Luminescence from self-trapped holes in manganese-doped calcium fluoride single crystals

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Thermally stimulated luminescence (TSL) and electron spin resonance (ESR) measurements on x-irradiated CaF/sub 2/:Mn (0.1 wt %) single crystals have been conducted in the interval 70 to 300 K. Prominent TSL peaks occur near 150 K (345- and 495-nm emission) and 200 K (predominantly 495-nm emission) with thermal decay of ESR centers at these same temperatures. Taken collectively the data suggest that 150 K TSL emission is due to mobile holes from V/sub K/ centers recombining with both trapped electrons and Mn/sup +/ ions, i.e., V/sub K/ + e/sup -/ ..-->.. 345-nm emission, and V/sub K/ + Mn/sup +/ ..-->.. … continued below

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3 pages

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Jahan, M. S.; Cooke, D. W. & Alexander, C., Jr. January 1, 1987.

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Thermally stimulated luminescence (TSL) and electron spin resonance (ESR) measurements on x-irradiated CaF/sub 2/:Mn (0.1 wt %) single crystals have been conducted in the interval 70 to 300 K. Prominent TSL peaks occur near 150 K (345- and 495-nm emission) and 200 K (predominantly 495-nm emission) with thermal decay of ESR centers at these same temperatures. Taken collectively the data suggest that 150 K TSL emission is due to mobile holes from V/sub K/ centers recombining with both trapped electrons and Mn/sup +/ ions, i.e., V/sub K/ + e/sup -/ ..-->.. 345-nm emission, and V/sub K/ + Mn/sup +/ ..-->.. (Mn/sup 2 +/)* + hv (495-nm emission). Additionally, H centers are formed by transformation of V/sub K/ centers. At 200 K, holes from H centers recombine with Mn/sup +/ to produce excited-state (Mn/sup 2 +/)* which decays by emitting 495-nm radiation.

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3 pages

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NTIS, PC A02/MF A01.

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  • International conference on luminescence, Beijing, China, 17 Aug 1987

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  • Other: DE87011748
  • Report No.: LA-UR-87-2121
  • Report No.: CONF-8708100-1
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 6337679
  • Archival Resource Key: ark:/67531/metadc1212999

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  • January 1, 1987

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  • July 5, 2018, 11:11 p.m.

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  • Oct. 5, 2023, 11:20 a.m.

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Jahan, M. S.; Cooke, D. W. & Alexander, C., Jr. Luminescence from self-trapped holes in manganese-doped calcium fluoride single crystals, article, January 1, 1987; United States. (https://digital.library.unt.edu/ark:/67531/metadc1212999/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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