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Solvent volume dependent physical properties and electrocatalytic ability of nebulizer spray deposited CuInGaS 2 counter electrode for dye-sensitized solar cells
C. Ravi Dhas,
A. Jennifer Christy,
R. Venkatesh,
Subhendu K. Panda,
B. Subramanian,
K. Ravichandran,
P. Sudhagar,
A. Moses Ezhil Raj,
Sudhagar Pitchaimuthu 
Thin Solid Films, Volume: 653, Pages: 73 - 81
Swansea University Author:
Sudhagar Pitchaimuthu
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DOI (Published version): 10.1016/j.tsf.2018.03.017
Abstract
CuInGaS2 (CIGS) thin films were coated using nebulizer spray technique for different solvent volumes (10, 30, 50 and 70 ml) at the substrate temperature of 350 °C. The structural, optical and electrical properties were studied for the prepared CIGS thin films. CIGS thin films exhibited tetragonal st...
| Published in: | Thin Solid Films |
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| ISSN: | 00406090 |
| Published: |
2018
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa39017 |
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| Abstract: |
CuInGaS2 (CIGS) thin films were coated using nebulizer spray technique for different solvent volumes (10, 30, 50 and 70 ml) at the substrate temperature of 350 °C. The structural, optical and electrical properties were studied for the prepared CIGS thin films. CIGS thin films exhibited tetragonal structure and the maximum crystallite size was calculated for the film deposited using 50 ml solvent volume. The surface morphology of CIGS thin films was analyzed from scanning electron microscopy and atomic force microscopy studies. The electrical parameters of CIGS thin films such as resistivity, carrier concentration and mobility were examined using four probe method and Hall measurements. Electrocatalytic activities of the CIGS films towards redox couple (I−/I3−) were analyzed by cyclic voltammograms, electrochemical impedance spectroscopy, and Tafel polarization measurements. The high photocurrent efficiency was obtained for the CIGS counter electrode prepared using 50 ml solvent volume. |
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| Keywords: |
Thickness; Copper indium gallium sulfide; Nebulizer spray; Counter electrode; Dye-sensitized solar cells |
| College: |
Faculty of Science and Engineering |
| Start Page: |
73 |
| End Page: |
81 |