Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 고민재 | - |
dc.date.accessioned | 2019-12-04T00:55:48Z | - |
dc.date.available | 2019-12-04T00:55:48Z | - |
dc.date.issued | 2018-01 | - |
dc.identifier.citation | APPLIED SURFACE SCIENCE, v. 429, page. 16-22 | en_US |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.issn | 1873-5584 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0169433217320159?via%3Dihub | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/116944 | - |
dc.description.abstract | Colloidal quantum dots (QDs) are attractive materials for application in photovoltaics, LEDs, displays, and bio devices owing to their unique properties. In this study, we synthesized gradient-interface-structured ZnCdSSe QDs and modified the interface based on a thermodynamic simulation to investigate its optical and physical properties. In addition, the interface was modified by increasing the molar concentration of Se. QDs at the modified interface were applied to QD-sensitized solar cells, which showed a 25.5% increase in photoelectric conversion efficiency owing to the reduced electron confinement effect. The increase seems to be caused by the excited electrons being relatively easily transferred to the level of TiO2 owing to the reduced electron confinement effect. Consequently, the electron confinement effect was observed to be reduced by increasing the ZnSe (or Zn1-x,Cd-x Se)-rich phase at the interface. This means that, based on the thermodynamic simulation, the interface between the core QDs and the surface of the QDs can be controlled. The improvement of optical and electronic properties by controlling interfaces and surfaces during the synthesis of QDs, as reported in this work, can be useful for many applications beyond solar cells. (C) 2017 Elsevier B.V. All rights reserved. | en_US |
dc.description.sponsorship | This research was supported by the Ministry of Trade, Industry & Energy (MOTIE), Korea Institute for Advancement of Technology (KIAT) through the Encouragement Program for The Industries of Economic Cooperation Region (Project No. R0004019). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | ELSEVIER SCIENCE BV | en_US |
dc.subject | Quantum dots | en_US |
dc.subject | Solar cell | en_US |
dc.subject | QDSCs | en_US |
dc.subject | Gradient interface | en_US |
dc.subject | Modified interface | en_US |
dc.title | Characteristics of gradient-interface-structured ZnCdSSe quantum dots with modified interface and its application to quantum-dot-sensitized solar cells | en_US |
dc.type | Article | en_US |
dc.relation.volume | 429 | - |
dc.identifier.doi | 10.1016/j.apsusc.2017.07.025 | - |
dc.relation.page | 16-22 | - |
dc.relation.journal | APPLIED SURFACE SCIENCE | - |
dc.contributor.googleauthor | Jeong, Da-Woon | - |
dc.contributor.googleauthor | Kim, Jae-Yup | - |
dc.contributor.googleauthor | Seo, Han Wook | - |
dc.contributor.googleauthor | Lim, Kyoung-Mook | - |
dc.contributor.googleauthor | Ko, Min Jae | - |
dc.contributor.googleauthor | Seong, Tae-Yeon | - |
dc.contributor.googleauthor | Kim, Bum Sung | - |
dc.relation.code | 2018002021 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF CHEMICAL ENGINEERING | - |
dc.identifier.pid | mjko | - |
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