Hydrothermal treatment of ZnO nanostructures

被引:13
作者
Chen, Xinyi [1 ]
Ng, Alan Man Ching [1 ]
Djurisic, Aleksandra B. [1 ]
Ling, Chi Chung [1 ]
Chan, Wai Kin [2 ]
机构
[1] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
[2] Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China
关键词
Oxides; N-nanorods; Zinc oxide; Hydrothermal treatments; Scanning electron microscopy; Morphology; Photoluminsescence;
D O I
10.1016/j.tsf.2011.11.019
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Hydrothermal treatment of ZnO nanostructures involves low temperatures (150-200 degrees C) and elevated water vapor pressure for the purpose of the improvement in the material properties. Under such moderate conditions, no significant changes in the morphology would be expected. Nevertheless, such treatment results in a significant change of nanostructured morphologies of ZnO. The observed changes are dependent on the starting material properties and the substrate used for the growth. In the case of Si substrate, hydrothermal treatment results in significant Si contamination of the samples. In terms of the optical properties, improvements are observed only in some cases, while samples with excellent starting optical properties are degraded by the treatment Mechanisms responsible for the observed changes are discussed. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:2656 / 2662
页数:7
相关论文
共 17 条
[1]   ZnO Nanocrystals: Surprisingly 'Alive' [J].
Ali, Moazzam ;
Winterer, Markus .
CHEMISTRY OF MATERIALS, 2010, 22 (01) :85-91
[2]   Microstructure and gas sensing properties of the ZnO thick film treated by hydrothermal method [J].
Bai, Zikui ;
Xie, Changsheng ;
Zhang, Shunping ;
Zhang, Liuxian ;
Zhang, Qinyi ;
Xu, Weilin ;
Xu, Jie .
SENSORS AND ACTUATORS B-CHEMICAL, 2010, 151 (01) :107-113
[3]   The Influence of the ZnO Seed Layer on the ZnO Nanorod/GaN LEDs [J].
Chen, X. Y. ;
Ng, A. M. C. ;
Fang, F. ;
Djurisic, A. B. ;
Chan, W. K. ;
Tam, H. L. ;
Cheah, K. W. ;
Fong, P. W. K. ;
Lui, H. F. ;
Surya, C. .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2010, 157 (03) :H308-H311
[4]   Low energy electron irradiation induced deep level defects in 6H-SiC:: The implication for the microstructure of the deep levels E1/E2 -: art. no. 125504 [J].
Chen, XD ;
Yang, CL ;
Gong, M ;
Ge, WK ;
Fung, S ;
Beling, CD ;
Wang, JN ;
Lui, MK ;
Ling, CC .
PHYSICAL REVIEW LETTERS, 2004, 92 (12) :125504-1
[5]   ZnO nanostructures for optoelectronics: Material properties and device applications [J].
Djurisic, A. B. ;
Ng, A. M. C. ;
Chen, X. Y. .
PROGRESS IN QUANTUM ELECTRONICS, 2010, 34 (04) :191-259
[6]   Optical properties of ZnO nanostructures [J].
Djurisic, Aleksandra B. ;
Leung, Yu Hang .
SMALL, 2006, 2 (8-9) :944-961
[7]   Aging effects on the optical properties of an individual Zn-rich ZnO nanowire [J].
Du, Yinxiao ;
Zeng, Fanguang .
JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (04) :1275-1278
[8]  
Li JH, 2006, J PHYS CHEM B, V110, P14685, DOI 10.1021/jp0615631
[9]   Well-aligned arrays of vertically oriented ZnO nanowires electrodeposited on ITO-coated glass and their integration in dye sensitized solar cells [J].
Lupan, O. ;
Guerin, V. M. ;
Tiginyanu, I. M. ;
Ursaki, V. V. ;
Chow, L. ;
Heinrich, H. ;
Pauporte, T. .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2010, 211 (01) :65-73
[10]   Hydrothermal treatment for the marked structural and optical quality improvement of ZnO nanowire arrays deposited on lightweight flexible substrates [J].
Lupan, Oleg ;
Pauporte, Thierry .
JOURNAL OF CRYSTAL GROWTH, 2010, 312 (16-17) :2454-2458