화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center))
권호 21권 1호
발표분야 무기재료
제목 Heterostructure of Mo/WSe2 via colloidal synthesis
초록 Fabrication of 2D heterostructure of transition metal dichalcogenides (TMDs) promises a range of opportunities to broaden the physical properties of 2D semiconductor materials. Here we report the colloidal synthesis of stable heterostructure of WSe2/MoSe2 by controlling the delivery of precursors during crystal growth. 2D heterostructures are grwon via a two-step process. We confirm the growth morphology of the heterostructure is strongly dependent on the T ramping rate and Se precursor injection. We also propose a simple mechanism showing the favorable nucleation sites for the heterostructure formation via interaction between precursors and oleic acid. Our results suggest new methods to create TMDs heterostructures and highlight the improtnace of ligand chemistry governing the colloidal synthesis of semiconducting TMD structures.
저자 신내철
소속 인하대
키워드 transition metal dichalcogenide; heterostructure
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