Single-material multilayer ZnS as anti-reflective coating for solar cell applications
| Autor: | Aus A. Najim, Malek A.H. Muhi, Kadhim R. Gbashi, Ammar T. Salih |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Band gap 02 engineering and technology 01 natural sciences law.invention Condensed Matter::Materials Science chemistry.chemical_compound Optics law 0103 physical sciences Solar cell Electrical and Electronic Engineering Physical and Theoretical Chemistry Thin film 010302 applied physics business.industry 021001 nanoscience & nanotechnology Zinc sulfide Atomic and Molecular Physics and Optics Grain size Electronic Optical and Magnetic Materials Anti-reflective coating chemistry Quantum dot 0210 nano-technology business Refractive index |
| Zdroj: | Optics Communications. 388:84-89 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2016.12.035 |
| Popis: | Multilayer Zinc Sulfide (ZnS) is a promising low cost antireflective coating for solar cell applications, in this work; thin films with novel structure containing cubic and hexagonal phases were successfully deposited by thermal evaporation technique with three different layers. XRD analysis confirms the existence of both phases and high specific surface area. AFM analysis reveals that films with three layers have lower roughness and average grain size than other films. The optical measurements obtained by UV–vis, the calculated values of refractive index and reflectivity using some well known refractive index-band gap relations indicate that thin films with triple layer TL-ZnS have lower refractive index and reflectivity than other films, empirical equations were suggested and show the quantum confinement effects on band gap and reflectivity. |
| Databáze: | OpenAIRE |
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