Incident Angle Dependence of Organic Solar Cells

POSTER

Abstract

We have been recently studying the use of interference effects to enhance optical absorption in polymer photovoltaic cells. These interference effects are expected to be angle dependent. We measure here the angle dependent absorption and compare with numerical simulations. The cells used were P3HT/PCBM active layer, organic photovoltaic cells. The angular dependence of the cells' reflection was measured using an Ocean Optics light source and spectrophotometer and a precision rotary stage apparatus. The experimental results were compared to a Matlab simulation of the characteristic matrix problem. Analysis showed that the reflection/absorption peaks predicted by the simulation largely coincided in wavelength to those observed in experiment. Moreover, no additional cavity resonance can be attributed to incidence angle.

Authors

  • Vincent DeGeorge

    John Carroll University

  • Carla Benton

    Fratii Buzesti College, Craiova, Romania, Cleveland State University, University of Gothenburg, Sweden, Case Western Reserve University, HISKP Universitaet Bonn, IKP-3 Forschungszentrum Juelich, IAS-4 Forschungszentrum Juelich, Ruhr-Universitaet Bochum, IUPUI, Miami University, Physics Department, Kent State University, LCI, Kent State University, National High Magnetic Field Lab, Brookhaven National Laboratory, University of Wisconsin Oshkosh, The University of Akron

  • Carla Benton

    Fratii Buzesti College, Craiova, Romania, Cleveland State University, University of Gothenburg, Sweden, Case Western Reserve University, HISKP Universitaet Bonn, IKP-3 Forschungszentrum Juelich, IAS-4 Forschungszentrum Juelich, Ruhr-Universitaet Bochum, IUPUI, Miami University, Physics Department, Kent State University, LCI, Kent State University, National High Magnetic Field Lab, Brookhaven National Laboratory, University of Wisconsin Oshkosh, The University of Akron