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Park, Youngsin
Center for Superfunctional Materials
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Surface Effect Induced Optical Bandgap Shrinkage in GaN Nanotubes

DC Field Value Language Park, Youngsin ko Lee, Geunsik ko Holmes, Mark J. ko Chan, Christopher C. S. ko Reid, Benjamin P. L. ko Alexander-Webber, Jack A. ko Nicholas, Robin J. ko Taylor, Robert A. ko Kim, Kwang S. ko Han, Sang W. ko Yang, Woochul ko Jo, Y ko Kim, J ko Im, Hyunsik ko 2015-07-30T06:30:12Z - 2015-07-29 ko 2015-07 ko
dc.identifier.citation NANO LETTERS, v.15, no.7, pp.4472 - 4476 ko
dc.identifier.issn 1530-6984 ko
dc.identifier.uri -
dc.description.abstract We investigate nontrivial surface effects on the optical properties of self-assembled crystalline GaN nanotubes grown on Si substrates. The excitonic emission is observed to redshift by ∼100 meV with respect to that of bulk GaN. We find that the conduction band edge is mainly dominated by surface atoms, and that a larger number of surface atoms for the tube is likely to increase the bandwidth, thus reducing the optical bandgap. The experimental findings can have important impacts in the understanding of the role of surfaces in nanostructured semiconductors with an enhanced surface/volume ratio. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher AMER CHEMICAL SOC ko
dc.title Surface Effect Induced Optical Bandgap Shrinkage in GaN Nanotubes ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84936768930 ko
dc.identifier.wosid 000357964100036 ko
dc.type.rims ART ko
dc.description.wostc 0 *
dc.description.scopustc 0 * 2015-12-28 * 2015-11-04 *
dc.identifier.doi 10.1021/acs.nanolett.5b00924 ko
dc.identifier.url ko
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