{"title":"旋转速度对溶胶-凝胶旋转镀膜法合成的用于 H2S 气体传感的氧化铜薄膜物理特性的影响","authors":"Jyoti, Rajesh Kumar","doi":"10.1007/s11664-024-11411-3","DOIUrl":null,"url":null,"abstract":"<p>In this paper, we study the effects of spinning speed on the electrical, optical, structural, morphological, and gas sensing properties of thin films deposited on glass substrates by sol–gel spin coating, using copper acetate dihydrate as the precursor. The deposition of the films was carried out at varying spinning speeds from 1500 rpm to 2500 rpm to achieve different thicknesses ranging from 157 nm to 470 nm, respectively. The results revealed that the resistivity of the films decreased from 75.5 Ω·m to 42.5 Ω·m with the decrease in spinning speed. X-ray diffraction (XRD) studies demonstrated that the crystallite size varied in the range of 18.14–27.48 nm. The band gap of the samples was found to vary from 2 eV to 1.69 eV, revealing that these samples were suitable for gas sensing applications. Field-emission scanning microscopy (FESEM) studies showed that the prepared samples were porous in nature and were suitable for H<sub>2</sub>S gas detection. The films were examined at different operating temperatures with different concentrations of H<sub>2</sub>S gas. The results showed that the response toward hydrogen sulfide gas varied with varying thickness of the samples. The CuO thin films showed the highest response toward hydrogen sulfide gas at a temperature of 25°C.</p>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Spin Speed on the Physical Characteristics of CuO Films Synthesized by Sol–Gel Spin Coating for H2S Gas Sensing\",\"authors\":\"Jyoti, Rajesh Kumar\",\"doi\":\"10.1007/s11664-024-11411-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In this paper, we study the effects of spinning speed on the electrical, optical, structural, morphological, and gas sensing properties of thin films deposited on glass substrates by sol–gel spin coating, using copper acetate dihydrate as the precursor. The deposition of the films was carried out at varying spinning speeds from 1500 rpm to 2500 rpm to achieve different thicknesses ranging from 157 nm to 470 nm, respectively. The results revealed that the resistivity of the films decreased from 75.5 Ω·m to 42.5 Ω·m with the decrease in spinning speed. X-ray diffraction (XRD) studies demonstrated that the crystallite size varied in the range of 18.14–27.48 nm. The band gap of the samples was found to vary from 2 eV to 1.69 eV, revealing that these samples were suitable for gas sensing applications. Field-emission scanning microscopy (FESEM) studies showed that the prepared samples were porous in nature and were suitable for H<sub>2</sub>S gas detection. The films were examined at different operating temperatures with different concentrations of H<sub>2</sub>S gas. The results showed that the response toward hydrogen sulfide gas varied with varying thickness of the samples. The CuO thin films showed the highest response toward hydrogen sulfide gas at a temperature of 25°C.</p>\",\"PeriodicalId\":626,\"journal\":{\"name\":\"Journal of Electronic Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2024-09-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Electronic Materials\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s11664-024-11411-3\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electronic Materials","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s11664-024-11411-3","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Effect of Spin Speed on the Physical Characteristics of CuO Films Synthesized by Sol–Gel Spin Coating for H2S Gas Sensing
In this paper, we study the effects of spinning speed on the electrical, optical, structural, morphological, and gas sensing properties of thin films deposited on glass substrates by sol–gel spin coating, using copper acetate dihydrate as the precursor. The deposition of the films was carried out at varying spinning speeds from 1500 rpm to 2500 rpm to achieve different thicknesses ranging from 157 nm to 470 nm, respectively. The results revealed that the resistivity of the films decreased from 75.5 Ω·m to 42.5 Ω·m with the decrease in spinning speed. X-ray diffraction (XRD) studies demonstrated that the crystallite size varied in the range of 18.14–27.48 nm. The band gap of the samples was found to vary from 2 eV to 1.69 eV, revealing that these samples were suitable for gas sensing applications. Field-emission scanning microscopy (FESEM) studies showed that the prepared samples were porous in nature and were suitable for H2S gas detection. The films were examined at different operating temperatures with different concentrations of H2S gas. The results showed that the response toward hydrogen sulfide gas varied with varying thickness of the samples. The CuO thin films showed the highest response toward hydrogen sulfide gas at a temperature of 25°C.
期刊介绍：
The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications.
Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field.
A journal of The Minerals, Metals & Materials Society.
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