DC Field | Value | Language |
---|---|---|
dc.contributor.author | Woo, Ju Young | ko |
dc.contributor.author | Ko, Jae Hyeon | ko |
dc.contributor.author | Song, Jung Hoon | ko |
dc.contributor.author | Kim, Kyungnam | ko |
dc.contributor.author | Choi, Hyekyoung | ko |
dc.contributor.author | Kim, Yong-Hyun | ko |
dc.contributor.author | Lee, DohChang | ko |
dc.contributor.author | Jeong, Sohee | ko |
dc.date.accessioned | 2014-09-04T08:26:01Z | - |
dc.date.available | 2014-09-04T08:26:01Z | - |
dc.date.created | 2014-08-04 | - |
dc.date.created | 2014-08-04 | - |
dc.date.issued | 2014-06 | - |
dc.identifier.citation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.136, no.25, pp.8883 - 8886 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.uri | http://hdl.handle.net/10203/189987 | - |
dc.description.abstract | The fast degradation of lead selenide (PbSe) nanocrystal quantum dots (NQDs) in ambient conditions impedes widespread deployment of the highly excitonic, thus versatile, colloidal NQDs. Here we report a simple in situ post-synthetic halide salt treatment that results in size-independent air stability of PbSe NQDs without significantly altering their optoelectronic characteristics. From TEM, NMR, and XPS results and DFT calculations, we propose that the unprecedented size-independent air stability of the PbSe NQDs can be attributed to the successful passivation of under-coordinated PbSe(100) facets with atomically thin PbX2 (X = Cl, Br, I) adlayers. Conductive films made of halide-treated ultrastable PbSe NQDs exhibit markedly improved air stability and behave as an n-type channel in a field-effect transistor. Our simple in situ wet-chemical passivation scheme will enable broader utilization of PbSe NQDs in ambient conditions in many optoelectronic applications. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | SOLAR-CELLS | - |
dc.subject | SEMICONDUCTOR NANOCRYSTALS | - |
dc.subject | ELECTRICAL-PROPERTIES | - |
dc.subject | LIGAND-EXCHANGE | - |
dc.subject | PASSIVATION | - |
dc.subject | CHEMISTRY | - |
dc.subject | EMISSION | - |
dc.subject | SELENIDE | - |
dc.subject | SOLIDS | - |
dc.subject | BRIGHT | - |
dc.title | Ultrastable PbSe Nanocrystal Quantum Dots via in Situ Formation of Atomically Thin Halide Adlayers on PbSe(100) | - |
dc.type | Article | - |
dc.identifier.wosid | 000338184200012 | - |
dc.identifier.scopusid | 2-s2.0-84903287313 | - |
dc.type.rims | ART | - |
dc.citation.volume | 136 | - |
dc.citation.issue | 25 | - |
dc.citation.beginningpage | 8883 | - |
dc.citation.endingpage | 8886 | - |
dc.citation.publicationname | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.identifier.doi | 10.1021/ja503957r | - |
dc.contributor.localauthor | Kim, Yong-Hyun | - |
dc.contributor.localauthor | Lee, DohChang | - |
dc.contributor.nonIdAuthor | Kim, Kyungnam | - |
dc.contributor.nonIdAuthor | Choi, Hyekyoung | - |
dc.contributor.nonIdAuthor | Jeong, Sohee | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | SEMICONDUCTOR NANOCRYSTALS | - |
dc.subject.keywordPlus | ELECTRICAL-PROPERTIES | - |
dc.subject.keywordPlus | LIGAND-EXCHANGE | - |
dc.subject.keywordPlus | PASSIVATION | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | SELENIDE | - |
dc.subject.keywordPlus | SOLIDS | - |
dc.subject.keywordPlus | BRIGHT | - |
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