By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Proteins is the subject of a report. According to news reporting from Berkeley, California, by NewsRx journalists, research stated, "Monolithic integration of III-V optoelectronic devices with materials for various functionalities inexpensively is always desirable. Polysilicon (poly-Si) is an ideal platform because it is dopable and semiconducting, and can be deposited and patterned easily on a wide range of low cost substrates."
The news correspondents obtained a quote from the research from the University of California, "However, the lack of crystalline coherency in poly-Si poses an immense challenge for high-quality epitaxial growth. In this work, we demonstrate, for the first time, direct growth of micrometer-sized InGaAs/GaAs nanopillars on polysilicon. Transmission electron microscopy shows that the micrometer-sized pillars are single-crystalline with pure wurzite-phase, far exceeding the substrate crystal grain size similar to 100 nm. The high quality growth is enabled by the unique tapering geometry at the base of the nanostructure, which reduces the effective InGaAs/Si contact area to
According to the news reporters, the research concluded: "These promising results open up a pathway for low-cost synergy of optoelectronics with other technologies such as CMOS integrated circuits, sensing, nanofluidics, thin film transistor display, photovoltaics, and so forth."
For more information on this research see: Single Crystalline InGaAs Nanopillar Grown on Polysilicon with Dimensions beyond the Substrate Grain Size Limit. Nano Letters, 2013;13(12):5931-5937. Nano Letters can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Nano Letters - www.pubs.acs.org/journal/nalefd)
Our news journalists report that additional information may be obtained by contacting K.W. Ng, University of California, Dept. of Elect Engn & Comp Sci, Berkeley, CA 94720, United States. Additional authors for this research include T.T.D. Tran, W.S. Ko, R. Chen, F.L. Lu and C.J. Chang-Hasnain (see also Proteins).
Keywords for this news article include: Berkeley, California, Crystallins, Eye Proteins, United States, North and Central America
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