Specific Features of Formation of Electron and Hole Trapping Centers in Irradiated CaSO<sub>4</sub>-Mn and BaSO<sub>4</sub>-Mn
Spectroscopic and thermoactivation methods were used to study the processes of accumulation of electron and hole trapping centers and energy transfer of electronic excitations to impurities in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline&qu...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-07-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/7/1054 |
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| author | Turlybek. N. Nurakhmetov Temirulan. T. Alibay Keleshek. B. Zhangylyssov Dulat. H. Daurenbekov Amangeldy. M. Zhunusbekov Aset. Zh. Kainarbay Batsaiy. M. Sadykova Doszhan. A. Tolekov Raushan. K. Shamiyeva |
| author_facet | Turlybek. N. Nurakhmetov Temirulan. T. Alibay Keleshek. B. Zhangylyssov Dulat. H. Daurenbekov Amangeldy. M. Zhunusbekov Aset. Zh. Kainarbay Batsaiy. M. Sadykova Doszhan. A. Tolekov Raushan. K. Shamiyeva |
| author_sort | Turlybek. N. Nurakhmetov |
| collection | DOAJ |
| description | Spectroscopic and thermoactivation methods were used to study the processes of accumulation of electron and hole trapping centers and energy transfer of electronic excitations to impurities in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">C</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub><mtext>-</mtext><mi mathvariant="normal">M</mi><mi mathvariant="normal">n</mi></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">B</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub><mtext>-</mtext><mi mathvariant="normal">M</mi><mi mathvariant="normal">n</mi></mrow></semantics></math></inline-formula>. It is shown that electronic trapping centers are created during the excitation of an anionic complex as a result of charge transfer from <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>2</mn><mo>−</mo></mrow></msup><mo>→</mo><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mn>2</mn><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula> to closely spaced anionic complexes <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mn>2</mn><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula> in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">C</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">B</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></semantics></math></inline-formula>. In <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">C</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">B</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></semantics></math></inline-formula>, energy transfer from the host to impurities occurs at the moment of charge transfer from the excited anionic complex to the combined radiative electronic state at 2.95–3.1 eV. This combined state is formed from electronic trapping centers <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi mathvariant="normal">M</mi><mi mathvariant="normal">n</mi></mrow><mrow><mo>+</mo></mrow></msup><mtext>-</mtext><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mn>3</mn><mo>−</mo></mrow></msubsup><mtext>-</mtext><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula>. It was found that the emerging combined radiative states at 2.95–3.1 eV of sulfates, which are formed as a result of charge transfer from the excited anionic complexes to the excited state of impurities, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi mathvariant="normal">T</mi><mi mathvariant="normal">l</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>,</mo><msup><mrow><mi mathvariant="normal">C</mi><mi mathvariant="normal">u</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>,</mo><msup><mrow><mi mathvariant="normal">a</mi><mi mathvariant="normal">n</mi><mi mathvariant="normal">d</mi><mo> </mo><mi mathvariant="normal">M</mi><mi mathvariant="normal">n</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow></semantics></math></inline-formula>, occupy the same energy levels as the intrinsic electronic trapping center <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mn>3</mn><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula> of the host at 2.95–3.17 eV. Experimental results show that during UV photon irradiation, anionic complexes are excited mainly near impurities in sulfates. |
| first_indexed | 2024-03-11T01:10:22Z |
| format | Article |
| id | doaj.art-11bb8f9c7f074ea98d4c5530afaf0aa8 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-11T01:10:22Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-11bb8f9c7f074ea98d4c5530afaf0aa82023-11-18T18:53:46ZengMDPI AGCrystals2073-43522023-07-01137105410.3390/cryst13071054Specific Features of Formation of Electron and Hole Trapping Centers in Irradiated CaSO<sub>4</sub>-Mn and BaSO<sub>4</sub>-MnTurlybek. N. Nurakhmetov0Temirulan. T. Alibay1Keleshek. B. Zhangylyssov2Dulat. H. Daurenbekov3Amangeldy. M. Zhunusbekov4Aset. Zh. Kainarbay5Batsaiy. M. Sadykova6Doszhan. A. Tolekov7Raushan. K. Shamiyeva8Physics-Technical Faculty, L. N. Gumilyov Eurasian National University, 2 Satpayev Str., Astana Z01C0X0, KazakhstanPhysics-Technical Faculty, L. N. Gumilyov Eurasian National University, 2 Satpayev Str., Astana Z01C0X0, KazakhstanPhysics-Technical Faculty, L. N. Gumilyov Eurasian National University, 2 Satpayev Str., Astana Z01C0X0, KazakhstanPhysics-Technical Faculty, L. N. Gumilyov Eurasian National University, 2 Satpayev Str., Astana Z01C0X0, KazakhstanPhysics-Technical Faculty, L. N. Gumilyov