各向异性
电阻率和电导率
材料科学
带隙
电子迁移率
简并能级
凝聚态物理
单晶
吸收(声学)
结晶学
分析化学(期刊)
光电子学
光学
化学
物理
色谱法
量子力学
复合材料
作者
Naoyuki Ueda,Hideo Hosono,Ryuta Waseda,Hiroshi Kawazoe
摘要
Anisotropy of electrical and optical properties in β-Ga2O3 single crystals has been investigated at room temperature. The conductivity and mobility of the degenerate sample along the direction of b and c axes are 38 Ω−1 cm−1, 46 cm2 V−1 s−1, and 2.2 Ω−1 cm−1, 2.6 cm2 V−1 s−1, respectively. The absorption edges of the insulating sample for light polarized E//b and E//c were 4.79 and 4.52 eV, respectively. The rate of the band gap widening with increasing carrier concentration was much larger for E//b than E//c. The origin of these properties are discussed by considering the crystal and electronic structure of β-Ga2O3.
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