Solid-state photoelectrochemical cell using a polythiophene derivative as photoactive electrode
| Autor: | Emerson M. Girotto, M.-A. De Paoli, Ana Flávia Nogueira, W.A. Gazotti |
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| Rok vydání: | 2001 |
| Předmět: |
Photocurrent
Materials science Renewable Energy Sustainability and the Environment Open-circuit voltage Photoconductivity Quantum yield Electrolyte Photoelectrochemical cell Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Chemical engineering law Electrode Solar cell |
| Zdroj: | Solar Energy Materials and Solar Cells. 69:315-323 |
| ISSN: | 0927-0248 |
| DOI: | 10.1016/s0927-0248(00)00397-4 |
| Popis: | In this work, we investigated the photoelectrochemical behavior of poly(4,4′-dipentoxy-2,2′-bithiophene), poly(ET2), as a single electrode in a liquid electrolyte and also its use in a solid-state photoelectrochemical device using a polymeric electrolyte. The results showed a strong dependence of the photocurrent density on the type and concentration of the redox couple. The solid-state device exhibited a short-circuit current density of 4 μA cm−2 and an open-circuit voltage of 9 mV. The maximum quantum yield of photocurrent in the visible range was 0.17%, high when compared to other photoelectrochemical devices based on organic materials; however, it is low in comparison to solid-state devices using inorganic materials. This paper shows the viability of using organic polymeric electrolytes in the construction of photoelectrochemical devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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