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Defect-free self-catalyzed GaAs/GaAsP nanowire quantum dots grown on silicon substrate
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Wu, Jiang, Ramsay, Andrew, Sánchez, Ana M., Zhang, Yunyan, Kim, Dongyoung, Brossard, Frederic, Hu, Xian, Benamara, Mourad, Ware, Morgan E., Mazur, Yuriy I., Salamo, Gregory J., Aagesen, Martin, Wang, Zhiming and Liu, Huiyun (2016) Defect-free self-catalyzed GaAs/GaAsP nanowire quantum dots grown on silicon substrate. Nano Letters, 16 (1). pp. 504-511. doi:10.1021/acs.nanolett.5b04142 ISSN 1530-6984.
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Official URL: http://dx.doi.org/10.1021/acs.nanolett.5b04142
Abstract
The III–V nanowire quantum dots (NWQDs) monolithically grown on silicon substrates, combining the advantages of both one- and zero-dimensional materials, represent one of the most promising technologies for integrating advanced III–V photonic technologies on a silicon microelectronics platform. However, there are great challenges in the fabrication of high-quality III–V NWQDs by a bottom-up approach, that is, growth by the vapor–liquid–solid method, because of the potential contamination caused by external metal catalysts and the various types of interfacial defects introduced by self-catalyzed growth. Here, we report the defect-free self-catalyzed III–V NWQDs, GaAs quantum dots in GaAsP nanowires, on a silicon substrate with pure zinc blende structure for the first time. Well-resolved excitonic emission is observed with a narrow line width. These results pave the way toward on-chip III–V quantum information and photonic devices on silicon platform.
Item Type: | Journal Article | ||||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||
Journal or Publication Title: | Nano Letters | ||||||||||
Publisher: | American Chemical Society | ||||||||||
ISSN: | 1530-6984 | ||||||||||
Official Date: | 13 January 2016 | ||||||||||
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Volume: | 16 | ||||||||||
Number: | 1 | ||||||||||
Page Range: | pp. 504-511 | ||||||||||
DOI: | 10.1021/acs.nanolett.5b04142 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
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