Mid infrared fluorescence characteristics and application of Co2+:ZnS doped chalcogenide glass-ceramics
Mid infrared fluorescence characteristics and application of Co2+:ZnS doped chalcogenide glass-ceramics
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DOI：
10.1016/j.ceramint.2021.12.060
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发表时间：
2021-12
影响因子：
5.2
通讯作者：
Yiming Gui;Xusheng Zhang;Kelun Xia;Haotian Gan;Lelu He;Yongnian Guan;Zijun Liu;Zhiyong Yang-
中科院分区：
文献类型：
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作者：
Yiming Gui;Xusheng Zhang;Kelun Xia;Haotian Gan;Lelu He;Yongnian Guan;Zijun Liu;Zhiyong Yang-
采用单轴热压工艺制备了具有宽带中红外发射的Co2+：ZnS硫系玻璃。在Co~（2+）的发射光谱范围内，基体玻璃（As~2S5）和晶体（Co~（2+）：ZnS）之间的折射率差Δ n控制在0.0042，以减小散射效应。用1550 nm激光二极管激发样品，在室温下观察到2 - 4 μ m的超宽带中红外发射。在90-290 K温度范围内，测量了Co~（2+）：ZnS硫系玻璃的荧光强度和寿命的显著变化。当用作温度检测器时，观察到约0.18 K的分辨率。利用样品的强宽发射特性，构建了丁烷气敏装置，丁烷的检测灵敏度达到56 ppm。这些结果表明，该微晶玻璃可用作气体和温度的光学传感器。
A Co2+:ZnS-doped chalcogenide glass with broadband mid-infrared emission was prepared by using a hot uniaxial pressing process. The refractive index difference (Δn) between matrix glass (As2S5) and crystal (Co2+:ZnS) was controlled to be 0.0042 in the emission spectral range of Co2+to minimize the scattering effect. An ultrabroadband mid-infrared emission of 2–4 μm was observed at room temperature in the samples after excitation by using a commercially available laser diode of 1550 nm. The significant changes in the lifetime and fluorescence intensity of Co2+:ZnS-doped chalcogenide glass were measured in the temperature range of 90–290 K. A resolution of approximately 0.18 K was observed when used as a temperature detector. Furthermore, a gas-sensing device was built by using the strong and broad emissions of the sample, and the detection sensitivity of butane reached 56 ppm. These results show that this glass-ceramics can be used as optical sensing of gas and temperature.