| Literature DB >> 17696557 |
Chen Chen1, Shyemaa Shehata, Cécile Fradin, Ray LaPierre, Christophe Couteau, Gregor Weihs.
Abstract
Al0.37Ga0.63As nanowires (NWs) were grown in a molecular beam epitaxy system on GaAs(111)B substrates. Micro-photoluminescence measurements and energy dispersive X-ray spectroscopy indicated a core--shell structure and Al composition gradient along the NW axis, producing a potential minimum for carrier confinement. The core--shell structure formed during growth as a consequence of the different Al and Ga adatom diffusion lengths.Entities:
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Year: 2007 PMID： 17696557 DOI： 10.1021/nl070874k
Source DB: PubMed Journal: Nano Lett ISSN： 1530-6984 Impact factor: 11.189