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Semiconductor Aspects of Organic Bulk Heterojunction Solar Cells

  • Christoph J. Brabec
Chapter
Part of the Springer Series in Materials Science book series (SSMATERIALS, volume 60)

Abstract

During the last few years organic solar cells have been discussed as a promising alternative to inorganic semiconductors for renewable energy production. These organic photovoltaic devices offer the possibility of low-cost fabrication of large-area solar cells for harvesting energy from sunlight. Organic solar cells naturally provide many desirable properties such as low price, low weight, flexibility and semi-transparency. These features have fuelled the interest of both academia and industry. Aside from possible economic advantages, organic materials also possess low specific weight and are mechanically flexible — properties that are desirable for a solar cell to guarantee easy integration of the modules on any surface, from glass windows to textiles and clothes. Several geometries for organic photovoltaic devices have been investigated to date. All in all, it appears fully worthwhile to follow up such a vision by research and development. The question is: what is the current status of these solar cells, and what further developments are needed to create a product for the market? In the present chapter, various developments and aspects of efficiency, stability, thin film physics and production technologies will be discussed for one type of organic solar cell: the bulk heterojunction device.

Keywords

Solar Cell Active Layer Work Function High Occupied Molecular Orbital Lower Unoccupied Molecular Orbital 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Springer-Verlag Berlin Heidelberg 2003

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  • Christoph J. Brabec

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