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New Nanowires Findings Has Been Reported by Investigators at Fudan University (Photoluminescence of the single wurtzite GaAs nanowire with different...

July 11, 2014



New Nanowires Findings Has Been Reported by Investigators at Fudan University (Photoluminescence of the single wurtzite GaAs nanowire with different powers and temperatures)

By a News Reporter-Staff News Editor at Science Letter -- New research on Nanowires is the subject of a report. According to news reporting originating from Shanghai, People's Republic of China, by NewsRx correspondents, research stated, "High quality GaAs nanowires with wurtzite structure were grown by molecular beam epitaxy. The micro-photoluminescence from a single GaAs nanowire is carried out with different excitation powers to investigate both intrinsic and extrinsic emissions in wurtzite GaAs nanowires."

Our news editors obtained a quote from the research from Fudan University, "The variation of emission energy of free exciton peak with temperature is also investigated. It is found that the electron-phonon interaction is weaker in wurtzite GaAs than that in its zinc-blende counterpart. The time-resolved photoluminescence is performed to study the life time of free exciton at last."

According to the news editors, the research concluded: "By capping GaAs nanowires with an Al0.3Ga0.7As shell layer, the life time of free exciton increases significantly, which provides the possibility for the device application of the GaAs-based nanowires."

For more information on this research see: Photoluminescence of the single wurtzite GaAs nanowire with different powers and temperatures. Journal of Luminescence, 2014;152():258-261. Journal of Luminescence can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Luminescence - www.elsevier.com/wps/product/cws_home/505700)

The news editors report that additional information may be obtained by contacting Z.Y. Lu, Fudan University, Shanghai 200433, People's Republic of China. Additional authors for this research include S.X. Shi, J. Lu and P.P. Chen (see also Nanowires).

Keywords for this news article include: Asia, Shanghai, Nanotechnology, Emerging Technologies, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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