Structure Optimization of Low-Dimensional Quantum Dots via Anisotropic Surface Energy
- Authors
- Yang, Lan-Hee; Hyun, Sangil; Koo, Eunhae; Ahn, Dong June
- Issue Date
- 3월-2018
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Quantum dot; First principle calculation; Shape effect; Surface energy
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.72, no.5, pp.582 - 587
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 72
- Number
- 5
- Start Page
- 582
- End Page
- 587
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/76841
- DOI
- 10.3938/jkps.72.582
- ISSN
- 0374-4884
- Abstract
- Semiconductor quantum dots (QDs) exhibit remarkable photostability, large absorption spectra, tunable emission peaks, and high quantum yields. These features originate from their lowdimensionality. It is necessary to control the shape of QDs because their specific characteristics are normally determined by their particular shape and size. We employed first-principle calculations to identify the optimal structures of CdSe quantum dots and investigated the shape-determining mechanism governing the formation of low-dimensional nanomaterials. The anisotropy of surface energy is a key factor determining the shape of nanomaterials and we suggest how to control their geometry and characteristics by adjusting the surface energy.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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