Opportunities and future directions for Ga2O3

Michael A. Mastro, Akito Kuramata, Jacob Calkins, Jihyun Kim, Fan Ren, S. J. Pearton

Research output: Contribution to journalArticlepeer-review

304 Citations (Scopus)


The β-polytype of Ga2O3 has a bandgap of ~4.8 eV, can be grown in bulk form from melt sources, has a high breakdown field of ∼8 MV.cm−1 and is promising for power electronics and solar blind UV detectors, as well as extreme environment electronics (high temperature, high radiation, and high voltage (low power) switching. High quality bulk Ga2O3 is now commercially available from several sources and n-type epi structures are also coming onto the market. There are also significant efforts worldwide to grow more complex epi structures, including β-(AlxGa1x)2O3/Ga2O3 and β-(InxGa1x)2O3/Ga2O3 heterostructures, and thus this materials system is poised to make rapid advances in devices. To fully exploit these advantages, advances in bulk and epitaxial crystal growth, device design and processing are needed. This article provides some perspectives on these needs.

Original languageEnglish
Pages (from-to)P356-P359
JournalECS Journal of Solid State Science and Technology
Issue number5
Publication statusPublished - 2017

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials


Dive into the research topics of 'Opportunities and future directions for Ga2O3'. Together they form a unique fingerprint.

Cite this