Effect of Growth Conditions on the Cathodoluminescence of β-Ga2O3 Crystals Grown by Electric Current Heating Method

Kenichi Suzuki; Yuichiro  Kuroki; Tomoichiro Okamoto; Masasuke Takata

doi:10.4028/www.scientific.net/KEM.301.181

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 301Effect of Growth Conditions on the...

Effect of Growth Conditions on the Cathodoluminescence of β-Ga₂O₃ Crystals Grown by Electric Current Heating Method

Abstract:

Beta gallium oxide (β-Ga2O3) crystals were grown on β-Ga2O3 ceramics heated by electric current under vacuum at various ambient temperatures. From cathodoluminescence at room temperature, emission peaks at 2.9 and 3.5 eV were clearly observed. With increasing ambient temperature, the relative intensity of ultraviolet emission (3.5 eV) to blue emission (2.9 eV) showed a peak at 400oC. These results suggest that the ambient temperature during the electric current heating of β-Ga2O3 ceramics in vacuum is one of the most effective factors for the ultraviolet emissive β-Ga2O3 crystal.

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Key Engineering Materials (Volume 301)

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181-184

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.301.181

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Online since:

January 2006

Authors:

Kenichi Suzuki, Yuichiro Kuroki, Tomoichiro Okamoto, Masasuke Takata

Keywords:

Cathodoluminescence, Crystal Growth, Electric Current Heating Method, Gallium Oxide, Growth Conditions

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