Enhanced Carrier Transport in Strongly Coupled, Epitaxially Fused CdSe Nanocrystal Solids
DC Field | Value | Language |
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dc.contributor.author | Zhao, Qinghua | - |
dc.contributor.author | Gouget, Guillaume | - |
dc.contributor.author | Guo, Jiacen | - |
dc.contributor.author | Yang, Shengsong | - |
dc.contributor.author | Zhao, Tianshuo | - |
dc.contributor.author | Straus, Daniel B. | - |
dc.contributor.author | Qian, Chengyang | - |
dc.contributor.author | Oh, Nu ri | - |
dc.contributor.author | Wang, Han | - |
dc.contributor.author | Murray, Christopher B. | - |
dc.contributor.author | Kagan, Cherie R. | - |
dc.date.accessioned | 2021-07-30T04:45:02Z | - |
dc.date.available | 2021-07-30T04:45:02Z | - |
dc.date.created | 2021-07-15 | - |
dc.date.issued | 2021-04 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/1232 | - |
dc.description.abstract | Strongly coupled, epitaxially fused colloidal nanocrystal (NC) solids are promising solution-processable semiconductors to realize optoelectronic devices with high carrier mobilities. Here, we demonstrate sequential, solid-state cation exchange reactions to transform epitaxially connected PbSe NC thin films into Cu2Se nanostructured thin-film intermediates and then successfully to achieve zinc-blende, CdSe NC solids with wide epitaxial necking along {100} facets. Transient photoconductivity measurements probe carrier transport at nanometer length scales and show a photoconductance of 0.28(1) cm(2) V-1 s(-1), the highest among CdSe NC solids reported. Atomic-layer deposition of a thin Al2O3 layer infiltrates and protects the structure from fusing into a polycrystalline thin film during annealing and further improves the photoconductance to 1.71(5) cm(2) V-1 s(-1) and the diffusion length to 760 nm. We fabricate field-effect transistors to study carrier transport at micron length scales and realize high electron mobilities of 35(3) cm(2) V-1 s(-1) with on-off ratios of 10(6) after doping. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Enhanced Carrier Transport in Strongly Coupled, Epitaxially Fused CdSe Nanocrystal Solids | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Oh, Nu ri | - |
dc.identifier.doi | 10.1021/acs.nanolett.1c00860 | - |
dc.identifier.scopusid | 2-s2.0-85104275414 | - |
dc.identifier.wosid | 000641160500082 | - |
dc.identifier.bibliographicCitation | NANO LETTERS, v.21, no.7, pp.3318 - 3324 | - |
dc.relation.isPartOf | NANO LETTERS | - |
dc.citation.title | NANO LETTERS | - |
dc.citation.volume | 21 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 3318 | - |
dc.citation.endPage | 3324 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, MultidisciplinaryPhysics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | QUANTUM-DOT SOLIDSCATION-EXCHANGETRAP PASSIVATIONCHARGE-TRANSPORTLIGAND-EXCHANGEPERFORMANCEFILMSDYNAMICSDISORDERMOBILITY | - |
dc.subject.keywordAuthor | nanocrystal solidelectronic couplingcharge transportepitaxially fusedtransistorcation exchange | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acs.nanolett.1c00860 | - |
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