| 两步法制备性能优良的ZnO纳米线 |
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| 引用本文： | 张秋香,张永胜,白伟,郁可,朱自强.两步法制备性能优良的ZnO纳米线[J].华东师范大学学报(自然科学版),2007,2007(3):135-140. |
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| 作者姓名： | 张秋香 张永胜 白伟 郁可 朱自强 |
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| 作者单位： | 1. 华东师范大学,电子科学技术系,上海,200062
2. 华东师范大学,电子科学技术系,上海,200062;洛阳工业高等专科学校,计算机系,河南,洛阳,471003 |
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| 基金项目： | 国家自然科学基金
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河南省自然科学基金 |
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| 摘 要： | 利用热蒸发和溶液浸泡两步法制备了性能优良的ZnO纳米线，研究了这些ZnO纳米线的光致发光和场发射特性.与直接采用热蒸发方法生长的ZnO纳米线相比，由该方法得到的ZnO纳米线表现出了更好的紫外发光特性，同时发生5 nm的蓝移，场发射测试表明其开启电场和阈值电场分别达到2.3 V/μm和6.8 V/μm.该方法适用于制备光致发光和场发射性能优良的ZnO纳米线.
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| 关 键 词： | ZnO纳米线 光致发光 场发射 ZnO纳米线 光致发光 场发射 |
| 文章编号： | 1000-5641（2007）03-0135-06 |
| 收稿时间： | 2006-06 |
| 修稿时间： | 2006-06 |
Excellent Characteristics of ZnO Nanowires Synthesized by Two Step Method (Chinese) |
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| ZHANG Qiu-xiang,ZHANG Yong-sheng,BAI Wei,YU Ke,ZHU Zi-qiang.Excellent Characteristics of ZnO Nanowires Synthesized by Two Step Method (Chinese)[J].Journal of East China Normal University(Natural Science),2007,2007(3):135-140. |
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| Authors: | ZHANG Qiu-xiang ZHANG Yong-sheng BAI Wei YU Ke ZHU Zi-qiang |
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| Affiliation: | 1. Department of Electronic Science and Technology, East China Normal University, Shanghai 200062, China ; 2. Department of Computer, Luoyang Technology College, Luoyang Henan 471003, China |
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| Abstract: | ZnO nanowires with excellent properties were synthesized by two step method. Photoluminescence (PL) measurements showed that the ZnO nanowireshave stronger ultraviolet emission properties at 376 nm and there is a 5 nm blue shift after being immersed in thiourea (TU) solution compared with those of without immersion. The immersed ZnO nanowires show a turn on field of 2.3 V/μm at a current density of 0.1 μA/cm2 and emission current density up to 1 mA/cm2 at an applied field of 6.8 V/μm, which are 2.7 V/μm and 7.9 V/μm for those of without being immersed, respectively. So this method may be an effective method to improve the characteristics of ZnO nanowires. |
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| Keywords: | ZnO nanowires photoluminescence field emission |
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