Stability issues of conjugated polymer/fullerene solar cells from a chemical viewpoint
| Autor: | Hummelen, Jc, Knol, J., Luis Sánchez, Kafafi, Zh |
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| Přispěvatelé: | Stratingh Institute for Chemistry, Rijksuniversiteit Groningen, Molecular Energy Materials |
| Jazyk: | angličtina |
| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | ORGANIC PHOTOVOLTAICS, 76-84 STARTPAGE=76;ENDPAGE=84;TITLE=ORGANIC PHOTOVOLTAICS ResearcherID Host Publication, 4108, 76-84 |
| Popis: | The efficiency of energy conversion and the stability or lifetime of 'plastic' photovoltaic cells, based on conjugated polymer/ fullerene blends, are the two main issues to be improved for this type of devices. The stability of these PV cells depends potentially on a large number of factors. A brief layer-by-layer overview of these factors is given, with main emphasis on the factors possibly playing a role in the active photovoltaic layer consisting of the interpenetrating network of a conjugated polymer and a fullerene derivative. Complicated sets of photochemical processes can take place in the pure materials and in the donor-acceptor blends, both in the absence and in the presence of oxygen. Especially, photochemical [2+2] cycloaddition and cycloreversion processes have been observed for fullerene derivatives and in certain mixtures containing an oligomer and a fullerene derivative. These and other (photo) chemical processes are very likely to have an influence on the performance of the photovoltaic cell. |
| Databáze: | OpenAIRE |
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