129 10

Full metadata record

DC FieldValueLanguage
dc.contributor.author김태환-
dc.date.accessioned2017-11-02T00:54:04Z-
dc.date.available2017-11-02T00:54:04Z-
dc.date.issued2016-01-
dc.identifier.citationOPTICS EXPRESS, v. 24, NO 2, Page. 350-357en_US
dc.identifier.issn1094-4087-
dc.identifier.urihttps://www.osapublishing.org/oe/abstract.cfm?uri=oe-24-2-A350-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/30411-
dc.description.abstractCdSe/CdS/ZnS core-shell-shell quantum dots (QDs) were synthesized by using a solution process. High-resolution transmission electron microscopy images and energy dispersive spectroscopy profiles confirmed that stoichiometric CdSe/CdS/ZnS core-shell-shell QDs were formed. Ultraviolet-visible absorption and photoluminescence (PL) spectra of CdSe/CdS/ZnS core-shell-shell QDs showed the dominant excitonic transitions from the ground electronic subband to the ground hole subband (1S(e)-1S(3/2)(h)). The PL mechanism is suggested; the carriers generated by the exciting high-energy photons in the shell region are relaxed to the band-edge states of the core region and recombined to emit lower-energy photons. The activation energy of the carriers confined in the CdSe/CdS/ZnS core-shell-shell QDs, as obtained from temperature-dependent PL spectra, was 200 meV. The quantum efficiency of the CdSe/CdS/ZnS core-shell-shell QDs at 300 K was estimated to be approximately 57%. (C)2015 Optical Society of Americaen_US
dc.description.sponsorshipThis research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2013R1A2A1A01016467).en_US
dc.language.isoenen_US
dc.publisherOPTICAL SOC AMERen_US
dc.subjectLUMINESCENT SOLAR CONCENTRATORSen_US
dc.subjectLIGHT-EMITTING DEVICESen_US
dc.subjectENERGY-TRANSFERen_US
dc.subjectNANOCRYSTALSen_US
dc.subjectCDSEen_US
dc.subjectEFFICIENCYen_US
dc.subjectCONVERSIONen_US
dc.subjectEMISSIONen_US
dc.subjectDIODESen_US
dc.subjectLAYERen_US
dc.titleMicrostructural and optical properties of CdSe/CdS/ZnS core-shell-shell quantum dotsen_US
dc.typeArticleen_US
dc.relation.no2-
dc.relation.volume24-
dc.identifier.doi10.1364/OE.24.00A350-
dc.relation.page350-357-
dc.relation.journalOPTICS EXPRESS-
dc.contributor.googleauthorLee, Dea Uk-
dc.contributor.googleauthorKim, Dae Hun-
dc.contributor.googleauthorChoi, Dong Hyuk-
dc.contributor.googleauthorKim, Sang Wook-
dc.contributor.googleauthorLee, Hong Seok-
dc.contributor.googleauthorYoo, Keon-Ho-
dc.contributor.googleauthorKim, Tae Whan-
dc.relation.code2016001383-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ELECTRONIC ENGINEERING-
dc.identifier.pidtwk-


qrcode

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

BROWSE