Excitability of high-energy ultraviolet radiation for Dy³⁺ in antimony phosphate glasses

Dy³⁺ doped antimony phosphate (ZASP) glasses are synthesized and the specificity of the luminescence behavior is demonstrated. Different from the conventional long-wave ultraviolet (UVA) exciting cases, the excitable area of Dy³⁺ doped ZASP glasses is extended to high-energy ultraviolet radiation including medium-wave ultraviolet (UVB) and short-wave ultraviolet (UVC) spectral regions. The quantum efficiency for ⁴F_9/2 level of Dy³⁺ in low- and medium-concentration Dy₂O₃ doping cases reaches 95.0 % and 66.7 %, respectively, confirming the emission effectiveness from Dy³⁺ in ZASP glasses. The values of energy-transfer probability (P) have obvious difference while using 340 nm and 540 nm as monitoring wavelengths, so asthe energy-transfer efficiencies (η), which are related to the energy-transfer processes from discrepant Sb³⁺ donors to Dy³⁺ acceptors, were in-equivalent. The effective excitability of high-energy ultraviolet radiation illustrates that Dy³⁺ doped ZASP glasses are a promising candidate in developing visible light sources, display devices and tunable visible lasers.