Archive > Volume 11 Issue 6 > 2015,11(6):430-433. DOI:10.1007/s11801-015-5197-5 CSTR:[cstr] Prev Next
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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This work has been supported by the National Natural Science Foundation of China (No.50902042), the Natural Science Foundation of Hebei
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