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- Publisher Website: 10.1016/j.jallcom.2014.11.101
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Article: Considerable photoluminescence enhancement of LiEu(MoO4)2 red phosphors via Bi and/or Si doping for white LEDs
Title | Considerable photoluminescence enhancement of LiEu(MoO4)2 red phosphors via Bi and/or Si doping for white LEDs |
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Authors | |
Keywords | Lithium lanthanide molybdate Near UV white LEDs Photoluminescence enhancement Red phosphors Silicon and bismuth doping |
Issue Date | 2015 |
Citation | Journal of Alloys and Compounds, 2015, v. 625, p. 355-361 How to Cite? |
Abstract | Novel Bi and/or Si substituted LiEu(MoO4)2 phosphors, where Bi was used as sensitizer to enhance the emission intensity and Si was used as substitution to improve the excitation efficiency, were prepared using the sol-gel method, and the photoluminescent properties of the resulting phosphors were intensively investigated. All samples can be excited efficiently by UV (395 nm) light and emit bright red light at 614 nm, which are coupled well with the characteristic emission from a UV-LED. In the Bi3+-doped samples, the intensities of the main emission line (5D0-7F2 transition at 614 nm) are strengthened because of the energy transition from Bi3+ to Eu3+. With the substitution of Mo4+ by Si4+, there are no significant changes in the emission peak positions, but the emission intensity was significantly enhanced under 395 nm excitation. Particularly, the LiEu0.9Bi0.1(Mo0.97Si0.03O4)2 phosphor doped with both Bi and Si demonstrates superior comprehensive photoluminescence properties with an excellent combination of easy excitation in the near UV range, bright emission intensity, high PL quantum efficiency as well as suitable decay time, which are very suitable for application as red phosphor for near UV type LEDs. |
Persistent Identifier | http://hdl.handle.net/10722/323121 |
ISSN | 2023 Impact Factor: 5.8 2023 SCImago Journal Rankings: 1.103 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Wang, Qing Feng | - |
dc.contributor.author | Liu, Ying | - |
dc.contributor.author | Wang, Yu | - |
dc.contributor.author | Wang, Wenxi | - |
dc.contributor.author | Wan, Yi | - |
dc.contributor.author | Wang, Gui Gen | - |
dc.contributor.author | Lu, Zhou Guang | - |
dc.date.accessioned | 2022-11-18T11:54:52Z | - |
dc.date.available | 2022-11-18T11:54:52Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Journal of Alloys and Compounds, 2015, v. 625, p. 355-361 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | http://hdl.handle.net/10722/323121 | - |
dc.description.abstract | Novel Bi and/or Si substituted LiEu(MoO4)2 phosphors, where Bi was used as sensitizer to enhance the emission intensity and Si was used as substitution to improve the excitation efficiency, were prepared using the sol-gel method, and the photoluminescent properties of the resulting phosphors were intensively investigated. All samples can be excited efficiently by UV (395 nm) light and emit bright red light at 614 nm, which are coupled well with the characteristic emission from a UV-LED. In the Bi3+-doped samples, the intensities of the main emission line (5D0-7F2 transition at 614 nm) are strengthened because of the energy transition from Bi3+ to Eu3+. With the substitution of Mo4+ by Si4+, there are no significant changes in the emission peak positions, but the emission intensity was significantly enhanced under 395 nm excitation. Particularly, the LiEu0.9Bi0.1(Mo0.97Si0.03O4)2 phosphor doped with both Bi and Si demonstrates superior comprehensive photoluminescence properties with an excellent combination of easy excitation in the near UV range, bright emission intensity, high PL quantum efficiency as well as suitable decay time, which are very suitable for application as red phosphor for near UV type LEDs. | - |
dc.language | eng | - |
dc.relation.ispartof | Journal of Alloys and Compounds | - |
dc.subject | Lithium lanthanide molybdate | - |
dc.subject | Near UV white LEDs | - |
dc.subject | Photoluminescence enhancement | - |
dc.subject | Red phosphors | - |
dc.subject | Silicon and bismuth doping | - |
dc.title | Considerable photoluminescence enhancement of LiEu(MoO4)2 red phosphors via Bi and/or Si doping for white LEDs | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.jallcom.2014.11.101 | - |
dc.identifier.scopus | eid_2-s2.0-84919789373 | - |
dc.identifier.volume | 625 | - |
dc.identifier.spage | 355 | - |
dc.identifier.epage | 361 | - |
dc.identifier.isi | WOS:000347408900050 | - |