期刊
JOURNAL OF CHEMICAL PHYSICS
卷 134, 期 12, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3569130
关键词
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资金
- National Science Foundation of China [20920102031]
- Office of Naval Research
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. (C) 2011 American Institute of Physics. [doi:10.1063/1.3569130]
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