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Synthesis and photoluminescent characteristics of red phosphors (Y,Gd)2O3:Eu3+ for VUV excitation

Woo-Jung Park 1Mong-Kwon Jung 1Ayse Dulda 2Takaki Masaki 1Dae Ho Yoon 1,2

1. School of Advanced Materials Science and Engineering Sungkyunkwan University (SKKU), 300 Cheoncheon-dong, Jangan-gu, Suwon, Suwon 440-746, Korea, South
2. Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), 300 Cheoncheon-dong, Jangan-gu, Suwon 440-746, Korea, South


Recently, an improved performance of displays and lamps requires high quality of phosphors for sufficient brightness and long-term stability. To improve the luminescent characteristics of the phosphors, extensive research has been carried out on rare earth-activated oxide-based phosphors because of good luminescence and chemical stability. Among these phosphors, Y2O3:Eu3+ and Gd2O3:Eu3+ exhibit strong ultraviolet (UV) and cathode ray excited luminescence. Y2O3:Eu3+ and Gd2O3:Eu3+ are also used as composite compositions to improve the luminescent properties.

In this work, the red phosphors (Y,Gd)2O3:Eu3+ were synthesized by liquid phase precursor methods. We investigated luminescent properties of the samples by the effect of firing temperature. The samples were investigated by analyzing their particle size and crystal structure with scanning electron microscopy (SEM) and X-ray diffractometer (XRD). Also the excitation and emission spectra were measured at a room temperature using photoluminescence (PL) under UV and VUV range.


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Presentation: Poster at E-MRS Fall Meeting 2007, Symposium A, by Woo-Jung Park
See On-line Journal of E-MRS Fall Meeting 2007

Submitted: 2007-05-13 15:06
Revised:   2009-06-07 00:44