Epitaxial II–VI tripod nanocrystals : a generalization of van der Waals epitaxy for nonplanar polytypic nanoarchitectures
We report for the first time the synthesis of nonplanar epitaxial tripod nanocrystals of II–VI compounds (ZnO, ZnS, ZnSe, ZnTe, CdS, CdSe, and CdTe) on muscovite mica substrate. With CdS as a case study, we conclude via Raman spectroscopy and electron microscopy studies that the tripods, which are f...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/96678 http://hdl.handle.net/10220/10362 |
| _version_ | 1826123817360031744 |
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| author | Utama, Muhammad Iqbal Bakti Zhang, Qing Jia, Shuangfeng Li, Dehui Wang, Jianbo Xiong, Qihua |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Utama, Muhammad Iqbal Bakti Zhang, Qing Jia, Shuangfeng Li, Dehui Wang, Jianbo Xiong, Qihua |
| author_sort | Utama, Muhammad Iqbal Bakti |
| collection | NTU |
| description | We report for the first time the synthesis of nonplanar epitaxial tripod nanocrystals of II–VI compounds (ZnO, ZnS, ZnSe, ZnTe, CdS, CdSe, and CdTe) on muscovite mica substrate. With CdS as a case study, we conclude via Raman spectroscopy and electron microscopy studies that the tripods, which are found to be polytypic, followed a seeded growth mechanism. The epitaxy, manifested by the in-plane alignment of the legs of the tripods within a substrate, is attributed to the van der Waals interaction between the tripod bases and the mica surface, instead of to the covalent chemical bond which would require lattice matching between the epilayer and the substrate. The results demonstrated herein could have widespread immediate implications, including the potential of van der Waals epitaxy to be applicable in producing ordered arrays of more complex nanoarchitectures from various classes of compounds toward a broad range of technological applications. |
| first_indexed | 2024-10-01T06:10:51Z |
| format | Journal Article |
| id | ntu-10356/96678 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:10:51Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/966782020-03-07T12:31:21Z Epitaxial II–VI tripod nanocrystals : a generalization of van der Waals epitaxy for nonplanar polytypic nanoarchitectures Utama, Muhammad Iqbal Bakti Zhang, Qing Jia, Shuangfeng Li, Dehui Wang, Jianbo Xiong, Qihua School of Physical and Mathematical Sciences School of Electrical and Electronic Engineering We report for the first time the synthesis of nonplanar epitaxial tripod nanocrystals of II–VI compounds (ZnO, ZnS, ZnSe, ZnTe, CdS, CdSe, and CdTe) on muscovite mica substrate. With CdS as a case study, we conclude via Raman spectroscopy and electron microscopy studies that the tripods, which are found to be polytypic, followed a seeded growth mechanism. The epitaxy, manifested by the in-plane alignment of the legs of the tripods within a substrate, is attributed to the van der Waals interaction between the tripod bases and the mica surface, instead of to the covalent chemical bond which would require lattice matching between the epilayer and the substrate. The results demonstrated herein could have widespread immediate implications, including the potential of van der Waals epitaxy to be applicable in producing ordered arrays of more complex nanoarchitectures from various classes of compounds toward a broad range of technological applications. 2013-06-13T07:59:30Z 2019-12-06T19:33:52Z 2013-06-13T07:59:30Z 2019-12-06T19:33:52Z 2012 2012 Journal Article Utama, M. I. B., Zhang, Q., Jia, S., Li, D., Wang, J., & Xiong, Q. (2012). Epitaxial II–VI Tripod Nanocrystals: A Generalization of van der Waals Epitaxy for Nonplanar Polytypic Nanoarchitectures. ACS Nano, 6(3), 2281-2288. 1936-0851 https://hdl.handle.net/10356/96678 http://hdl.handle.net/10220/10362 10.1021/nn204344z en ACS nano © 2012 American Chemical Society. |
| spellingShingle | Utama, Muhammad Iqbal Bakti Zhang, Qing Jia, Shuangfeng Li, Dehui Wang, Jianbo Xiong, Qihua Epitaxial II–VI tripod nanocrystals : a generalization of van der Waals epitaxy for nonplanar polytypic nanoarchitectures |
| title | Epitaxial II–VI tripod nanocrystals : a generalization of van der Waals epitaxy for nonplanar polytypic nanoarchitectures |
| title_full | Epitaxial II–VI tripod nanocrystals : a generalization of van der Waals epitaxy for nonplanar polytypic nanoarchitectures |
| title_fullStr | Epitaxial II–VI tripod nanocrystals : a generalization of van der Waals epitaxy for nonplanar polytypic nanoarchitectures |
| title_full_unstemmed | Epitaxial II–VI tripod nanocrystals : a generalization of van der Waals epitaxy for nonplanar polytypic nanoarchitectures |
| title_short | Epitaxial II–VI tripod nanocrystals : a generalization of van der Waals epitaxy for nonplanar polytypic nanoarchitectures |
| title_sort | epitaxial ii vi tripod nanocrystals a generalization of van der waals epitaxy for nonplanar polytypic nanoarchitectures |
| url | https://hdl.handle.net/10356/96678 http://hdl.handle.net/10220/10362 |
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