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  1. No Access

    Article

    Correlation of Surface Morphologies with Mn Compositions of Ga1−xMnxAs Epilayers Grown by Liquid Phase Epitaxy

    In this letter, we investigated the correlation between as-grown surface morphologies and Mn compositions of Ga1-xMnxAs epilayers - a III-V diluted magnetic semiconductor - grown by liquid phase epitaxy (LPE). Ga

    Hwa-Mok Kim, Jae-Hyeon Leem, Sung Woo Choi… in MRS Online Proceedings Library (2011)

  2. No Access

    Article

    Growth of GaN Nanorods on (0001) Sapphire Substrates by Hydride Vapor Phase Epitaxy

    GaN nanorods were grown on (0001) sapphire substrates by hydride vapor phase epitaxy HVPE) through a self-assemble process. The nanorods were grown at high growth rate, with the c-axis maintained perpendicular...

    Hwa-Mok Kim, Doo Soo Kim, YoungWook Chang, Deuk Young Kim… in MRS Online Proceedings Library (2011)

  3. No Access

    Article

    Growth and applications of HVPE-GaN nanorods

    We demonstrate the properties of gallium nitride nanorods by hydride vapor phase epitaxy (HVPE). Single crystalline gallium nitride nanorods are formed on a sapphire substrate by HVPE. Single crystalline p-typ...

    Tae Won Kang, Hwa-Mok Kim in Metals and Materials International (2004)

  4. No Access

    Article

    Growth of InGaN Nanorods as the Blue Light Source for White Light Emitting Devices

    This work demonstrates the properties of InGaN nanorod arrays with various In mole fractions by modified HVPE using In metal at the low growth temperature. The nanorods grown on (0001) sapphire substrates are ...

    Hwa-Mok Kim, Tae Won Kang, Kwan Soo Chung in MRS Online Proceedings Library (2003)

  5. No Access

    Article

    Preparation of 30×30 mm2 Free-Standing GaN Wafer by Mechanical Liftoff and Optical Properties in The Backside of The Free GaN by Cathodoluminescence

    In this study, free-standing GaN was produced from 350- to 400-μm-thick GaN films grown on sapphire by using hydride vapor phase epitaxy. The thick films were separated from the substrate by using the mechanic...

    Hwa-Mok Kim, Jae-Eung Oh, Tae-Won Kang in MRS Online Proceedings Library (2001)