Mass production and characterization of free-standing ZnO nanotripods by thermal chemical vapor deposition
- Authors
- Choi, Min-Yeol; Park, Hyun-Kyu; Jin, Mi-Jin; Yoon, Dae Ho; Kim, Sang-Woo
- Issue Date
- 15-Jan-2009
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Chemical vapor deposition processes; Nanomaterials; Semiconducting II-VI materials
- Citation
- JOURNAL OF CRYSTAL GROWTH, v.311, no.3, pp 504 - 507
- Pages
- 4
- Journal Title
- JOURNAL OF CRYSTAL GROWTH
- Volume
- 311
- Number
- 3
- Start Page
- 504
- End Page
- 507
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/27284
- DOI
- 10.1016/j.jcrysgro.2008.09.057
- ISSN
- 0022-0248
1873-5002
- Abstract
- Mass-productive free-standing ZnO nanotripods were obtained by thermal chemical vapor deposition without introduction of catalysts and substrates. Three arms of ZnO nanotripods had lengths ranging from 300 nm to 1.0 mu m and a single-crystal line hexagonal structure. It was found that an inverted triangle-shaped zinc blende ZnO core is located at the center of the grown ZnO nanotripod and a twin structure exists at the interface between each arm. The three arms with extremely narrow diameters below 20 nm were grown along to the [0 0 0 1] c-axis and the twin boundary was identified as (0 1 (1) over bar 3). ZnO nanotripods exhibited a relatively weak deep-level emission band as well as strong near band-edge emission in the room-temperature photoluminescence measurement, indicating the high optical quality and low defect density of the ZnO nanotripods. (C) 2008 Elsevier B.V. All rights reserved.
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