[20a-F210-1~6] 15.2 II-VI and related compounds

[20a-F210-5] Observation of Absorption Edge and Electronic Structure Calculation of Rocksalt-structured Mg_xZn_1-xO

〇Takeyoshi Onuma¹, Mizuki Ono¹, Kyohei Ishii², Kentaro Kaneko², Tomohiro Yamaguchi¹, Shizuo Fujita², Tohru Honda¹ (1.Kogakuin Univ., 2.Kyoto Univ.)

Keywords:MgZnO, Ultra wide bandgap, Electronic structure

Rocksalt-structured (RS-) Mg_xZn_1-xO is a promising candidate for light-emitting-devices operating in far-UV (160-200 nm) and deep-UV (200-250 nm) spectral ranges. In this study, absorption edge was determined by optical measurement, and the MgO molar fraction x dependence of bandgap is discussed using the electronic structure obtained by the density functional theory calculations.