Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 박원일 | - |
dc.date.accessioned | 2018-09-03T09:49:29Z | - |
dc.date.available | 2018-09-03T09:49:29Z | - |
dc.date.issued | 2011-09 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS, Vol.23, No.17 [2011], p3902-3906 | en_US |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | https://pubs.acs.org/doi/abs/10.1021/cm201188z | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/74721 | - |
dc.description.abstract | In this study, we introduce a new strategy to control silicon nanowire (SiNW) morphology (cone shape and cylindrical shape) by exploiting adatom diffusion at the nanostructured surface. In our approach, by using chemical treatment with a mixture of HF and H(2)SO(4) acids, ordinary flat Si substrates were changed to nanoscale-faceted, corrugated surfaces, accompanied by a transition from a hydrophobic to hydrophilic surface. These nanostructured surfaces enhanced the surface diffusion, which eventually stimulated radial growth to change the NW morphology from a cylindrical shape to a cone shape with a sharp tip. By using site-specific chemical treatment, both cone-shaped and cylindrical-shaped SiNWs could be achieved selectively on the same chip under the same conditions. Furthermore, these shape-controlled SiNWs demonstrated an outstanding antireflection effect over a broad range of wavelengths, as determined by optical measurements and finite-difference time-domain modeling. | en_US |
dc.description.sponsorship | This work was supported by a KIST research program (grant no. 2E22121) and by Future-based Technology Development Program (Nano Fields) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0029300). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA | en_US |
dc.subject | Si nanowires | en_US |
dc.subject | nanocones | en_US |
dc.subject | site-specific control | en_US |
dc.subject | antireflection effect | en_US |
dc.subject | nanoscale diffusion | en_US |
dc.title | Site-Specific Design of Cone-Shaped Si Nanowires by Exploiting Nanoscale Surface Diffusion for Optimal Photoabsorption | en_US |
dc.type | Article | en_US |
dc.relation.no | 17 | - |
dc.relation.volume | 23 | - |
dc.identifier.doi | 10.1021/cm201188z | - |
dc.relation.page | 3902-3906 | - |
dc.relation.journal | CHEMISTRY OF MATERIALS | - |
dc.contributor.googleauthor | Yi, Jaeseok | - |
dc.contributor.googleauthor | Lee, Dong Hyun | - |
dc.contributor.googleauthor | Park, Won Il | - |
dc.relation.code | 2011201833 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | wipark | - |
dc.identifier.researcherID | 7402229532 | - |
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