Effect of Grain Size on Strain in a Copper Oxide Nanofilm for Gas Sensing Applications

Автор(ы) Sumanta Kumar Tripathy , Sanjay Kumar , Divya Aparna Narava

Gayatri Vidya Parishad College of Engineering (Autonomous), Madhurawada, Visakhapatanam, A.P., India

Выпуск Том 11, Год 2019, Номер 5
Даты Получено 05 июля 2019; в отредактированной форме 20 октября 2019; опубликовано online 25 октября 2019
Ссылка Sumanta Kumar Tripathy, Sanjay Kumar, Divya Aparna Narava, J. Nano- Electron. Phys. 11 No 5, 05040 (2019)
DOI https://doi.org/10.21272/jnep.11(5).05040
PACS Number(s) 68.37.Hk, 68.55.–a, 78.40.–q
Ключевые слова Band gap (27) , Thermal evaporation (10) , XRD (63) , Transmittance and optical characteristics.

In this study, copper oxide nanofilm is synthesized on glass substrate by thermal evaporation technique for gas sensing applications. During deposition, the distance between source and substrate is kept constant and the pressure of the chamber is kept at 1.010 – 4 torr. The rate of deposition is varied from 6 to 10 Å/s. The thickness of the film is kept constant at 150 nm. The film is heat treated at varying temperature and for different time interval to get the optimum result. Structural study is done by using the Debye-Scherrer formula. From XRD graph, strain analysis is carried out which reveals that strain increases with decrease in grain size which is useful to study gas sensing of different gases.

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