Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신동욱 | - |
dc.date.accessioned | 2018-07-25T08:16:57Z | - |
dc.date.available | 2018-07-25T08:16:57Z | - |
dc.date.issued | 2011-11 | - |
dc.identifier.citation | Current Applied Physics, 2011, 11(4), P.S15-S18 | en_US |
dc.identifier.issn | 1567-1739 | - |
dc.identifier.issn | 1878-1675 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S1567173911003671?via%3Dihub | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/72952 | - |
dc.description.abstract | We have fabricated a La2O2S luminophor doped with Eu3+ and/or Yb3+ via a solid state reaction process, and measured radiative emissions in the visible and near-infrared wavelengths under excitation at ultraviolet wavelengths. In particular, the wavelength conversion characteristics of this oxysulfide matrix were investigated in comparison with a La2O3 + La(OH)(3) matrix. The rare earth ions embedded in the oxysulfide matrix feel crystal fields with poorer inversion symmetry relative to those in the oxide counterpart. This is attributed to the coexistence of oxygen and sulfur ions in their first coordination shells. Consequently, the La2O2S luminophor provides better performance in terms of emission intensity and spontaneous emission rate. In addition, under excitation at ultraviolet wavelengths, the Eu3+/Yb3+-doped La2O2S powders exhibited many strong emissions at wavelengths that can be efficiently absorbed by a typical Si-based solar cell. | en_US |
dc.description.sponsorship | This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0015239), and also supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Science B.V | en_US |
dc.subject | Wavelength conversion | en_US |
dc.subject | Rare Earths | en_US |
dc.subject | Oxysulfide | en_US |
dc.subject | Luminophor | en_US |
dc.subject | Si Solar cell | en_US |
dc.title | Wavelength conversion characteristics of Eu3+/Yb3+-activated La2O2S luminophor | en_US |
dc.type | Article | en_US |
dc.relation.no | 4 | - |
dc.relation.volume | 11 | - |
dc.identifier.doi | 10.1016/j.cap.2011.01.047 | - |
dc.relation.page | 15-18 | - |
dc.relation.journal | CURRENT APPLIED PHYSICS | - |
dc.contributor.googleauthor | Oh, Joon Jae | - |
dc.contributor.googleauthor | Jin, Byeong Kyou | - |
dc.contributor.googleauthor | Chung, Woon Jin | - |
dc.contributor.googleauthor | Shin, Dong Wook | - |
dc.contributor.googleauthor | Choi, Yong Gyu | - |
dc.relation.code | 2011216223 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | dwshin | - |
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