Improving the luminescence properties of Ba3Eu(PO4)3 by doping Sm3+ as sensitizer

Jian-qi You; Wei Lu; Shuai Qi; Ya-min Li; Xian Shi; Zhi Tian; Zhi-jun Wang; Kun Zhang; Li-bin Pang

doi:10.1007/s11801-015-5197-5

Optoelectronics Letters ›› 2015, Vol. 11 ›› Issue (6) : 430-433. DOI: 10.1007/s11801-015-5197-5

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Improving the luminescence properties of Ba₃Eu(PO₄)₃ by doping Sm³⁺ as sensitizer

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Abstract

For enhancing the emission intensity and broadening the excitation region of Ba₃Eu(PO₄)₃ (BEP), Sm³⁺ is doped as sensitizer in this paper. BEP:Sm³⁺ can produce an obvious red emission at near ultraviolet (n-UV) radiation. An effective energy transfer from Sm³⁺ to Eu3+ is proved. The commission international de I’Eclairage (CIE) chromaticity coordinates of BEP:Sm³⁺ locate at red region. When the environment temperature is 150 °C, the emission intensity of BEP:0.10Sm³⁺ is decreased to 76% of the initial one at room temperature, and the activation energy is calculated to be 0.164 eV, which can prove the good thermal stability of BEP:Sm³⁺. The results indicate that BEP:Sm³⁺ may have potential applications in white light emitting diodes (LEDs).

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Jian-qi You, Wei Lu, Shuai Qi, Ya-min Li, Xian Shi, Zhi Tian, Zhi-jun Wang, Kun Zhang, Li-bin Pang. Improving the luminescence properties of Ba₃Eu(PO₄)₃ by doping Sm³⁺ as sensitizer. Optoelectronics Letters, 2015, 11(6): 430‒433 https://doi.org/10.1007/s11801-015-5197-5

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This work has been supported by the National Natural Science Foundation of China (No.50902042), the Natural Science Foundation of Hebei Province in China (Nos.A2014201035 and E2014201037), the Education Office Research Foundation of Hebei Province in China (Nos.ZD2014036 and QN2014085), and the College Students Innovation and Entrepreneurship of Hebei University in China (Nos.2014041 and 2015063).