The Luminescence Properties of Green YPO4: Tb3+,Ce3+ Phosphors for WLED

Jian Li; Li Min Dong; Qin Li; Zhi Dong Han

doi:10.4028/www.scientific.net/AMR.989-994.391

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994The Luminescence Properties of Green YPO4:...

The Luminescence Properties of Green YPO₄: Tb³⁺,Ce³⁺ Phosphors for WLED

Abstract:

LED as the fourth generation light source has been extensively studied. In order to get a high-performance White Light Emitting Diode (WLED) green phosphor, YPO₄:Ce³⁺,Tb³⁺ was prepared by co-precipitation. It was excited at 380nm. The structure, morphology, fluorescence property and colorimetry of the phosphors were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and fluorescence spectrophotometer. Final results show the optimal concentration ratio are 1:0.05:0.01. The crystal grain of luminescent material is 200 nm. When the bath temperature is 80°C and calcined at 1000°C for 3h, the luminescence performance of the luminescent material is excellent.

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Advanced Materials Research (Volumes 989-994)

Pages:

391-394

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.989-994.391

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Online since:

July 2014

Authors:

Jian Li, Li Min Dong*, Qin Li, Zhi Dong Han

Keywords:

Green Light-Emitting, LnPO₄, Rare Earth Doping, WLED

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