Prabhakar, Tejas and Jampana, Nagaraju (2011) Effect of sodium diffusion on the structural and electrical properties of Cu2ZnSnS4 thin films. In: Solar Energy Materials and Solar Cells, 95 (3). pp. 1001-1004.
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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.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier Science B.V.|
|Keywords:||CZTS; Sodium; Soda lime glass; Borosilicate; Ultrasonic Spray Pyrolysis|
|Department/Centre:||Division of Physical & Mathematical Sciences > Instrumentation and Applied Physics (Formally ISU)|
|Date Deposited:||29 Mar 2011 11:50|
|Last Modified:||29 Mar 2011 11:50|
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