DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoo, Hyo Jeong | ko |
dc.contributor.author | Kwak, Byeong Eun | ko |
dc.contributor.author | Do Hyun Kim | ko |
dc.date.accessioned | 2019-12-13T07:21:43Z | - |
dc.date.available | 2019-12-13T07:21:43Z | - |
dc.date.created | 2019-12-02 | - |
dc.date.issued | 2019-11 | - |
dc.identifier.citation | JOURNAL OF PHYSICAL CHEMISTRY C, v.123, no.44, pp.27124 - 27131 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | http://hdl.handle.net/10203/268861 | - |
dc.description.abstract | Realization of luminescent carbon dots (CDs) in the solid state has been a critical issue for their applications in various fields, such as optoelectronic devices and inkjet printing. However, luminescence self-quenching of CDs in an aggregated state limits the development of their applications necessarily demanding solid-state phosphors. Here, we report the origin of luminescence quenching of CDs in terms of the sp(2) domain content, and we realized the solid-state luminescent CDs by controlling the degree of crystallinity. We compared self-quenched CDs. and self-quenching-resistant CDs with structural analysis and figured out that a high mass ratio of urea regulated the amount of the sp(2) domain in CDs, exhibiting yellow emission at 530 nm in a solid state. We also confirmed that through the carbonization time control, reducing the degree of crystallinity in CDs enabled initially nonluminescent CDs to show a quantum yield of 7.8% at 518 nm in the solid state, providing antiself-quenching property. This research would open the way to the development of solid-state CDs and their applications. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Self-Quenching Origin of Carbon Dots and the Guideline for Their Solid-State Luminescence | - |
dc.type | Article | - |
dc.identifier.wosid | 000495772100043 | - |
dc.identifier.scopusid | 2-s2.0-85074426742 | - |
dc.type.rims | ART | - |
dc.citation.volume | 123 | - |
dc.citation.issue | 44 | - |
dc.citation.beginningpage | 27124 | - |
dc.citation.endingpage | 27131 | - |
dc.citation.publicationname | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.identifier.doi | 10.1021/acs.jpcc.9b06154 | - |
dc.contributor.localauthor | Do Hyun Kim | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | GRAPHENE QUANTUM DOTS | - |
dc.subject.keywordPlus | RESONANCE ENERGY-TRANSFER | - |
dc.subject.keywordPlus | LIGHT-EMITTING DEVICES | - |
dc.subject.keywordPlus | CITRIC-ACID | - |
dc.subject.keywordPlus | FORMATION MECHANISM | - |
dc.subject.keywordPlus | FLUORESCENCE | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE | - |
dc.subject.keywordPlus | GREEN | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | MULTICOLOR | - |
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