Growth of ZnO nanocrystals by pulsed laser deposition on sapphire and silicon and the infrared spectra of the nanocrystals

被引：3
|
作者：
Bazhenov, A. V. [1 ]
Fursova, T. N. [1 ]
Maksimuk, M. Yu. [1 ]
Kaidashev, E. M. [2 ]
Kaidashev, V. E. [2 ]
Misochko, O. V. [1 ]
机构：
[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia
[2] S Fed Univ, Inst Mech & Appl Math, Rostov Na Donu 344090, Russia
来源：
SEMICONDUCTORS | 2009年 / 43卷 / 11期
关键词：
PHONONS; MODES; FILMS;
D O I：
10.1134/S1063782609110232
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The ZnO nanorods that comprise highly oriented nanorod structures are grown on sapphire and silicon substrates by laser ablation. The nanostructures grown in different conditions are characterized by means of electron microscopy and Fourier infrared reflectance spectroscopy. The contributions of optical phonons and free charge carriers to the infrared spectra of the layers of ZnO nanorods are identified, and the degree of orientation of the ZnO nanorods with respect to the substrate surface is analyzed in relation to the conditions of growth. Softening of optical phonons of ZnO with decreasing the nanorod diameter is observed.
引用
收藏
页码：1532 / 1538
页数：7
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