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Calestani D, Dhanabalan SC, Villani M, Lazzarini L, Zappettini A. InZnO nanorods obtained via zinc vapour phase deposition on liquid indium seeded substrates. CrystEngComm 2014. [DOI: 10.1039/c3ce42095g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang L, Ruan Y, Liu Y, Zhai Y. Effect of growth temperature on the structure and optical properties of ZnO nanorod arrays grown on ITO substrate. CRYSTAL RESEARCH AND TECHNOLOGY 2013. [DOI: 10.1002/crat.201300216] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lingcui Zhang
- School of Materials Science and Engineering; Qilu University and Technology; Jinan 250353 P.R. China
| | - Yongfeng Ruan
- School of Science; Tianjin University; Tianjin 300072 P.R. China
| | - Yali Liu
- School of Science; Tianjin University; Tianjin 300072 P.R. China
| | - Ying Zhai
- School of Science; Tianjin University; Tianjin 300072 P.R. China
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Dong JJ, Zhen CY, Hao HY, Xing J, Zhang ZL, Zheng ZY, Zhang XW. Controllable synthesis of ZnO nanostructures on the Si substrate by a hydrothermal route. NANOSCALE RESEARCH LETTERS 2013; 8:378. [PMID: 24006928 PMCID: PMC3847495 DOI: 10.1186/1556-276x-8-378] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 09/01/2013] [Indexed: 06/01/2023]
Abstract
In this paper, controllable synthesis of various ZnO nanostructures was achieved via a simple and cost-effective hydrothermal process on the Si substrate. The morphology evolution of the ZnO nanostructures was well monitored by tuning hydrothermal growth parameters, such as the seed layer, solution concentration, reaction temperature, and surfactant. X-ray diffraction and photoluminescence measurements reveal that crystal quality and optical properties crucially depend on the morphology of the ZnO nanostructures. The ease of synthesis and convenience to tune morphology and optical properties bring this approach great potential for nanoscale applications.
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Affiliation(s)
- Jing-Jing Dong
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Chun-Yang Zhen
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Hui-Ying Hao
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Jie Xing
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Zi-Li Zhang
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Zhi-Yuan Zheng
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Xing-Wang Zhang
- Key Lab of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Science, Beijing 100083, China
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Khranovskyy V, Tsiaoussis I, Hultman L, Yakimova R. Selective homoepitaxial growth and luminescent properties of ZnO nanopillars. NANOTECHNOLOGY 2011; 22:185603. [PMID: 21427470 DOI: 10.1088/0957-4484/22/18/185603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
High spatial density ZnO nanopillars (NPs) have been fabricated on catalyst- and pattern-free Si wafers using atmospheric pressure metal organic chemical vapor deposition (APMOCVD) at a moderate temperature (500 °C). The nanopillar diameter is ∼ 35 nm and the length is ∼ 150 nm, with a density of ∼ 2 × 10(9) cm( - 2). The growth evolution of the nanopillars, providing the (0001)(NP) ∐ (0001)(ZNO grain) ∐ (100)(Si surface) epitaxial relationship, is extensively studied by scanning and high resolution transmission microscopy. The approach to obtaining the ZnO 1D structures is explained in terms of selective homoepitaxial growth via the crystallographic anisotropy of the seeding layer. The advanced PL properties of ZnO NPs, e.g. indications of free excitonic and absence of defect emission, are related to their single crystalline nature within one pillar and most probably better stoichiometry and less contamination. The observed efficient monochromatic UV emission from the ZnO NPs at room temperature points toward their potential application as building blocks for nanoscale optoelectronic devices.
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Affiliation(s)
- V Khranovskyy
- Department of Physics, Chemistry and Biology, Linkoping University, Sweden.
