Impact of sequential annealing on the characteristics of thermally evaporated semiconductor Cu2Se/ZnSe/Cu2Se sandwich structure
| Autor: | R. Rathes Kannan, S. Rajesh, P. Issac Nelson, B. Vidhya, A. Mohan |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Photoluminescence Annealing (metallurgy) business.industry Band gap Analytical chemistry 02 engineering and technology Conductivity 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials Semiconductor Monolayer Crystallite Emission spectrum Electrical and Electronic Engineering 0210 nano-technology business |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 29:7393-7401 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-018-8730-z |
| Popis: | The paper deals with the deposition of Cu2Se/ZnSe/Cu2Se sandwich structure using facile thermal evaporation and the impact of sequential annealing on the characteristics of sandwich structure. XRD reveals the polycrystalline nature of sandwich structures. Laser Raman was carried out to explore the crystalline phase of sandwich structure. SEM analysis shows good crystalline nature with well-distinguished particles over the ZnSe layer. Cross-sectional FESEM image confirms the merged layer with no distinguished separate monolayers. Photoluminescence emission spectra of films exhibit violet emission and blue shifts upon annealing. Shifts and splits in optical bandgap values were observed upon annealing. Hall measurements infer p-type conductivity for the sandwich structure. |
| Databáze: | OpenAIRE |
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