MoS2 박막의 구조와 광학적 특성

• 영문명: Structural and Optical Properties of MoS2 Films
• 발행기관: 조선대학교 교과교육연구소
• 저자명: 서동주(Dong Ju Seo) 양혜란(Hye Ran Yang)
• 간행물 정보: 『미래교육현장연구』교과교육연구 25권 1호, 1~9쪽, 전체 9쪽
• 주제분류: 사회과학 > 교육학
• 파일형태: PDF
• 발행일자: 2004.01.30

영문 초록

MoS2 films were deposited on the glass substrates by spray pyrolysis. Crystal structure, surface morphology and chemical composition of MoS2 films were investigated by x-ray diffraction(XRD), scanning electron microscope(SEM) and energy dispersive x-ray spectroscopy(EDS). The optical absorption spectra of the samples were measured at 293 K using the UV-NIR spectrophotometer. The crystal structure of MoS2 films deposited at 400 ℃ was hexagonal with lattice constant ao = 3.160 Å, co = 12.295 Å. The grain size of MoS2 films were increased with increasing the deposition temperature of the samples. The chemical composition of Mo and S of the samples were identified as 33.4 and 66.6 at.% in the limits of detector resolution for measuring EDS spectra. The optical energy band gap of the MoS2 films deposited at 400 ℃ was found to be 3.138 eV for the direct transition and 2.775 eV for the indirect transition at 293 K. The optical energy band gaps of the MoS2 films were decreased with increasing growth temperature of the samples.

목차

Abstract

Ⅰ. 서론

Ⅱ. 실험 및 측정

Ⅲ. 실험결과 및 고찰

Ⅳ. 결론

참고문헌