Open Access System for Information Sharing

Login Library

 

Article
Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads
Full metadata record
Files in This Item:
There are no files associated with this item.
DC FieldValueLanguage
dc.contributor.authorKundu, A.-
dc.contributor.authorPark, B.-
dc.contributor.authorOh, J.-
dc.contributor.authorSankar, K.V.-
dc.contributor.authorRay, C.-
dc.contributor.authorKim, W.S.-
dc.contributor.authorChan Jun, S.-
dc.date.available2019-12-03T00:30:03Z-
dc.date.created2019-10-15-
dc.date.issued2020-01-
dc.identifier.issn0008-6223-
dc.identifier.urihttp://oasis.postech.ac.kr/handle/2014.oak/100135-
dc.description.abstractCarbon dots (CDs) are a new class in carbonaceous family and have instigated remarkable research interests over the past decade both from fundamental and technological point of view due to its astonishing photoluminescence (PL) property, though the underlying PL mechanisms for CD are strongly disputed. Herein, we have synthesized nitrogen functionalized CDs (N-CDs) utilizing a facile and one-step hydrothermal approach. The synthesized CDs exhibit excellent solubility in a series of organic solvents and we have extensively investigated the CD-solvent interactions to understand the solvatochromic behavior of CDs which have hardly been studied. Our CDs show excitation wavelength and solvent dependent PL across nearly the entire visible spectrum without compromising the PL quantum yield (CD shows high quantum yield for both blue and red region in some selected solvents). The origin and spectral shift of PL property in different solvents are also thoroughly studied. These observations suggest that the hydrogen bonding between N-CDs and protic solvents is the primary driving force in controlling the PL in the system whereas both dipolar interaction and hydrogen bond acceptance basicity (β) of aprotic. solvents are to be counted for the irregular PL behavior of CDs. Interestingly, the CD-polymer solutions also provide better quantum yield compare to the bare CD which suggests that by monitoring the interaction between CD and polymer in different solvents we can tune the PL property of CD which can find potential applications in diverse fields. © 2019 Elsevier Ltd-
dc.languageEnglish-
dc.publisherElsevier Ltd-
dc.titleMulticolor emissive carbon dot with solvatochromic behavior across the entire visible spectrum-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.bibliographicCitationCarbon, v.156, pp.110 - 118-
dc.citation.endPage118-
dc.citation.startPage110-
dc.citation.titleCarbon-
dc.citation.volume156-
dc.contributor.affiliatedAuthorKim, W.S.-
dc.identifier.scopusid2-s2.0-85072316646-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.type.docTypeArticle-
dc.subject.keywordPlusCarbon-
dc.subject.keywordPlusHydrogen bonds-
dc.subject.keywordPlusPhotoluminescence-
dc.subject.keywordPlusQuantum yield-
dc.subject.keywordPlusCarbon dots-
dc.subject.keywordPlusExcellent solubility-
dc.subject.keywordPlusExcitation wavelength-
dc.subject.keywordPlusMulti-color emissions-
dc.subject.keywordPlusPhotoluminescence properties-
dc.subject.keywordPlusSolvatochromic behavior-
dc.subject.keywordPlusSolvatochromisms-
dc.subject.keywordPlusSolvent interactions-
dc.subject.keywordPlusSolvents-
dc.subject.keywordAuthorCarbon dots-
dc.subject.keywordAuthorMulticolor emission-
dc.subject.keywordAuthorPhotoluminescence-
dc.subject.keywordAuthorQuantum yield-
dc.subject.keywordAuthorSolvatochromism-

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher

 KIM, WOOKSUNG
Dept of Electrical Enginrg
Read more

Views & Downloads

Browse