Author Affiliations
Abstract
1 College of Physics Science & Technology, Hebei University, Baoding 071002, China
2 Tangshan Vocational & Technical College, Tangshan 063000, China
3 Industrial & Commercial College, Hebei University, Baoding 071002, China
4 Department of Foreign Language Teaching and Research, Hebei University, Baoding 071002, China
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).
光电子快报(英文版)
2015, 11(6): 430