Ultraviolet upconversion luminescence of
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Feng Qin; Yangdong Zheng; Ying Yu; Changbin Zheng; Pouran Sadat Tayebi; Zhiguo Z
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Article
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2011
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Elsevier Science
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English
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Ultraviolet upconversion emissions around 314 nm from 6 P J states of Gd 3+ ions have been observed in Y 1.98 -x Gd x Ho 0.02 O 3 (x = 0.02, 0.10, 0.20, and 0.30) oxide ceramics under the excitation of a continuous-wave 532nm laser. We found that the energy transfer process from Ho 3+ to Gd 3+ plays