Self-catalyst synthesis of aligned ZnO nanorods by pulsed laser deposition

作     者：LEN Song-En Andy 

作者机构：University of Maryland at College Park College Park Maryland USA 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2009年第52卷第2期

页      面：207-211页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 50532080) the Science & Technology Foundation for Key Laboratory of Liaoning Province (Grant No. 20060131) the Doctoral Project by China Ministry of Education (Grant No. 20070141038) 

主　　题：ZnO nanorods buffer-layer self-catalyst pulsed laser deposition 

摘      要：High-density well-aligned ZnO nanorods were successfully synthesized on ZnO-buffer-layer coated indium phosphide (InP) (100) substrates by a pulsed laser deposition (PLD) method. Scanning electron microscopy images show that the ZnO buffer layer formed uniform drip-like structure and ZnO nano- rods were well-oriented perpendicular to the substrate surface. The sharp diffraction peak observed at 34.46° in X-ray diffraction scanning pattern suggests that the ZnO nanorods exhibit a (002)-preferred orientation. The PL spectra of ZnO samples shows a strong near band edge emission centered at about 380 nm and a weak deep level emission centered at around 495 nm, and it demonstrates that the ZnO nanorods produced in this work have high optical quality, which sheds light on further applications for nanodevices.