Journal
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
Volume 78, Issue -, Pages 132-146Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2017.10.040
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- Leibniz Society
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Monoclinic beta-Ga2O3 (bandgap = 4.85 eV) is a transparent semiconducting oxide with very promising perspectives especially in solar blind UV photodetectors and high power device applications. In particular, for high power switching beta-Ga2O3 is predicted to outperform the leading technology based on SiC and GaN, due to a much higher calculated critical field strength. Another significant advantage of beta-Ga2O3, especially in view of large-scale production, is that large bulk crystals can be grown from the melt by standard techniques, making available reasonably-priced native substrates for the growth of high quality homoepitaxial layers, which is essential for the fabrication of high performance power devices. This review article focuses on the growth of bulk and homoepitaxial beta-Ga2O3, summarizing the research work carried out in this field and pointing out the strengths and the main challenges of different growth techniques. The impressive material development already achieved for both bulk and epitaxial beta-Ga2O3 crystals has enabled the fabrication of prototype devices with very promising performances, demonstrating the outstanding potential of beta-Ga2O3 for power electronics applications.
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