Open circuit voltage of organic photovoltaic cells using C60 as acceptor: variation with the donor★
Institut des Matériaux Jean Rouxel (IMN), CNRS, UMR 6502, Université de Nantes, 2 Rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3, France
2 Equipe de Recherche en Couches Minces et Nanomatériaux (ERCMN), Faculté des Sciences et Techniques, Université Abdelmalek Essadi, Tanger, Maroc
3 MOLTECH-Anjou, CNRS, UMR 6200, Université de Nantes, 2 Rue de la Houssinière, BP 92208, Nantes 44000, France
* e-mail: Zouhair.email@example.com
Received in final form: 4 April 2019
Accepted: 15 April 2019
Published online: 10 June 2019
The open circuit voltage (Voc) of organic photovoltaic cells (OPVs) is an important parameter in terms of OPV performance. In the present work, we check that its value depends on the energy difference between the Lowest Unoccupied Molecular Orbital of the electron acceptor (LUMOA) and the Highest Occupied Molecular Orbital of the donor (HOMOD). The electron acceptor is the fullerene, while the electron acceptors are used as parameter. The results show that Voc increases with the value of Δ(LUMOA–HOMOD). However, for some molecules, this increase is not linear, which shows that other parameters are also determinant.
© Z. El Jouad et al., EDP Sciences, 2019
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