Thermal conductivity measurement of diamond and β-Ga<inf>2</inf>O<inf>3</inf> thin films by a 3ω method
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2018-04-01 |
| Authors | Shinichiro Suzuki, Shinya Ohmagari, Yusuke Akutsu, Naoki Okamoto, Takeyasu Saito |
| Institutions | Osaka Prefecture University, National Institute of Advanced Industrial Science and Technology |
Abstract
Section titled “Abstract”Ga <sub xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>2</sub> O <sub xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>3</sub> , is one of the promising candidates as wide bandgap material, having potential advantage over SiC and GaN. The low thermal conductivity of Ga <sub xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>2</sub> O <sub xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>3</sub> is a major drawback, however, there are not much reports for thermal conductivity measurement for Ga <sub xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>2</sub> O <sub xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>3</sub> thin films. In this study, the thermal conductivity of a single-crystal and polycrystalline diamond and a single-crystal β-Ga <sub xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>2</sub> O <sub xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>3</sub> [-201] free-standing substrate was evaluated by the 3ω method. 23.3, 1810, and 1380 W/m-K, were obtained as thermal conductivity of β-Ga <sub xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>2</sub> O <sub xmlns:mml=“http://www.w3.org/1998/Math/MathML” xmlns:xlink=“http://www.w3.org/1999/xlink”>3</sub> [-201], Ila-type single crystal diamond, and polycrystalline diamond, respectively.
Tech Support
Section titled “Tech Support”Original Source
Section titled “Original Source”References
Section titled “References”- 1990 - Thermal conductivity measurement from 30 to 750K: the 3? method [Crossref]
- 2014 - ?-Ga2O3 and single-crystal phosphors for high-brightness white LEDs & LDs, and ?-Ga2O3 potential for next generation of power devices