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Upconversion emission in multi-doped glasses for full colour display

2005; Institute of Physics; Volume: 38; Issue: 10 Linguagem: Inglês

10.1088/0022-3727/38/10/019

1361-6463

Zhongmin Yang, Zhouming Feng, Zhonghong Jiang,

Random lasers and scattering media

Upconversion luminescence characteristics of a multi-rare-earth-doped 0.05K2O–0.1ZnO–0.1BaO–0.2PbO–0.2GeO2–0.35TeO2 glass have been investigated under 976 nm excitation for potential use in full colour displays. Two luminescence ions, Er3+ and Tm3+, were used as blue, green and red emitters to control the colour of the emitted light. Sensitizer ions, Yb3+, were used to increase the upconversion emission intensity. With the substitution of Er3+ for Tm3+, the intensities of the blue, green and 657 nm upconversion emissions simultaneously increase.