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四角状纳米ZnO的制备及其场发射性能

Synthesis and field emission properties of tetrapod-like ZnO nanorods
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摘要 利用热蒸发法制备出了新颖的四角状ZnO纳米棒.研究了四角状纳米ZnO的场发射特性.场发射测试表明四角状ZnO纳米棒具有较好的场发射特性,开启电场为2.9V/μm,阈值电场为5.4V/μm.这一结果表明四角状ZnO纳米棒是一种性能优良的冷阴极电子发射源. We fabricated a kind of novel tetrapod-like ZnO nanorod using a simple thermal evaporation method and tested its field emission properties. The field emission properties show that the tetrapod-like ZnO nanorod has a low turn on/off field at 2.9 V/μm and an threshold electric field of 5.4 V/μm. Hence, it's indicated that tetrapod-like ZnO nanorod is an excellent cold cathode electron emission source.
出处 《华中师范大学学报(自然科学版)》 CAS 北大核心 2015年第6期867-871,共5页 Journal of Central China Normal University:Natural Sciences
基金 国家自然科学青年基金项目(21403109) 江苏省博士后基金资助项目(1302099C) 湖北科技学院教学研究项目(2013-XA-012)
关键词 ZNO 纳米结构 热蒸发法 场发射 ZnO nanostructures thermal evaporation method field emission
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