Deterministic Two-Dimensional Polymorphism Growth of Hexagonal n-Type SnS2 and Orthorhombic p-Type SnS Crystals
SCIE
SCOPUS
- Title
- Deterministic Two-Dimensional Polymorphism Growth of Hexagonal n-Type SnS2 and Orthorhombic p-Type SnS Crystals
- Authors
- Ahn, JH; Lee, MJ; Heo, H; Sung, JH; Kim, K; Hwang, H; Jo, MH
- Date Issued
- 2015-06
- Publisher
- AMER CHEMICAL SOC
- Abstract
- van der Waals layered materials have large crystal anisotropy and crystallize spontaneously into two-dimensional (2D) morphologies. Two-dimensional materials with hexagonal lattices are emerging 2D confined electronic systems at the limit of one or three atom thickness. Often these 2D lattices also form orthorhombic symmetries, but these materials have not been extensively investigated, mainly due to thermodynamic instability during crystal growth. Here, we show controlled polymorphic growth of 2D tin-sulfide crystals of either hexagonal SnS2 or orthorhombic SnS. Addition of H2 during the growth reaction enables selective determination of either n-type SnS2 or p-type SnS 2D crystal of dissimilar energy band gap of 2.77 eV (SnS2) or 1.26 eV (SnS) as a final product. Based on this synthetic 2D polymorphism of p-n crystals, we also demonstrate p-n heterojunctions for rectifiers and photovoltaic cells, and complementary inverters.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/35652
- DOI
- 10.1021/ACS.NANOLETT.5B00079
- ISSN
- 1530-6984
- Article Type
- Article
- Citation
- NANO LETTERS, vol. 15, no. 6, page. 3703 - 3708, 2015-06
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.