Enhancement through sensitization of VUV-excited luminescence in red-emitting pentaborate phosphors
We studied the feasibility of using sensitization for the improvement of the VUV-to-visible conversion efficiency of red-emitting pentaborate phosphor. It is shown that Tb 3+ ions that exhibit a strong absorption throughout the 160-230 nm wavelength range facilitate enhancement of Eu3 emission in Tb...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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2010
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| _version_ | 1797061804103303168 |
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| author | Mikhailik, V Kraus, H |
| author_facet | Mikhailik, V Kraus, H |
| author_sort | Mikhailik, V |
| collection | OXFORD |
| description | We studied the feasibility of using sensitization for the improvement of the VUV-to-visible conversion efficiency of red-emitting pentaborate phosphor. It is shown that Tb 3+ ions that exhibit a strong absorption throughout the 160-230 nm wavelength range facilitate enhancement of Eu3 emission in TbM gB 5O 10-Eu at excitation in this spectral range. The maximum increase of the Eu 3+ emission efficiency in a pentaborate host at excitation with 150 nm photons is ca.10%. It is also shown that substitution of Zn for Mg in Gd(Mg,Zn)B 5O 10- Mn phosphor results in strong (up to 2.4 times) enhancement of the intensity of Mn 2+ emission. A possible reason for the observed host sensitization effect is discussed. © 2010 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. |
| first_indexed | 2024-03-06T20:36:26Z |
| format | Journal article |
| id | oxford-uuid:32cb8c04-5080-4b10-968d-4ac553a618c2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:36:26Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:32cb8c04-5080-4b10-968d-4ac553a618c22022-03-26T13:16:19ZEnhancement through sensitization of VUV-excited luminescence in red-emitting pentaborate phosphorsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:32cb8c04-5080-4b10-968d-4ac553a618c2EnglishSymplectic Elements at Oxford2010Mikhailik, VKraus, HWe studied the feasibility of using sensitization for the improvement of the VUV-to-visible conversion efficiency of red-emitting pentaborate phosphor. It is shown that Tb 3+ ions that exhibit a strong absorption throughout the 160-230 nm wavelength range facilitate enhancement of Eu3 emission in TbM gB 5O 10-Eu at excitation in this spectral range. The maximum increase of the Eu 3+ emission efficiency in a pentaborate host at excitation with 150 nm photons is ca.10%. It is also shown that substitution of Zn for Mg in Gd(Mg,Zn)B 5O 10- Mn phosphor results in strong (up to 2.4 times) enhancement of the intensity of Mn 2+ emission. A possible reason for the observed host sensitization effect is discussed. © 2010 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. |
| spellingShingle | Mikhailik, V Kraus, H Enhancement through sensitization of VUV-excited luminescence in red-emitting pentaborate phosphors |
| title | Enhancement through sensitization of VUV-excited luminescence in red-emitting pentaborate phosphors |
| title_full | Enhancement through sensitization of VUV-excited luminescence in red-emitting pentaborate phosphors |
| title_fullStr | Enhancement through sensitization of VUV-excited luminescence in red-emitting pentaborate phosphors |
| title_full_unstemmed | Enhancement through sensitization of VUV-excited luminescence in red-emitting pentaborate phosphors |
| title_short | Enhancement through sensitization of VUV-excited luminescence in red-emitting pentaborate phosphors |
| title_sort | enhancement through sensitization of vuv excited luminescence in red emitting pentaborate phosphors |
| work_keys_str_mv | AT mikhailikv enhancementthroughsensitizationofvuvexcitedluminescenceinredemittingpentaboratephosphors AT kraush enhancementthroughsensitizationofvuvexcitedluminescenceinredemittingpentaboratephosphors |