Liquefied petroleum gas sensing performance of CdS thin film-based sensor

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications Pub Date : 2025-09-30 DOI:10.1016/j.inoche.2025.115592

Adebowale Clement Adebisi , Allen Abiodun Olorunkosebi , Moses Eluyemi , Frank Ochuko Efe , Hammid Ayodeji Rasheed , Marcus Adebola Eleruja , Bolutife Olofinjana

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Abstract

This study investigated the potential of MOCVD CdS thin films as a sensor for liquefied petroleum gas (LPG). The structural and morphological properties of the thin films were investigated using X-ray diffraction (XRD) and field emission scanning electron microscope (FESEM). The LPG sensing ability of the CdS thin films was evaluated by measuring the electrical response of the CdS thin films upon exposure to LPG at various concentrations. XRD revealed a wurtzite hexagonal structure of CdS, while FESEM analysis revealed a porous morphology. The LPG sensing results showed a significant increase in resistance of the CdS thin film-based sensor upon exposure to LPG, indicating the adsorption of gas molecules leading to subsequent changes in carrier concentration. The response and recovery times were influenced by both LPG concentration and film deposition conditions. The CdS thin film-based sensor exhibited a high sensitivity of 80 % to LPG compared to CO₂ and N₂.

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基于CdS薄膜的液化气传感性能研究

本研究探讨了MOCVD CdS薄膜作为液化石油气（LPG）传感器的潜力。利用x射线衍射仪（XRD）和场发射扫描电镜（FESEM）研究了薄膜的结构和形态特性。通过测量CdS薄膜在不同浓度LPG作用下的电响应来评价CdS薄膜的LPG传感能力。XRD分析显示CdS为纤锌矿六方结构，FESEM分析显示CdS为多孔结构。LPG传感结果显示，暴露于LPG后，CdS薄膜传感器的电阻显著增加，表明气体分子的吸附导致随后载流子浓度的变化。液化石油气浓度和膜沉积条件对响应和恢复时间均有影响。与CO2和N2相比，CdS薄膜传感器对LPG的灵敏度高达80%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.