Record number :
Title of article :
Sol–gel preparation and photoluminescence property of YBO3:Eu3+/Tb3+ nanocrystalline thin films
Author/Authors :
Hongliang Zhu، نويسنده , , Li Zhang، نويسنده , , Tiantai Zuo، نويسنده , , Xiaoyun Gu، نويسنده , , Zhengkai Wang، نويسنده , , Luming Zhu، نويسنده , , Kuihong Yao ، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
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Abstract :
YBO3:Eu3+/Tb3+ nanocrystalline thin films were successfully deposited onto quartz glass substrates by Pechini sol–gel dip-coating method, using rare-earth nitrates and boric acid as starting materials. The crystal structure, morphology, chemical composition and photoluminescence property of the films were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy and fluorescence spectrophotometer. The results of XRD, AFM, XPS and FTIR revealed that the films were composed of spherical YBO3:Eu3+/Tb3+ nanocrystals with average grain size of 80 nm. The YBO3:Eu3+ film exhibited strong orange emission at 595 nm and red emission at 615 nm, which were, respectively ascribed to the (5D0→7F1) and (5D0→7F2) transitions of Eu3+. The YBO3:Tb3+ film showed dominant green emission at 545 nm due to the 5D4–7F5 transition of Tb3+.
Keywords :
Film , Phosphors , Borates , Photoluminescence , Sol–gel method
Journal title :
Applied Surface Science
Link To Document :