期刊文献+

电化学沉淀法制备纳米结构氧化锌的场发射特性 被引量:6

Investigation on the Field Emission Performance of ZnO Rod Arrays Prepared by the Electrochemical Precipitation Method
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摘要 对电化学沉淀法制备的氧化锌纳米棒阵列,通过室温下真空场发射电流密度与外加电压关系的测量,研究其场发射特性。根据测量数据,基于Fowler-Nordheim方程,估算了样品场发射效应的增强因子,观察到其取值随外加电压变化具有反常的两阶段性,即当外电场强度在3.3 V/μm场发射开启值到4.3 V/μm之间时,增强因子值为1339,外加场强大于4.3 V/μm时,增强因子锐减至296;结合样品的光致发光谱和能量散射谱,应用半导体中强电场效应、掺杂半导体中温度对费米能级、载流子浓度和迁移率影响,通过场发射电流密度测量系统的串联电路等效,分析了样品缺陷态对此两阶段性的决定和影响。 Periodic zinc oxide nano-rod arrays,which were synthesized by electrochemically deposited method,were experimentally investigated for their field emission(FE) properties,especially the current density varying with the intensity of the applied electric field;and the fascinating two-stage behavior of electric field enhancement factor(β) was observed(β=1339 when 3.3 V/μmE4.3 V/μm and β=296 when E4.3 V/μm).The abnormal performance and two-stage behavior of the β was explained based on the combination of the intensive electric field effect in semiconductor and its influence on the Fermi energy level with the effective series connection circuit of FE detection systems.
出处 《人工晶体学报》 EI CAS CSCD 北大核心 2011年第1期187-192,共6页 Journal of Synthetic Crystals
基金 国家自然科学基金(60576008 10674023)资助项目 安徽省自然科学基金(11040606M10) 安徽省教育厅自然科学基金重点项目(KJ0140A306) 淮阴工学院校重点项目(HGA0013)
关键词 场发射 强场效应 缺陷态 串联等效 field emission intensive field effect defect states resistive voltage divider in series
作者简介 王马华(1966-),男,江苏省人,博士,副教授。E-mail:wmh0304@sina.com
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参考文献17

  • 1Buldum A,Lu J P.Electron Field Emission Properties of Cased Carbon Nanotubes[J].Phys.Rev.Lett.,2003,91(23):236801-236804.
  • 2Walt A,Heer D,Chatelain A,et al.A Carbon Nanotube Field-emission Electron Source[J].Science,1995,270(11):1179-1180.
  • 3Tamtair F G,Wen C Y,Chen L C,et al.Field Emission from Quasi-aligned SiCN Nanorods[J].Appl.Phys.Lett.,2000,76(18):2630-2632.
  • 4Wang R C,Liu C P,Huang J L.ZnO Nanopencils:Efficient Field Emitters[J].Appl.Phys.Lett.,2005,87(13):1101-1103 80.
  • 5Xu C X,Sun X W,Chen B J.Field Emission from Gallium-doped Zinc Oxide Nanofiber Array[J].Appl.Phys.Lett.,2004,84(9):1540-1542.
  • 6Xu C X,Sun X W.Field Emission from One-dimension Nanostructured Zinc Oxide[J].J.of Nanotechnology,2004,1(4):452-462.
  • 7Xu C X,Sun X W,Dong Z L,et al.Field Emission from ZnO by Morphological and Electronic Design[J].Solid State Phenomena,2007,121(10):813-816.
  • 8哈日巴拉,刘占连,杨海滨,付乌有.梳子状ZnO纳米棒阵列的制备及表征[J].人工晶体学报,2009,38(2):492-496. 被引量:1
  • 9肖宗湖,张萌.ZnO薄膜结构缺陷与发光性能研究(一)[J].人工晶体学报,2006,35(6):1322-1327. 被引量:11
  • 10袁艳红,侯洵,白晋涛.紫外光激发下氧化锌纳米线的发光特性研究[J].光子学报,2006,35(3):373-376. 被引量:17

二级参考文献134

共引文献81

同被引文献56

  • 1张振华,彭景翠,张华,袁剑辉,黄小益.碳纳米管场发射特性的研究[J].物理学进展,2004,24(3):289-299. 被引量:3
  • 2朱光平,王马华,徐春祥,崔一平.纳米氧化锌的紫外自发辐射与受激辐射[J].发光学报,2006,27(4):602-607. 被引量:8
  • 3Breunig, D. Haertle, K. BUse. Continuous-wave optical parametric oscillators: recent developments and prospects[J]. Appl. Phys. B, 2011, 105(9): 99-111.
  • 4Liu Guangyu, Ning Yongqiang, Ai Xiaodong et al.. Study of whispering gallery mode in a photonic crystal microcavity [J]. Optoelectronics Lett., 2011, 7(2): 105-108.
  • 5D. O'Shea, C. Junge, M. Pollinger et al.. All-optical switching and strong coupling using tunable WGM microresonators[J]. Appl. Phys. B, 2011, 105(9): 129-148.
  • 6T. Nobis, M. Grundmann. Low order whispering gallery mode in hexagonal nanocavities [J]. Phys. Rev. A, 2005, 72: 063806.
  • 7J. Dai, C. X. Xu, K. Zheng et al.. Whispering gallery-mode lasing in ZnO microrods at room temperature [J]. Appl. Phys. Lett., 2009, 95: 2411101.
  • 8E. F. Schubert, A. M. Vredenbert, N. E. J. Hunt et al.. Giant enhancement of luminescence intensity in Er-doped Si/SiO2 resonant cavities [J]. Appl. Phys. Lett., 1992, 61(12): 1381-1383.
  • 9E. F. Schubert, N. E. J. Hunt, A. M. Vredenberg et al.. Enhanced photoluminescence by resonant absorption in Er-doped SiO2/Si microcavities [J]. Appl. Phys. Lett., 1993, 63(19): 2603-2605.
  • 10Y. G. Li, R. M. Almeida. Simultaneous broadening and enhancement of the 1.5 μm photoluminescence peak of Er3+ ions embedded in a 1-D photonic crystal microcavity [J]. Appl. Phys. B, 2010, 98(4): 809-814.

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