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Communication Dans Un Congrès Année : 2008

On a strategy to enhance the performances of organic photovoltaic devices

Résumé

The finite supply of fossil fuel resources and the disastrous long-term consequences of CO2 emissions into the atmosphere lead to the urgency of developping renewable energy sources. Photovoltaic technology is certainly a part of the solution to the growing energy needs and an essential component of future global energy production. Currently, crystalline Silicon is the most important semiconductor material used in solar cells. Three main technologies are developed in the solar cell Silicon production : • solid monocrystalline Si produced from stretched Si and then cut into circular wafers ; • solid multicrystalline Si, produced from electronic industry wastes into ingot-shaped pieces cut into thin wafers ; • thin film Si cells, made of polycrystalline, nanocrystalline or amorphous Si. All these technologies suffer from two serious drawbacks : the relatively high-cost production and the basic high-temperature processing of Silicon. Semiconducting polymers (and more generally organic materials) provide an alternative route to solar cell technology. Organic PV would be a low-cost, lightweight and printable solution on large areas that would be particularly applicable at middle course to roof-top panels, but at short course, for novel applications such as smart fabrics, nomad devices or textile. Most of currently organic solar cells are made of a mixture of a conjugated polymer such as poly(3-hexylthiophene), P3HT as a donnor with C60 fullerene derivatives as an acceptor. The best power conversion efficiency published (world-record) is about 6% but with small area cells. This efficiency has to be improved and particularly with large area devices.The present presentation will try to give some routes in order to optimize and to increase the efficiency.

Domaines

Electronique
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Dates et versions

hal-00415136 , version 1 (10-09-2009)

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  • HAL Id : hal-00415136 , version 1

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Jean-Paul Parneix. On a strategy to enhance the performances of organic photovoltaic devices. ICONSAT-2008, Feb 2008, CHENNAI, India. ⟨hal-00415136⟩
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