Effect of sodium diffusion on the structural and electrical properties of Cu2ZnSnS4 thin films
| Autor: | Tejas Prabhakar, Nagaraju Jampana |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Soda-lime glass
Materials science Renewable Energy Sustainability and the Environment Borosilicate glass Mineralogy chemistry.chemical_element engineering.material Copper Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Soda lime chemistry Chemical engineering engineering Instrumentation Appiled Physics Kesterite CZTS Texture (crystalline) Thin film |
| Zdroj: | IndraStra Global. |
| ISSN: | 2381-3652 |
| Popis: | Cu2ZnSnS4 (CZTS) is a kesterite semiconductor consisting of abundantly available elements. It has a band gap of 1.5 eV and a large absorption coefficient. Hence, thin films made of this material can be used as absorber layers of a solar cell. CZTS films were deposited on soda lime and Na free borosilicate glass substrates through Ultrasonic Spray Pyrolysis. The diffusion of sodium from soda lime glass was found to have a profound effect on characteristics like grain size, crystal texture and conductivity of CZTS thin films. Copper ion concentration also varied during the deposition and it was observed that the carrier concentration was enhanced when there was a deficiency of copper in the films. The effect of sodium diffusion and copper deficiency in enhancing the structural and electrical properties of CZTS films are presented in this paper. (C) 2010 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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