Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineering
The influence of nonstoichiometric engineering on the scintillation properties of Ce3+ doped yttrium aluminum perovskite (YAP:Ce) crystals was investigated. Crystals with slight yttrium excess (Y1·004AlO3:Ce), yttrium deficiency (Y0·994AlO3:Ce), and stoichiometric composition (YAlO3:Ce) were synthes...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-05-01
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| Series: | Optical Materials: X |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S259014782400007X |
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| author | Karol Bartosiewicz Jan Pejchal Romana Kucerkova Alena Beitlerova Vladimir Babin Vojtech Vanecek Shunsuke Kurosawa Kei Kamada Akira Yoshikawa |
| author_facet | Karol Bartosiewicz Jan Pejchal Romana Kucerkova Alena Beitlerova Vladimir Babin Vojtech Vanecek Shunsuke Kurosawa Kei Kamada Akira Yoshikawa |
| author_sort | Karol Bartosiewicz |
| collection | DOAJ |
| description | The influence of nonstoichiometric engineering on the scintillation properties of Ce3+ doped yttrium aluminum perovskite (YAP:Ce) crystals was investigated. Crystals with slight yttrium excess (Y1·004AlO3:Ce), yttrium deficiency (Y0·994AlO3:Ce), and stoichiometric composition (YAlO3:Ce) were synthesized using the micro-pulling down method. Structural characterization confirmed crystallization in the pure orthorhombic Pnma space group for all compositions. Optical absorption spectroscopy revealed an extensive background in the nonstoichiometric crystals due to the increased degree of light scattering centers associated with the defects. The photoluminescence excitation and emission spectra of Ce3+ ions were unaffected by nonstoichiometry. However, the scintillation decay kinetics and light yield exhibited marked improvements in the Y1±xAlO3:Ce (x≠0) crystals. The light yield increased by 22 % and 15 % and the slower component of the decay accelerated from 171 ns to 106 and 131 ns compared to the stoichiometric crystal. Thermoluminescence glow curves revealed that nonstoichiometry significantly altered the concentrations of antisite defects and oxygen vacancies. The EPR spectroscopy investigations revealed a correlation between the Ce3+ ions concentration and the degree of nonstoichiometry. Strategic engineering of nonstoichiometry in Y1±xAlO3:Ce (x≠0) scintillators may have provided an effective approach to optimizing scintillation performance. |
| first_indexed | 2024-03-08T05:33:58Z |
| format | Article |
| id | doaj.art-66b822c639f5475a87d9164510701370 |
| institution | Directory Open Access Journal |
| issn | 2590-1478 |
| language | English |
| last_indexed | 2024-03-08T05:33:58Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Optical Materials: X |
| spelling | doaj.art-66b822c639f5475a87d91645107013702024-02-06T04:12:46ZengElsevierOptical Materials: X2590-14782024-05-0122100295Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineeringKarol Bartosiewicz0Jan Pejchal1Romana Kucerkova2Alena Beitlerova3Vladimir Babin4Vojtech Vanecek5Shunsuke Kurosawa6Kei Kamada7Akira Yoshikawa8Faculty of Physics, Kazimierz Wielki University in Bydgoszcz, Powstancow Wielkopolskich 2, 85090, Bydgoszcz, Poland; Corresponding author.Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 16200, Praha, Czech RepublicInstitute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 16200, Praha, Czech RepublicInstitute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 16200, Praha, Czech RepublicInstitute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 16200, Praha, Czech RepublicInstitute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 16200, Praha, Czech Republic; Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, Prague 1, 11519, Czech RepublicInstitute for Materials Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, 9808577, Japan; New Industry Creation Hatchery Center, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, 9808577, Japan; Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, 565-0871, JapanInstitute for Materials Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, 9808577, Japan; New Industry Creation Hatchery Center, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, 9808577, JapanInstitute for Materials Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, 9808577, Japan; New Industry Creation Hatchery Center, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, 9808577, Japan; Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan; C&A Corporation, 1-16-23 Ichibancho, Aoba-ku, Sendai, 9800811, Japan; Corresponding author. Institute for Materials Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, 9808577, Japan.The influence of nonstoichiometric engineering on the scintillation properties of Ce3+ doped yttrium aluminum perovskite (YAP:Ce) crystals was investigated. Crystals with slight yttrium excess (Y1·004AlO3:Ce), yttrium deficiency (Y0·994AlO3:Ce), and stoichiometric composition (YAlO3:Ce) were synthesized using the micro-pulling down method. Structural characterization confirmed crystallization in the pure orthorhombic Pnma space group for all compositions. Optical absorption spectroscopy revealed an extensive background in the nonstoichiometric crystals due to the increased degree of light scattering centers associated with the defects. The photoluminescence excitation and emission spectra of Ce3+ ions were unaffected by nonstoichiometry. However, the scintillation decay kinetics and light yield exhibited marked improvements in the Y1±xAlO3:Ce (x≠0) crystals. The light yield increased by 22 % and 15 % and the slower component of the decay accelerated from 171 ns to 106 and 131 ns compared to the stoichiometric crystal. Thermoluminescence glow curves revealed that nonstoichiometry significantly altered the concentrations of antisite defects and oxygen vacancies. The EPR spectroscopy investigations revealed a correlation between the Ce3+ ions concentration and the degree of nonstoichiometry. Strategic engineering of nonstoichiometry in Y1±xAlO3:Ce (x≠0) scintillators may have provided an effective approach to optimizing scintillation performance.http://www.sciencedirect.com/science/article/pii/S259014782400007X |
| spellingShingle | Karol Bartosiewicz Jan Pejchal Romana Kucerkova Alena Beitlerova Vladimir Babin Vojtech Vanecek Shunsuke Kurosawa Kei Kamada Akira Yoshikawa Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineering Optical Materials: X |
| title | Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineering |
| title_full | Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineering |
| title_fullStr | Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineering |
| title_full_unstemmed | Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineering |
| title_short | Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineering |
| title_sort | advances in ce3 doped y1 xalo3 x≠0 single crystal perovskite scintillators through nonstoichiometric engineering |
| url | http://www.sciencedirect.com/science/article/pii/S259014782400007X |
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