Eurasian National University, 2 Satpayev Str., Astana Z01C0X0, KazakhstanPhysics-Technical Faculty, L. N. Gumilyov Eurasian National University, 2 Satpayev Str., Astana Z01C0X0, KazakhstanPhysics-Technical Faculty, L. N. Gumilyov Eurasian National University, 2 Satpayev Str., Astana Z01C0X0, KazakhstanPhysics-Technical Faculty, L. N. Gumilyov Eurasian National University, 2 Satpayev Str., Astana Z01C0X0, KazakhstanPhysics-Technical Faculty, L. N. Gumilyov Eurasian National University, 2 Satpayev Str., Astana Z01C0X0, KazakhstanSpectroscopic and thermoactivation methods were used to study the processes of accumulation of electron and hole trapping centers and energy transfer of electronic excitations to impurities in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">C</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub><mtext>-</mtext><mi mathvariant="normal">M</mi><mi mathvariant="normal">n</mi></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">B</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub><mtext>-</mtext><mi mathvariant="normal">M</mi><mi mathvariant="normal">n</mi></mrow></semantics></math></inline-formula>. It is shown that electronic trapping centers are created during the excitation of an anionic complex as a result of charge transfer from <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>2</mn><mo>−</mo></mrow></msup><mo>→</mo><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mn>2</mn><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula> to closely spaced anionic complexes <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mn>2</mn><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula> in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">C</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">B</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></semantics></math></inline-formula>. In <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">C</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">B</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></semantics></math></inline-formula>, energy transfer from the host to impurities occurs at the moment of charge transfer from the excited anionic complex to the combined radiative electronic state at 2.95–3.1 eV. This combined state is formed from electronic trapping centers <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi mathvariant="normal">M</mi><mi mathvariant="normal">n</mi></mrow><mrow><mo>+</mo></mrow></msup><mtext>-</mtext><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mn>3</mn><mo>−</mo></mrow></msubsup><mtext>-</mtext><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula>. It was found that the emerging combined radiative states at 2.95–3.1 eV of sulfates, which are formed as a result of charge transfer from the excited anionic complexes to the excited state of impurities, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi mathvariant="normal">T</mi><mi mathvariant="normal">l</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>,</mo><msup><mrow><mi mathvariant="normal">C</mi><mi mathvariant="normal">u</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>,</mo><msup><mrow><mi mathvariant="normal">a</mi><mi mathvariant="normal">n</mi><mi mathvariant="normal">d</mi><mo> </mo><mi mathvariant="normal">M</mi><mi mathvariant="normal">n</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow></semantics></math></inline-formula>, occupy the same energy levels as the intrinsic electronic trapping center <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mrow><mi mathvariant="normal">S</mi><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow><mrow><mn>3</mn><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula> of the host at 2.95–3.17 eV. Experimental results show that during UV photon irradiation, anionic complexes are excited mainly near impurities in sulfates.https://www.mdpi.com/2073-4352/13/7/1054intrinsic emissionrecombinationelectron-hole trapping centerssulfatephosphor |
| spellingShingle | Turlybek. N. Nurakhmetov Temirulan. T. Alibay Keleshek. B. Zhangylyssov Dulat. H. Daurenbekov Amangeldy. M. Zhunusbekov Aset. Zh. Kainarbay Batsaiy. M. Sadykova Doszhan. A. Tolekov Raushan. K. Shamiyeva Specific Features of Formation of Electron and Hole Trapping Centers in Irradiated CaSO<sub>4</sub>-Mn and BaSO<sub>4</sub>-Mn Crystals intrinsic emission recombination electron-hole trapping centers sulfate phosphor |
| title | Specific Features of Formation of Electron and Hole Trapping Centers in Irradiated CaSO<sub>4</sub>-Mn and BaSO<sub>4</sub>-Mn |
| title_full | Specific Features of Formation of Electron and Hole Trapping Centers in Irradiated CaSO<sub>4</sub>-Mn and BaSO<sub>4</sub>-Mn |
| title_fullStr | Specific Features of Formation of Electron and Hole Trapping Centers in Irradiated CaSO<sub>4</sub>-Mn and BaSO<sub>4</sub>-Mn |
| title_full_unstemmed | Specific Features of Formation of Electron and Hole Trapping Centers in Irradiated CaSO<sub>4</sub>-Mn and BaSO<sub>4</sub>-Mn |
| title_short | Specific Features of Formation of Electron and Hole Trapping Centers in Irradiated CaSO<sub>4</sub>-Mn and BaSO<sub>4</sub>-Mn |
| title_sort | specific features of formation of electron and hole trapping centers in irradiated caso sub 4 sub mn and baso sub 4 sub mn |
| topic | intrinsic emission recombination electron-hole trapping centers sulfate phosphor |
| url | https://www.mdpi.com/2073-4352/13/7/1054 |
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