Predictable behavior of organic photovoltaic cells by Kelvin probe force microscopy

Aude L. Lereu (1) , Roche R. (2) , Philippe Dumas (2)

1 CONCEPT - CONCEPT
2 CINaM - Centre Interdisciplinaire de Nanoscience de Marseille

We investigate a new way to access to the open circuit voltage (Voc) of organic photovoltaic (OPV) cells: the Kelvin probe force microscopy (KPFM). KPFM is a powerful technique, allowing mapping the surface potential above any surface together with the topography of the surface. We first show that KPFM measurements coincide with the direct measurements of Voc. We then demonstrate KPFM as a valuable technique to predict the quality, and particularly the durability and aging, of OPV cells.

Mots clés: Kelvin probe microscopy; photovoltaics

Domaines: Matériaux; Energie électrique

Aude L. Lereu, Roche R., Philippe Dumas. Predictable behavior of organic photovoltaic cells by Kelvin probe force microscopy. Nanomeeting 2013, May 2013, Minsk, Belarus. ⟨10.1142/9789814460187_0118⟩. ⟨hal-01276468⟩