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Efficient photocatalysis through conductive polymer coated FTO counter electrode in platinum free dye sensitized solar cells
- Source :
- Electrochimica Acta. 320:134544
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Platinum-free counter electrodes are crucial for developing cost effective solar energy harvesting technology. We describe here the fabrication of efficient platinum free FTO counter electrodes for dye sensitized solar cells based on pristine polyaniline, polyaniline doped with sulfuric acid, ammonuim lauryl sulfate, as well as binary doped with sulfuric acid and ammonium lauryl sulphate. The characteristics of these counter electrodes were analyzed using cyclic voltammetry, photocurrent density–voltage and electrochemical impedance spectroscopy measurements. At optimized fabrication conditions, the counter electrode shows significantly high photoelectric conversion efficiency of 4.54% compared to 4.03% for reference platinum counter electrode. Charge transfer resistance at the interface between electrolyte and counter-electrode is also decreased for the optimized polyaniline based counter electrode. Furthermore, the device presented characteristics of multiple start/stop ability and fast activity. The simple preparation procedure, low cost and improved photoelectric properties permit fabricated counter electrode to be a reliable alternative for dye sensitized solar cells.
- Subjects :
- Conductive polymer
Auxiliary electrode
Materials science
General Chemical Engineering
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Dielectric spectroscopy
chemistry.chemical_compound
Dye-sensitized solar cell
chemistry
Chemical engineering
Polyaniline
Electrode
Electrochemistry
Cyclic voltammetry
0210 nano-technology
Platinum
Subjects
Details
- ISSN :
- 00134686
- Volume :
- 320
- Database :
- OpenAIRE
- Journal :
- Electrochimica Acta
- Accession number :
- edsair.doi...........11f8f82c5d0a574e904b05750118a709