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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 457 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 450 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY C | - |
dc.citation.volume | 2 | - |
dc.contributor.author | Cho, Seungho | - |
dc.contributor.author | Hong, Seong Cheol | - |
dc.contributor.author | Kim, Sungjee | - |
dc.date.accessioned | 2023-12-22T03:07:54Z | - |
dc.date.available | 2023-12-22T03:07:54Z | - |
dc.date.created | 2017-06-09 | - |
dc.date.issued | 2014-01 | - |
dc.description.abstract | Near-infrared (NIR)-emitting PbS-based quantum dots (QDs) and exfoliated layered double hydroxide (LDH) nanosheets were self-assembled to form photostable composites for NIR-emitting codes. PbS QDs prepared by a pyrolysis synthetic method or PbS-CdS (core-shell) QDs prepared by a cation exchange using PbS QDs were transferred to aqueous solutions by surface ligand exchange to dihydrolipoic acid (DHLA). The DHLA-decorated QDs and exfoliated LDH nanosheets were assembled by electrostatic interactions during vortexing. The QD-LDH composite films prepared by drop-casting exhibit more than 500% higher NIR PL intensities than the counterpart QD films (without LDH matrices) under identical conditions (i.e., QD concentration). Photostability tests under continuous light irradiation reveal that the PbS-CdS QD films are more photostable than the PbS QD films. Formation of the QD-LDH composites gives rise to further enhancement in the photostability of the film. The photostable PbS-CdS QD-LDH composite films were used to create novel NIR-emitting codes. NIR fluorescence images of a pattern of two kinds of PbS-CdS QD-LDH composite films were recorded with an InGaAs CCD camera equipped with optical filters. | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY C, v.2, no.3, pp.450 - 457 | - |
dc.identifier.doi | 10.1039/c3tc31699h | - |
dc.identifier.issn | 2050-7526 | - |
dc.identifier.scopusid | 2-s2.0-84890390557 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/22187 | - |
dc.identifier.url | http://pubs.rsc.org/en/Content/ArticleLanding/2014/TC/C3TC31699H#!divAbstract | - |
dc.identifier.wosid | 000329068900006 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRYROYAL SOC CHEMISTRY | - |
dc.title | Quantum dot-layered double hydroxide composites for near-infrared emitting codes | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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