ABSTRACT

In this proposed research article, Tin Sulphide is synthesised and coated over an optical-fibre by Chemical Bath Deposition (CBD), which is to be employed for sensing gases (Nitrogen dioxide-NO₂, Carbon dioxide-CO₂ and Sulphur dioxide-SO₂). The structural and optical properties of tin sulphide are characterised by X-ray Diffraction analysis (XRD), Ultraviolet-visible absorption spectroscopy, Photoluminescence spectroscopy (PL), Ultraviolet-visible Spectroscopy in Reflectance mode, Scanning Electron Microscopy images (SEM) and Energy-Dispersive X-ray analysis (EDX). The sensitivity and selectivity of the gas-sensing application are also analysed, and it is found that the optical fibre coated for 30 minutes showed appreciable response towards SO₂ gas, when compared to the response towards the other two gases.

摘要

在这篇拟议的研究文章中，硫化锡是通过化学浴沉积 (CBD) 合成并涂覆在光纤上的，用于传感气体（二氧化氮-NO ₂、二氧化碳-CO ₂和二氧化硫-SO ₂ )。硫化锡的结构和光学性质通过 X 射线衍射分析 (XRD)、紫外-可见吸收光谱、光致发光光谱 (PL)、反射模式下的紫外-可见光谱、扫描电子显微镜图像 (SEM) 和能量-色散 X 射线分析 (EDX)。还分析了气敏应用的灵敏度和选择性，发现涂层30分钟的光纤对SO _{2表现出明显的响应}气体，与对其他两种气体的响应相比。