Irradiation-induced reduction and luminescence properties of Sm doped in BaBPO5 |
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Authors: | Yanlin Huang Kiwan Jang Wanxue Zhao Eunjin Cho Ho Sueb Lee Xigang Wang Dake Qin Ying Zhang Chanfang Jiang Hyo Jin Seo |
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Institution: | aSchool of Material Engineering, Soochow University, 178 GanJiang East Road, Suzhou 215021, PR China;bDepartment of Physics, Changwon National University, Changwon 641-773, Republic of Korea;cDepartment of Physics, Pukyong National University, Daeyeon 3-Dong 599-1, Pusan 608-737, Republic of Korea |
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Abstract: | Usually, Sm2+ ions could be reduced by heating the materials in reducing atmospheres. Exposure to ionizing radiations is also known to cause Sm3+→Sm2+ conversion. In this work, BaBPO5 doped with the samarium ion was prepared by high temperature solid-state reaction. Sm2+ ions were obtained by two different reduction methods, i.e., heating in H2 reduced atmosphere and X-ray irradiation. The measurements of X-ray diffraction (XRD), and scanning electron microscope (SEM) were investigated. It is found that the conversion of Sm3+→Sm2+ is very efficient in BaBPO5 hosts after X-ray irradiation. Sm2+ ions under these two reduction methods exhibit different characteristics that were studied by measurements of luminescence and decay. The results showed that the luminescence properties of Sm2+ ions in BaBPO5 were highly dependent on the sample preparation conditions. |
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Keywords: | X-ray irradiation Borophosphates Luminescence Sm2+ Reduction |
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