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Solvent volume-driven CuInAlS2 nanoflake counter electrode for effective electrocatalytic tri-iodide reduction in 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 
Journal of Solid State Electrochemistry
Swansea University Author:
Sudhagar Pitchaimuthu
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DOI (Published version): 10.1007/s10008-018-3941-z
Abstract
The influence of solvent volume on the properties of CuInAlS2 (CIAS) thin films deposited using simple and cost-effective nebulizer spray technique is studied. The polycrystalline CIAS thin films with tetragonal structure have been observed from the XRD results. SEM images show nanoflake-like struct...
| Published in: | Journal of Solid State Electrochemistry |
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| ISSN: | 1432-8488 1433-0768 |
| Published: |
2018
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa39888 |
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| Abstract: |
The influence of solvent volume on the properties of CuInAlS2 (CIAS) thin films deposited using simple and cost-effective nebulizer spray technique is studied. The polycrystalline CIAS thin films with tetragonal structure have been observed from the XRD results. SEM images show nanoflake-like structure on the film surface. The elemental presence and its chemical composition were examined by XPS and EDS. The deposited CIAS film for different solvent volume exhibited p-type semiconductor. Cyclic voltammetry, electrochemical impedance spectroscopy, and Tafel polarization measurements demonstrated that CIAS counter electrodes are capable of tri-iodide reduction process. The performances of photocurrent density-voltage for the CIAS CE exhibited the maximum efficiency of 2.55% with the short-circuit current density of 7.22 mA cm−2. |
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| Keywords: |
CIAS, Nebulizer spray, Thickness, Counter electrode, Dye-sensitized solar cells |
| College: |
Faculty of Science and Engineering |