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DC Field | Value | Language |
---|---|---|
dc.citation.number | 23 | - |
dc.citation.startPage | 2207511 | - |
dc.citation.title | SMALL | - |
dc.citation.volume | 19 | - |
dc.contributor.author | Yoon, Sang Eun | - |
dc.contributor.author | Kim, Yongjin | - |
dc.contributor.author | Kim, Hyeongjun | - |
dc.contributor.author | Kwon, Hyo-Geun | - |
dc.contributor.author | Kim, Unjeong | - |
dc.contributor.author | Lee, Sang Yeon | - |
dc.contributor.author | Park, Ju Hyun | - |
dc.contributor.author | Seo, Hyungtak | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Kim, Sang-Wook | - |
dc.contributor.author | Kim, Jong H. | - |
dc.date.accessioned | 2023-12-21T12:46:47Z | - |
dc.date.available | 2023-12-21T12:46:47Z | - |
dc.date.created | 2023-04-14 | - |
dc.date.issued | 2023-06 | - |
dc.description.abstract | The authors report a strategic approach to achieve metallic properties from semiconducting Cu-Fe-S colloidal nanocrystal (NC) solids through cation exchange method. An unprecedentedly high electrical conductivity is realized by the efficient generation of charge carriers onto a semiconducting Cu-S NC template via minimal Fe exchange. An electrical conductivity exceeding 10 500 S cm(-1) (13 400 S cm(-1) at 2 K) and a sheet resistance of 17 omega/sq at room temperature, which are among the highest values for solution-processable semiconducting NCs, are achieved successfully from bornite-phase Cu-Fe-S NC films possessing 10% Fe atom. The temperature dependence of the corresponding films exhibits pure metallic characteristics. Highly conducting NCs are demonstrated for a thermoelectric layer exhibiting a high power factor over 1.2 mW m(-1)K(-2) at room temperature, electrical wires for switching on light emitting diods (LEDs), and source-drain electrodes for p- and n-type organic field-effect transistors. Ambient stability, eco-friendly composition, and solution-processability further validate their sustainable and practical applicability. The present study provides a simple but very effective method for significantly increasing charge carrier concentrations in semiconducting colloidal NCs to achieve metallic properties, which is applicable to various optoelectronic devices. | - |
dc.identifier.bibliographicCitation | SMALL, v.19, no.23, pp.2207511 | - |
dc.identifier.doi | 10.1002/smll.202207511 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.scopusid | 2-s2.0-85150620412 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/64006 | - |
dc.identifier.wosid | 000950555000001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Remarkable Electrical Conductivity Increase and Pure Metallic Properties from Semiconducting Colloidal Nanocrystals by Cation Exchange for Solution-Processable Optoelectronic Applications | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | cation exchange | - |
dc.subject.keywordAuthor | colloidal nanocrystals | - |
dc.subject.keywordAuthor | electrical conductivity | - |
dc.subject.keywordAuthor | semiconductor-to-metal transition | - |
dc.subject.keywordAuthor | thermoelectric devices | - |
dc.subject.keywordPlus | BAND-LIKE TRANSPORT | - |
dc.subject.keywordPlus | SELENIDE NANOCRYSTALS | - |
dc.subject.keywordPlus | PLASMON RESONANCES | - |
dc.subject.keywordPlus | PHASE-TRANSITION | - |
dc.subject.keywordPlus | COPPER | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | SOLIDS | - |
dc.subject.keywordPlus | CHALLENGES | - |
dc.subject.keywordPlus | MONOLAYERS | - |
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