Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김태환 | - |
dc.date.accessioned | 2017-11-02T00:54:04Z | - |
dc.date.available | 2017-11-02T00:54:04Z | - |
dc.date.issued | 2016-01 | - |
dc.identifier.citation | OPTICS EXPRESS, v. 24, NO 2, Page. 350-357 | en_US |
dc.identifier.issn | 1094-4087 | - |
dc.identifier.uri | https://www.osapublishing.org/oe/abstract.cfm?uri=oe-24-2-A350 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/30411 | - |
dc.description.abstract | CdSe/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 America | en_US |
dc.description.sponsorship | This 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.iso | en | en_US |
dc.publisher | OPTICAL SOC AMER | en_US |
dc.subject | LUMINESCENT SOLAR CONCENTRATORS | en_US |
dc.subject | LIGHT-EMITTING DEVICES | en_US |
dc.subject | ENERGY-TRANSFER | en_US |
dc.subject | NANOCRYSTALS | en_US |
dc.subject | CDSE | en_US |
dc.subject | EFFICIENCY | en_US |
dc.subject | CONVERSION | en_US |
dc.subject | EMISSION | en_US |
dc.subject | DIODES | en_US |
dc.subject | LAYER | en_US |
dc.title | Microstructural and optical properties of CdSe/CdS/ZnS core-shell-shell quantum dots | en_US |
dc.type | Article | en_US |
dc.relation.no | 2 | - |
dc.relation.volume | 24 | - |
dc.identifier.doi | 10.1364/OE.24.00A350 | - |
dc.relation.page | 350-357 | - |
dc.relation.journal | OPTICS EXPRESS | - |
dc.contributor.googleauthor | Lee, Dea Uk | - |
dc.contributor.googleauthor | Kim, Dae Hun | - |
dc.contributor.googleauthor | Choi, Dong Hyuk | - |
dc.contributor.googleauthor | Kim, Sang Wook | - |
dc.contributor.googleauthor | Lee, Hong Seok | - |
dc.contributor.googleauthor | Yoo, Keon-Ho | - |
dc.contributor.googleauthor | Kim, Tae Whan | - |
dc.relation.code | 2016001383 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ELECTRONIC ENGINEERING | - |
dc.identifier.pid | twk | - |
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