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An improved dynamic Monte Carlo model coupled with Poisson equation to simulate the performance of organic photovoltaic devices.
- Source :
-
Journal of Chemical Physics . 3/28/2011, Vol. 134 Issue 12, p124102. 7p. 2 Diagrams, 1 Chart, 3 Graphs. - Publication Year :
- 2011
-
Abstract
- We describe a new dynamic Monte Carlo model to simulate the operation of a polymer-blend solar cell; this model provides major improvements with respect to the one we developed earlier [J. Phys. Chem. B 114, 36 (2010)] by incorporating the Poisson equation and a charge thermoactivation mechanism. The advantage of the present approach is its capacity to deal with a nonuniform electrostatic potential that dynamically depends on the charge distribution. In this way, the unbalance in electron and hole mobilities and the space-charge induced potential distribution can be treated explicitly. Simulations reproduce well the experimental I-V curve in the dark and the open-circuit voltage under illumination of a polymer-blend solar cell. The dependence of the photovoltaic performance on the difference in electron and hole mobilities is discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 134
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 59744236
- Full Text :
- https://doi.org/10.1063/1.3569130