News Column

Reports from S. Kumar et al Highlight Recent Findings in Clinical Trials and Studies

February 3, 2014

By a News Reporter-Staff News Editor at Clinical Trials Week -- Fresh data on Clinical Research are presented in a new report. According to news reporting originating in Berlin, Germany, by NewsRx journalists, research stated, "A comparative study of beta gallium oxide (beta-Ga2O3) nanowires (NWs) grown on different substrates such as silicon (Si), sapphire, and GaN/sapphire has been reported. Field emission scanning electron microscopy (FESEM) results revealed that the beta-Ga2O3 NWs grown on GaN/sapphire substrate were comparatively more aligned than grown on other substrates."

The news reporters obtained a quote from the research, "The diameter of the NWs varied from 150 to 400 nm, and their length ranging up to tens of micrometers. X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM) showed the single crystalline monoclinic nature of NWs. The Raman spectra acquired from three samples revealed similar features consisting of two active modes such as mid and high frequency. However, low frequency mode was absent in our results. The cathodoluminescence (CL) spectra of beta-Ga2O3 NWs on different substrates showed a strong broad UV-blue emission band and a weak red emission band in all the samples."

According to the news reporters, the research concluded: "Hence, the morphologies and structural properties of the beta-Ga2O3 NWs grown on three substrates showed some observable changes, while their optical properties were quite similar."

For more information on this research see: A comparative study of beta-Ga2O3 nanowires grown on different substrates using CVD technique. Journal of Alloys and Compounds, 2014;587():812-818. Journal of Alloys and Compounds can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier -; Journal of Alloys and Compounds -

Our news correspondents report that additional information may be obtained by contacting S. Kumar, Helmholtz Center Berlin Mat & Energy, D-14109 Berlin, Germany. Additional authors for this research include C. Tessarek, S. Christiansen and R. Singh (see also Clinical Research).

Keywords for this news article include: Berlin, Europe, Germany, Nanowire, Nanotechnology, Clinical Research, Emerging Technologies, Clinical Trials and Studies

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Source: Clinical Trials Week

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