Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 임원빈 | - |
dc.date.accessioned | 2021-05-14T04:44:05Z | - |
dc.date.available | 2021-05-14T04:44:05Z | - |
dc.date.issued | 2020-03 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS, v. 32, no. 7, page. 3097-3108 | en_US |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.issn | 1520-5002 | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acs.chemmater.0c00095 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/162044 | - |
dc.description.abstract | In this study, we report on the development of a new garnet phosphor with enhanced optical properties and cost reduction. Samples were prepared using the solid-solution method, in which the chemical unit and substitutions with cation-size mismatch were combined. Solid solutions between two garnet structure compounds, green phosphor Lu3Al5O12:Ce3+ (LuAG:Ce3+) and orange phosphor Lu2CaMg2Si3O12:Ce3+ (Lu3-x CaxAl2-2xMg2xAl3-3xSi3xO12:Ce3+), constituted the complete solid-solution range x (x = 0-1). The crystal structures of all the compounds were discerned through Rietveld refinement based on the X-ray diffraction patterns. The unique occupancy of {Lu/Ca}, [Al/Mg], (Al/Si), and O atoms in the solid-solution samples was identified. Optical properties were classified in terms of the excitation and emission spectra, quantum yield, and temperature-dependent photoluminescence intensity. To investigate the relationship between the structural and optical changes, Ba2+ ions (employed for cation-size mismatch) were substituted into dodecahedral and octahedral sites at various concentrations. Finally, we report the development of a new green garnet phosphor via the use of a solid-solution design and cation-size mismatch, the emission intensity of which was measured 116% higher than that of commercial LuAG:Ce3+. | 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 Science, ICT & Future Planning (Project no. 2017R1A2B3011967); the Engineering Research Center through the NRF, funded by the Korean Goverment (M S I T) (Project no. NRF-2018R1A5A1025224); the Technology Innovation Program (KEIT-20002947) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea); and the Global PhD Fellowship Program through the NRF funded by the Ministry of Education (NRF-2018H1A2A1062877). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | CRYSTAL-CHEMISTRY | en_US |
dc.subject | CE3+ LUMINESCENCE | en_US |
dc.subject | PHOTOLUMINESCENCE | en_US |
dc.subject | ENERGY | en_US |
dc.title | Cation-Size Mismatch as a Design Principle for Enhancing the Efficiency of Garnet Phosphors | en_US |
dc.type | Article | en_US |
dc.relation.no | . | - |
dc.relation.volume | 32 | - |
dc.identifier.doi | 10.1021/acs.chemmater.0c00095 | - |
dc.relation.page | 3097-3108 | - |
dc.relation.journal | CHEMISTRY OF MATERIALS | - |
dc.contributor.googleauthor | Kim, Yoon Hwa | - |
dc.contributor.googleauthor | Kim, Ha Jun | - |
dc.contributor.googleauthor | Ong, Shyue Ping | - |
dc.contributor.googleauthor | Wang, Zhenbin | - |
dc.contributor.googleauthor | Im, Won Bin | - |
dc.relation.code | 2020047122 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | imwonbin | - |
dc.identifier.researcherID | B-1335-2011 | - |
dc.identifier.orcid | http://orcid.org/0000-0003-2473-4714 | - |
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