[15a-A404-1~11] 17.3 Layered materials

△ [15a-A404-10] The Band Structure Evaluation of MoS_2(1-x)Te_2x

〇Yusuke Hibino^1,2, Kota Yamazaki¹, Yusuke Hashimoto¹, Yuya Oyanagi¹, Naomi Sawamoto¹, Hideaki Machida³, Masato Ishikawa³, Hiroshi Sudoh³, Hitoshi Wakabayashi⁴, Atsushi Ogura¹ (1.Meiji Univ., 2.JSPS Research Fellow, 3.Gas Phase Growth Ltd., 4.Tokyo Tech.)

Keywords:Layered material, Alloy, Band structure

In this study, the band structure evaluation MoS_2(1-x)Te_2x, the alloy of MoS₂ and MoTe₂, is reported. MoS₂ and MoTe₂ were co-sputtered in order to obtain the precursor for the following thermal treatment in Te or S ambient with organic precursor. Spectroscopic ellipsometry, X-ray photoelectron spectroscopy and X-ray diffraction evaluations were carried out to obtain the bandgap, the valence band edge positions, and the physical strucuture, respectively. From these results, it was revealed that the band structure shifts according to the Te concentration.