
Proceedings Paper
Realization of periodic InAs QDs by in-situ four-beam laser-interference irradiation on the wetting layerFormat | Member Price | Non-Member Price |
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Paper Abstract
In this paper, during InAs/GaAs (001) quantum dot molecular beam epitaxy growth, four-beam pulsed laser-interference was used to in-situ irradiate on the wetting layer with an InAs coverage of 1.1 monolayer. Significant atomic layer removal and periodic nanostructures including nanoholes and nanoislands were obtained. These periodic nanostructures had a significant influence on quantum dot growth. Especially for the structure of nano-island, quantum dots preferentially nucleated at the edges of them. When the nano-island size becomes small enough, ordered quantum dot arrays are directly achieved on smooth GaAs surface with a follow-up InAs deposition accompanied by the disappearance of the nanoislands. This finding provides a potential technique leading to site-controlled and defect-free quantum dot fabrication.
Paper Details
Date Published: 5 November 2018
PDF: 7 pages
Proc. SPIE 10814, Optoelectronic Devices and Integration VII, 108141M (5 November 2018); doi: 10.1117/12.2513815
Published in SPIE Proceedings Vol. 10814:
Optoelectronic Devices and Integration VII
Xuping Zhang; Baojun Li; Changyuan Yu; Xinliang Zhang, Editor(s)
PDF: 7 pages
Proc. SPIE 10814, Optoelectronic Devices and Integration VII, 108141M (5 November 2018); doi: 10.1117/12.2513815
Show Author Affiliations
Linyun Yang, Soochow Univ. (China)
Xinning Yang, Soochow Univ. (China)
Lili Miao, Soochow Univ. (China)
Wei Zhang, Suzhou Institute of Nano-Tech and Nano-Bionics (China)
Xinning Yang, Soochow Univ. (China)
Lili Miao, Soochow Univ. (China)
Wei Zhang, Suzhou Institute of Nano-Tech and Nano-Bionics (China)
Dayun Huo, Mechanical and Electrical Products, and Vehicle Testing Ctr. of Jiangsu Entry-Exit Inspection and Quarantine Bureau (China)
Zhenwu Shi, Soochow Univ. (China)
Changsi Peng, Soochow Univ. (China)
Univ. of Bedfordshire (United Kingdom)
Zhenwu Shi, Soochow Univ. (China)
Changsi Peng, Soochow Univ. (China)
Univ. of Bedfordshire (United Kingdom)
Published in SPIE Proceedings Vol. 10814:
Optoelectronic Devices and Integration VII
Xuping Zhang; Baojun Li; Changyuan Yu; Xinliang Zhang, Editor(s)
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