Gold-Doped Tin Oxide Film for Highly Sensitive Carbon Monoxide Sensing
| Autor: | Rahul Prajesh, Vikas Saini, Ashok Sharma, Mohd Nahid, Jitendra Bhargava, Ajay Agarwal, Vinay Goyal |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Permissible exposure limit Materials science Doping Inorganic chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Tin oxide 01 natural sciences Electronic Optical and Magnetic Materials Highly sensitive chemistry.chemical_compound Operating temperature chemistry Sputtering 0103 physical sciences Materials Chemistry Electrical and Electronic Engineering Thin film 0210 nano-technology Carbon monoxide |
| Zdroj: | Journal of Electronic Materials. 50:554-561 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/s11664-020-08613-w |
| Popis: | This paper presents the development of gold-doped tin oxide (SnO2) film, realized by radiofrequency (RF) sputtering, which is highly sensitive for carbon monoxide (CO) gas. According to the Occupational Safety and Health Administration (OSHA), human exposure to 50 ppm CO is safe up to 8 h (as permissible exposure limit), but inhalation of higher concentrations of CO can cause headache, dizziness, nausea, etc. Hence, it is imperative to detect CO gas in low concentrations. The receptor films were prepared via reactive co-sputtering of high-purity Sn and Au targets and characterized by x-ray diffraction (XRD), which confirmed the presence of SnO2 and gold. The thin films of pristine SnO2 and gold-doped SnO2 were also examined through field emission scanning electron microscopy (FESEM) images, showing the distinction in their structures. A reasonably enhanced response of ~ 56.4% was exhibited by gold-doped SnO2 compared to 15.5% for pristine SnO2 for 50 ppm CO at operating temperature of each film. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink