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dc.contributor.author이광걸-
dc.date.accessioned2019-12-08T00:37:22Z-
dc.date.available2019-12-08T00:37:22Z-
dc.date.issued2018-05-
dc.identifier.citationSCIENTIFIC REPORTS, v. 8, Article no. 8273en_US
dc.identifier.issn2045-2322-
dc.identifier.urihttps://www.nature.com/articles/s41598-018-26686-w-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/118565-
dc.description.abstractSingle fluorescent emitters like colloidal quantum dots or single molecules are usually prepared in solutions and spin-coated onto cover glasses for studying. Toluene has been a widely used solvent in such studies. Here, we report on a fluorescent impurity emitter contained in toluene and its optical properties. The emission spectra of the single emitters show multiple peaks with the main peak varying from 2.03 eV (610 nm) to 2.14 eV (580 nm) and a red-shifted side peak with an average separation of 167 meV from the main peak. The emitted photons show a strong anti-bunching with a fluorescence lifetime of a few nanoseconds. They show very fast blinking behavior which cannot be properly detected by time-trajectory of photoluminescence intensity. An analysis based on the second-order correlation functions reveals that a three-level model can explain our measurements well and that the blinking transition time ranges only a few tens of microseconds. This single emitter in toluene is clearly distinguished from the fluorescent centers in the cover glass by their respective emission spectra. The single emitters in the cover glass also exhibit fast blinking behavior. These background emitters should be carefully identified and distinguished while studying the single fluorescent emitters.en_US
dc.description.sponsorshipThis study was supported by the Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science and ICT (Grants No. 2016R1A2B4014370).en_US
dc.language.isoen_USen_US
dc.publisherNATURE PUBLISHING GROUPen_US
dc.subjectSEMICONDUCTOR QUANTUM DOTSen_US
dc.subjectROOM-TEMPERATUREen_US
dc.subjectPEROVSKITE NANOCRYSTALSen_US
dc.subjectSINGLE-MOLECULEen_US
dc.subjectBLINKINGen_US
dc.subjectINTERMITTENCYen_US
dc.subjectSPECTROSCOPYen_US
dc.subjectTERRYLENEen_US
dc.subjectJUMPSen_US
dc.titleFluorescent impurity emitter in toluene and its photon emission propertiesen_US
dc.typeArticleen_US
dc.relation.volume8-
dc.identifier.doi10.1038/s41598-018-26686-w-
dc.relation.page1-8-
dc.relation.journalSCIENTIFIC REPORTS-
dc.contributor.googleauthorCong Tai Trinh-
dc.contributor.googleauthorLee, Jiwon-
dc.contributor.googleauthorLee, Kwang-Geol-
dc.relation.code2018003596-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF NATURAL SCIENCES[S]-
dc.sector.departmentDEPARTMENT OF PHYSICS-
dc.identifier.pidkglee-


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