Model of Organic Solar Cell Photocurrent Including the Effect of Charge Accumulation at Interfaces and Non-Uniform Carrier Generation

IEEE Journal of the Electron Devices Society

Suren A. Gevorgyan¹  Frederik C. Krebs¹  Michael Corazza¹  Nicola Wrachien²  Lorenzo Torto²  Antonio Rizzo²  Andrea Cester² 

[1] Risø National Laboratory for Sustainable Energy, Technical University of Denmark, Roskilde, Denmark;University of Padua, Padua, Italy;

关键词: Organic solar cells;    analytical model;   

DOI  :  10.1109/JEDS.2016.2602563

来源: DOAJ

【 摘 要 】

We developed an improved model to fit the photocurrent density versus voltage in organic solar cells. The model has been validated by fitting data from P3HT:PCBM solar cells. Our model quantitatively accounts for the band bending near the electrodes caused by charge accumulation in the active layer. The model explains the position of the built-in and the zero-field voltage, the value of the internal electric field, the impact of electrode materials, and the appearance of multiple inflections. In addition, the model can be used to monitor the cell condition during accelerated lifetests.

【 授权许可】

Unknown