NIMTE OpenIR  > 2018专题
Color-tunable Ca10Na(PO4)(7):Ce3+/Tb3+/Mn2+ phosphor via energy transfer
Sun, Jingru; Huang, Ping; Liu, Yongfu; Wang, Lei; Cui, Cai'e; Shi, Qiufeng; Tian, Yue
AbstractA series of Ca10Na(PO4)(7):Ce3+/Tb3+/Mn2+ (CNPO:Ce3+/Tb3+/Mn2+) phosphors with high brightness were synthesized by high-temperature solid-state method. X-ray diffraction (XRD), scanning electron microscopy (SEM), diffuse reflectance spectra (DRS), photoluminescence (PL) spectra, luminescence decay curves and thermally stability were performed to characterize the as-prepared samples. For Ce3+-doped samples, an intense and broad band emission is present under 265 nm excitation. When Ce3+ and Tb3+ are codoped, energy transfer (ET) process from Ce3+ to Tb3+ is demonstrated with electric dipole-dipole interaction. The internal and external quantum efficiencies (QEs) of CNPO:0.15Ce(3+), 0.04Tb(3+), 0.005Mn(2+) are measured to 76.79% and 54.11% under 265 nm excitation and temperature-dependent PL intensity can remain 51.78% at 150 degrees C of its initial intensity at 25 degrees C. It is indicated that single-phased white light-emitting CNPO:Ce3+/Tb3+/Mn2+ phosphor can serve as a promising phosphor for illumination devices. (C) 2018 Published by Elsevier B.V.
KeywordLight-emitting-diodes White-light Luminescence Properties Transfer Behavior W-leds Mn2++ Ce3++ Tb3++ Photoluminescence Emission
Subject AreaEngineering ; Polymer Science
Document Type期刊论文
Recommended Citation
GB/T 7714
Sun, Jingru,Huang, Ping,Liu, Yongfu,et al. Color-tunable Ca10Na(PO4)(7):Ce3+/Tb3+/Mn2+ phosphor via energy transfer[J]. JOURNAL OF RARE EARTHS,2018,36(6):567-574.
APA Sun, Jingru.,Huang, Ping.,Liu, Yongfu.,Wang, Lei.,Cui, Cai'e.,...&Tian, Yue.(2018).Color-tunable Ca10Na(PO4)(7):Ce3+/Tb3+/Mn2+ phosphor via energy transfer.JOURNAL OF RARE EARTHS,36(6),567-574.
MLA Sun, Jingru,et al."Color-tunable Ca10Na(PO4)(7):Ce3+/Tb3+/Mn2+ phosphor via energy transfer".JOURNAL OF RARE EARTHS 36.6(2018):567-574.
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