@inproceedings{P109.501, author={Minnaert, Ben and Veelaert, Peter}, title={The influence of absorbing donors and acceptors on the efficiency for a stacked and a monolithic organic tandem solar cell}, booktitle={EU PVSEC Proceedings}, year={2009}, pages={627-630}, publisher={WIP Wirtschaft und Infrastruktur GmbH & Co Planungs KG}, address={München, Germany}, }