층상구조 기판을 이용한 비층상 구조 물질의 이차원 나노구조 성장
- Title
- 층상구조 기판을 이용한 비층상 구조 물질의 이차원 나노구조 성장
- Authors
- 황혜인
- Date Issued
- 2017
- Publisher
- 포항공과대학교
- Abstract
- This research investigates vapor phase heteroepitaxial growth of non-layered materials in two-dimensional (2D) nanostructure utilizing layer-structured substrate. We grew atomically thin trigonal selenium (t-Se) single crystals on interlayers of muscovite mica. Despite its preference of crystallization into one-dimensional (1D) structure, t-Se single crystals grew two-dimensionally in uniform orientations having (0001) plane parallel to the surface of substrate, with thicknesses < 10 nm and sizes ~ 100 µm. We suggest that 2D spatial confinement between mica layers and potassium ionic layers in muscovite induced this unique growth pattern. This growth method using layer-structured substrate can be adopted to 2D nanostructure growth of other non-layered materials. Furthermore, the 2D single crystal of t-Se can be a platform for quantitative study how light behaves in chiral matter which has atomic scale.
- URI
- http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002375882
https://oasis.postech.ac.kr/handle/2014.oak/93098
- Article Type
- Thesis
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