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http://dx.doi.org/10.3740/MRSK.2007.17.1.001

Growth of GaN Thin-Film from Spin Coated GaOOH Precursor  

Lee, Jae-Bum (Department of Materials Science and Engineering, Hanbat National University)
Kim, Seon-Tai (Department of Materials Science and Engineering, Hanbat National University)
Publication Information
Korean Journal of Materials Research / v.17, no.1, 2007 , pp. 1-5 More about this Journal
Abstract
GaN thin fan were grown by spin coated colloidal GaOOH precursor. Polycrystalline GaNs with crystalline size of $10{\sim}100nm$ were grown on $SiO_2$ substrate. The shape of crystallite above $900^{\circ}C$ had the hexagonal plate and column type. X-ray diffraction patterns for them correspond to those of the hexagonal wurtzite GaN. With increasing droplets. i.e, thickness of deposited layers, XRD intensity increased. PL (photoluminescence) spectrum consisted with an weak near band-edge emission at 3.45 eV and a broad donor-acceptor emission band at 3.32 eV. From the low temperature PL measurement on GaN grown at $800^{\circ}C$ that the shallow donor-acceptor recombination induced emission was more intense than the near band-edge excitonic emission.
Keywords
GaN; GaOOH; precursor; spin coating;
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