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Lee, Geunsik
Electronic Structure and Transport in Condensed Materials
Research Interests
  • open quantum system, non-equilibrium electron transport
  • electron correlation, dynamical mean field theory
  • 2D materials, metal complexes

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Electronic structure and optical absorption spectra of CdSe covered with ZnSe and ZnS epilayers

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dc.contributor.author Yun, So Jeong ko
dc.contributor.author Lee, Geunsik ko
dc.contributor.author Kim, Jai Sam ko
dc.contributor.author Shin, Seung Koo ko
dc.contributor.author Yoon, Young-Gui ko
dc.date.available 2015-08-03T07:46:18Z -
dc.date.created 2015-08-03 ko
dc.date.issued 2006-02 ko
dc.identifier.citation SOLID STATE COMMUNICATIONS, v.137, no.6, pp.332 - 337 ko
dc.identifier.issn 0038-1098 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/13293 -
dc.description.abstract Using the first-principles methods we compute the electronic structure and the absorption spectra for a wurtzite CdSe (0001) slab covered with zincblende ZnSe and ZnS epilayers. For each structure we compute the DOS and the imaginary part of the dielectric function. We find that the semiconductor passivation shifts the 'near Fermi-level' states of the bare CdSe slab down to lower energy levels. The migration suggests the decrease of surface effects and energy loss. We observe the substantial reduction of the abnormal peaks in the absorption spectra of the bare CdSe slab, which seems to be a consequence of the DOS migration. This is consistent with the experimental results that a proper passivation enhance the luminescence efficiency. We also study the case that the epilayer surface is terminated with PH3 and find the PH3 passivation also reduces the surface state to some extent. (c) 2005 Elsevier Ltd. All rights reserved ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD ko
dc.title Electronic structure and optical absorption spectra of CdSe covered with ZnSe and ZnS epilayers ko
dc.title.alternative Electronic structure and optical absorption spectra of CdSe covered with ZnSe and ZnS epilayers ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-31444453474 ko
dc.identifier.wosid 000235426400011 ko
dc.type.rims ART ko
dc.description.wostc 8 *
dc.description.scopustc 9 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1016/j.ssc.2005.10.029 ko
dc.identifier.url http://www.sciencedirect.com/science/article/pii/S0038109805008860 ko
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