Influence of heat treatment on the properties of thermally evaporated copper selenide thin films
| Autor: | R. Arthi, P. Issac Nelson, B. Vidhya, E. Ajitha, A. Ashina, R. Rathes Kannan, T. Ponmudi selvan |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Band gap Mechanical Engineering 02 engineering and technology Substrate (electronics) 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Chemical engineering Mechanics of Materials Electrical resistivity and conductivity Phase (matter) General Materials Science Orthorhombic crystal system Thin film 0210 nano-technology Absorption (electromagnetic radiation) Stoichiometry |
| Zdroj: | Materials Letters. 223:14-16 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2018.03.148 |
| Popis: | A facile thermal evaporation is utilized to deposit copper selenide thin films at different substrate temperatures (Ts). Impact of substrate temperature on the film structure, morphology, optical and electrical properties was investigated. Structural transformation from orthorhombic to cubic phase with different stoichiometric compositions is evident upon an increase in substrate temperature. Film morphology demonstrates various shapes from scattered grains to columnar crystals upon heat treatment. The optical analysis illustrates strong absorption in the blue region and the band gap values lies in the range 1.54 eV–2.54 eV. The electrical resistivity was found to be in the order of 10−4 Ω cm. |
| Databáze: | OpenAIRE |
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