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Development of an automated ultrasonic spray pyrolysis system and the growth of Cu2ZnSnS4 thin films

Deepa, KG and Jampana, Nagaraju (2016) Development of an automated ultrasonic spray pyrolysis system and the growth of Cu2ZnSnS4 thin films. In: JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 117 . pp. 141-146.

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Official URL: http://dx.doi.org/10.1016/j.jaap.2015.12.004

Abstract

An automated ultrasonic spray pyrolysis system is fabricated for the growth of thin films. The system is equipped with x-y movement and enables film deposition in different patterns and spray rates. Cu-2(Zn,Sn)S-4 (CZTS) films are deposited using this setup. The substrate temperature (T-s) is varied from 240 to 490 degrees C. Kesterite CZTS phase is observed in all the films together with binary phases. The films prepared at T-s <340 degrees C showed SnxSy phase and those at T-s >340 degrees C showed Cu2S phase. Sulfur incorporation is maximum (40%) at 440 degrees C and the films showed better morphology. The Cu and S concentrations are varied to remove binary phases. Depth wise elemental analysis confirmed the existence of single phase CZTS. p-Type CZTS films of resistivity in the range of 10(2)-10(3) Omega cm are obtained. (C) 2015 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Keywords: Solar energy materials; Ultrasonic spray pyrolysis; Experimental setup
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Depositing User: Id for Latest eprints
Date Deposited: 02 Apr 2016 10:11
Last Modified: 02 Apr 2016 10:11
URI: http://eprints.iisc.ac.in/id/eprint/53504

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