjusting deposition temperatures for enhanced electron field emission".DIAMOND AND RELATED MATERIALS 87(2018):228-232. |
入库方式： OAI收割
来源：金属研究所
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