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Calestani D, Zha MZ, Zanotti L, Villani M, Zappettini A. Low temperature thermal evaporation growth of aligned ZnO nanorods on ZnO film: a growth mechanism promoted by Zn nanoclusters on polar surfaces. CrystEngComm 2011. [DOI: 10.1039/c0ce00670j] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li H, Liang C, Zhong K, Liu M, Hope GA, Tong Y, Liu P. The Modulation of Optical Property and its Correlation with Microstructures of ZnO Nanowires. NANOSCALE RESEARCH LETTERS 2009; 4:1183-90. [PMID: 20596485 PMCID: PMC2893849 DOI: 10.1007/s11671-009-9381-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2009] [Accepted: 06/15/2009] [Indexed: 05/29/2023]
Abstract
ZnO nanowires with both good crystallinity and oxygen vacancies defects were synthesized by thermal oxidation of Zn substrate pretreated in concentrated sulfuric acid under the air atmosphere, Ar- and air-mixed gas stream. The photoluminescence spectra reveal that only near-band-edge (NBE) emission peak was observed for the sample grown in the air atmosphere; the broad blue-green and the red-shifted NBE emission peaks were observed for the sample grown in the mixed gas stream, indicating that the sample grown in the mixed gas stream has a defective structure and its optical properties can be modulated by controlling its structure. The high-resolution transmission electron microscope and the corresponding structural simulation confirm that the oxygen vacancies exist in the crystal of the nanowires grown in the mixed gas stream. The ZnO nanowires with oxygen vacancies defects exhibit better photocatalytic activity than the nanowires with good crystallinity. The photocatalytic process obeys the rules of first-order kinetic reaction, and the rate constants were calculated.
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Affiliation(s)
- Haohua Li
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
- MOE of Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
- Institute of Optoelectronic and Functional Composite Materials, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
| | - Chaolun Liang
- Instrumental Analysis & Research Center, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
| | - Kuan Zhong
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
- MOE of Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
- Institute of Optoelectronic and Functional Composite Materials, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
| | - Meng Liu
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
- MOE of Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
- Institute of Optoelectronic and Functional Composite Materials, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
| | - Greg A Hope
- School of Science, Griffith University, Nathan, QLD, 4111, Australia
| | - Yexiang Tong
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
- MOE of Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
- Institute of Optoelectronic and Functional Composite Materials, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
| | - Peng Liu
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
- MOE of Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
- Institute of Optoelectronic and Functional Composite Materials, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China
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Wu CC, Wuu DS, Lin PR, Chen TN, Horng RH. Effects of Growth Conditions on Structural Properties of ZnO Nanostructures on Sapphire Substrate by Metal-Organic Chemical Vapor Deposition. NANOSCALE RESEARCH LETTERS 2009; 4:377-384. [PMID: 20596413 PMCID: PMC2894013 DOI: 10.1007/s11671-009-9257-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Accepted: 01/08/2009] [Indexed: 05/27/2023]
Abstract
ZnO was grown on sapphire substrate by metal-organic chemical vapor deposition using the diethylzinc (DEZn) and oxygen (O(2)) as source chemicals at 500 degrees C. Influences of the chamber pressure and O(2)/DEZn ratio on the ZnO structural properties were discussed. It was found that the chamber pressure has significant effects on the morphology of ZnO and could result in various structures of ZnO including pyramid-like, worm-like, and columnar grain. When the chamber pressure was kept at 10 Torr, the lowest full width at half-maximum of ZnO (002) of 175 arc second can be obtained. On the other hand, by lowering the DEZn flow rate, the crystal quality of ZnO can be improved. Under high DEZn flow rate, the ZnO nanowall-network structures were found to grow vertically on the sapphire substrate without using any metal catalysts. It suggests that higher DEZn flow rate promotes three-dimensional growth mode resulting in increased surface roughness. Therefore, some tip on the ZnO surface could act as nucleation site. In this work, the growth process of our ZnO nanowall networks is said to follow the self-catalyzed growth mechanism under high-DEZn flow rate.
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Affiliation(s)
- CC Wu
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung, 402, Taiwan, ROC
| | - DS Wuu
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung, 402, Taiwan, ROC
| | - PR Lin
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung, 402, Taiwan, ROC
| | - TN Chen
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung, 402, Taiwan, ROC
| | - RH Horng
- Institute of Precision Engineering, National Chung Hsing University, Taichung, 402, Taiwan, ROC
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