Synthesis of ZnO Nanowires by Nanoparticle-Assisted Pulsed-Laser Deposition and Optical Characteristics of Single ZnO Nanowire

Synthesis of ZnO Nanowires by Nanoparticle-Assisted Pulsed-Laser Deposition and Optical Characteristics of Single ZnO Nanowire
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纳米颗粒辅助脉冲激光沉积法合成 ZnO 纳米线及单根 ZnO 纳米线的光学特性

DOI:
10.2184/lsj.36.499
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发表时间:
2008
期刊:
The Review of Laser Engineering
影响因子:
--
通讯作者:
J. Nishimura
J. Nishimura
中科院分区:
其他
文献类型:
--
作者:
R. Q. Guo;T. Okada;M. Matsumoto;M. Higashihata;J. Nishimura

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介绍了纳米粒子辅助脉冲激光沉积(NAPLD)法制备氧化锌纳米线的工艺及其光学性能的表征。利用NAPLD在蓝宝石衬底上成功生长了垂直排列的ZnO纳米线。通过改变激光辐照条件,如能量和重复频率,可以控制纳米线在衬底上的表面密度。当纳米线被调q Nd:YAG激光的三次谐波激发时,观察到单纳米线中由于微腔效应而产生的受激发射,激光阈值约为400 kW/cm2,表明ZnO纳米线的结晶度较高。
Technique for synthesis of the ZnO nanowires by Nanoparticle-Assisted Pulsed-Laser Deposition (NAPLD) and the characterization of their optical property are described. Vertically-aligned ZnO nanowires were successfully grown on sapphire substrates by NAPLD without any catalyst. The surface density of the nanowires on the substrate was controlled by changing the laser irradiation conditions, such as an energy and a repetition rate. When a nanowire was excited by the third harmonic of a Q-switched Nd:YAG laser, the stimulated emission due to a micro-cavity effect in single nanowire was observed with a lasing threshold of about 400 kW/cm2, indicating high crystalinity of ZnO nanowires.
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