1. Effect of anisotropic charge transport on device characteristics of polymer solar cells
- Author
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Victor Pryamitsyn, Manas Shah, and Venkat Ganesan
- Subjects
Materials science ,Physics and Astronomy (miscellaneous) ,Condensed matter physics ,business.industry ,Exciton ,Charge (physics) ,Acceptor ,Polymer solar cell ,Condensed Matter::Materials Science ,Electrode ,Perpendicular ,Optoelectronics ,Diffusion (business) ,Anisotropy ,business - Abstract
We present a model for photovoltaic device characteristics based on drift-diffusion ideas which allows for prescription of arbitrary morphologies of donor and acceptor phases while simultaneously incorporating the role of anisotropic charge transport of holes and excitons. We use such a model to address the interplay between anisotropic charge transport and the orientational and/or crystalline ordering of donor molecules. We presents results illustrating the influence of the degree of orientational ordering, the impact of ordering parallel and perpendicular to the electrodes and the role of device thickness.
- Published
- 2009
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