Upconversion luminescence of lead halide-modified Tm 3+ /Yb 3+ -codoped tellurite glasses
2005
The thermal stability, Raman spectra, and upconversion luminescence spectra of lead halide-modified Tm 3+ /Yb 3+ -codoped tellurite glasses ha ve been investigated, and the upconversion luminescence mechanism of Tm 3+ /Yb 3+ -codoped oxyhalide tellurite glasses were analyzed. The results sho wed that mi xed lead halide-modified Tm 3+ /Yb 3+ -codoped tellurite glass es possess good thermal stability, low phonon energy and intense upconversion blue lumines cence, which indicates that mixed lead halide-modified Tm 3+ /Yb 3+ -cod oped tellurite glasses can be used as a kind of potential host materials for upc onversion blue lasers.
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