Surface control of CdSe nanocrystals by UV-exposure in air and successive thermal treatment under ultra high vacuum
DC Field | Value | Language |
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dc.contributor.author | Choi, Hyun-Ju | - |
dc.contributor.author | Wang, Seok-Joo | - |
dc.contributor.author | Kim, Hyuncheol | - |
dc.contributor.author | Park, Hyung-Ho | - |
dc.contributor.author | Chang, Ho Jung | - |
dc.contributor.author | Jeon, Hyeongtag | - |
dc.date.accessioned | 2022-10-07T10:10:43Z | - |
dc.date.available | 2022-10-07T10:10:43Z | - |
dc.date.created | 2022-08-26 | - |
dc.date.issued | 2008-08 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/171932 | - |
dc.description.abstract | Colloidal CdSe nanocrystals were synthesized through a solution process. The CdSe nanocrystals coated on Si(1 0 0) wafers were UV-exposed in either an air or argon atmosphere to distinguish the effect of generated ozone from UV-radiation at 365 nm on the removal of surface capping pyridine molecules. The pyridine on the CdSe nanocrystal's surface could be effectively removed by the ozone generated during UV-exposure with an accompanying highly oxidized surface state of the CdSe nanocrystals. For the removal of surface oxides of CdSe nanocrystals, a successive thermal treatment under ultra high vacuum (UHV) was adopted. The optical energy bandgap measured by using UV-vis absorption spectroscopy showed a red shift with treatment with an increase of annealing temperature. The electronic energy structure of UHV-annealed CdSe nanocrystals film was analyzed in situ using X-ray absorption and photoelectron spectroscopy. A great resemblance was found between the values of the optical and electron energy bandgaps of effectively surface-treated CdSe nanocrystals film after UHV-annealing at 400 degrees C. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.title | Surface control of CdSe nanocrystals by UV-exposure in air and successive thermal treatment under ultra high vacuum | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jeon, Hyeongtag | - |
dc.identifier.doi | 10.1016/j.apsusc.2008.04.090 | - |
dc.identifier.scopusid | 2-s2.0-49549108197 | - |
dc.identifier.wosid | 000258997700035 | - |
dc.identifier.bibliographicCitation | APPLIED SURFACE SCIENCE, v.254, no.21, pp.6886 - 6889 | - |
dc.relation.isPartOf | APPLIED SURFACE SCIENCE | - |
dc.citation.title | APPLIED SURFACE SCIENCE | - |
dc.citation.volume | 254 | - |
dc.citation.number | 21 | - |
dc.citation.startPage | 6886 | - |
dc.citation.endPage | 6889 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | INP QUANTUM DOTS | - |
dc.subject.keywordPlus | PHOTOELECTRON-SPECTROSCOPY | - |
dc.subject.keywordPlus | ELECTRONIC-STRUCTURE | - |
dc.subject.keywordPlus | MONODISPERSE | - |
dc.subject.keywordPlus | NUCLEATION | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordAuthor | CdSe nanocrystals | - |
dc.subject.keywordAuthor | electronic structure | - |
dc.subject.keywordAuthor | UV treatment | - |
dc.subject.keywordAuthor | thermal treatment | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0169433208009409?via%3Dihub | - |
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