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The role of applied magnetic field in Co-doped ZnS thin films fabricated by pulsed laser deposition

机译：应用磁场在脉冲激光沉积中共掺杂ZnS薄膜中的作用

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摘要

In recent years, chalcogenide glasses such as ZnS or ZnSe have attracted much attention due to their excellent optical properties. The structure of chalcogenide materials is part of the important factors affecting their optical properties. In this paper, the magnetic environment was set to control the growth structure of nano film in the process of deposition, which could be affected the optical properties of Co-doped ZnS (ZnS:Co) nano-film. All films were prepared by pulsed laser deposition (PLD). The results of XRD and Raman proved that the structure of the film was changed by the magnetic field. A broader band fluorescence characteristic in the film was shown by PL spectrum, which revealed a substantially improvement of the optical properties for this material. Under the condition of the magnetic field, consistency between FDTD (Finite difference time domain method, FDTD) simulation and experimental results further confirmed the improvement of the optical properties. The findings warrant that the optimized ZnS:Co thin films could be applied to develop efficient optical waveguide devices and laser gain media in the infrared field.
机译：近年来，由于其优异的光学性质，硫属化物玻璃如Zns或ZnSE引起了很多关注。硫属化物材料的结构是影响其光学性质的重要因素的一部分。本文将磁环境设定为控制沉积过程中纳米膜的生长结构，这可能影响共掺杂ZnS（ZnS：Co）纳米膜的光学性质。通过脉冲激光沉积（PLD）制备所有薄膜。 XRD和拉曼的结果证明了薄膜的结构由磁场改变。通过PL光谱显示薄膜中的更广泛的带荧光特性，这揭示了这种材料的光学性质的显着提高。在磁场的条件下，FDTD（有限差分时间域方法，FDTD）模拟和实验结果之间的一致性进一步证实了光学性质的改善。该调查结果保证优化的ZnS：CO薄膜可以应用于在红外场中开发有效的光波导器件和激光增益介质。

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