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Crystals 2019, 9(2), 80; https://doi.org/10.3390/cryst9020080

A Lumped-Parameter Equivalent Circuit Modeling for S-Shaped IV Kinks of Organic Solar Cells

College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
These two authors contributed equally to this work.
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Authors to whom correspondence should be addressed.
Received: 4 December 2018 / Revised: 27 December 2018 / Accepted: 2 January 2019 / Published: 2 February 2019
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Abstract

We propose an improved lumped-parameter equivalent circuit model to describe S-shaped IV kinks observed from organic solar cells. Firstly, to predict the S-shaped IV kinks accurately in both the first and fourth quadrants, a shunt resistor in parallel with extraction diode is added to our previous model. Secondly, based on the Newton–Raphson method, we derive a solution to our improved circuit. Thirdly, our solution is verified by the method of least squares and experiments. Finally, compared with our previous work, the improved circuit has higher accuracy in demonstrating S-shaped IV kinks in the first and fourth quadrants. Such an improved model is suitable for circuit simulations of organic solar cells. View Full-Text
Keywords: lumped-parameter equivalent circuit model; organic solar cells; S-shaped IV kinks lumped-parameter equivalent circuit model; organic solar cells; S-shaped IV kinks
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Wei, T.; Xu, C.; Lin, W.; Huang, G.; Yu, F. A Lumped-Parameter Equivalent Circuit Modeling for S-Shaped IV Kinks of Organic Solar Cells. Crystals 2019, 9, 80.

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