Simple and inexpensive electrodeposited silver/polyaniline composite counter electrodes for dye-sensitized solar cells
| Autor: | Azhar A. Zaidi, Ayesha Ashraf, Afzal H. Kamboh, Abdul Waheed Anwar, Saima Bashir, Rehana Sharif, Sheeba Ghani, Nosheen Zafar, Shamaila Shahzadi |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
Mechanical Engineering Composite number chemistry.chemical_element Substrate (chemistry) Electrochemistry chemistry.chemical_compound Dye-sensitized solar cell chemistry Polymerization Chemical engineering Mechanics of Materials Polyaniline Electrode General Materials Science Platinum |
| Zdroj: | Journal of Materials Science. 50:1469-1477 |
| ISSN: | 1573-4803 0022-2461 |
| DOI: | 10.1007/s10853-014-8708-z |
| Popis: | Silver and polyaniline (Ag/PANI) composite counter electrodes (CEs) have been prepared by electro- chemical polymerization on stainless steel substrate using different silver (Ag) concentrations for dye-sensitized solar cells (DSSC). The effect of Ag concentration on the properties of fabricated Ag/PANI composite CEs, such as morphology, electrical conductivity, oxidation and reduc- tion potential, and electrochemical activity of I3 - reduc- tion, is investigated. Highest cathodic current density (3.4 mA), low charge transfer resistance (2.15 X), and good electrocatalytic activity of I � =Iredox couple for CE are obtained at 0.07 M concentration of silver in Ag/PANI composite. DSSC based on this CE shows best photovol- taic performance with conversion efficiency up to 7.31 %. This study indicates that the Ag/PANI composite prepared electrochemically is possible substitute of the expensive Platinum as CEs for DSSCs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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