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Organic solar cells on indium tin oxide and aluminum doped zinc oxide anodes

: Schulze, K.; Maennig, B.; Leo, K.; Tomita, Y.; May, C.; Hüpkes, J.


Applied Physics Letters 91 (2007), No.7, Art. 073521, 3 pp.
ISSN: 0003-6951
ISSN: 1077-3118
Journal Article
Fraunhofer IPMS ()

The authors compare organic solar cells using two different transparent conductive oxides as anode: indium tin oxide (ITO) and three kinds of aluminum doped zinc oxide (ZAO). These anodes with different work functions are used for small molecule photovoltaic devices based on an oligothiophene derivative as donor and fullerene C-60 as acceptor molecule. It turns out that cells on ITO and ZAO have virtually identical properties. In particular, the authors demonstrate that the work function of the anode does not influence the V-oc of the photovoltaic device due to the use of doped transport layers.