The effective mobility-lifetime product, a figure of merit for charge carrier transport in a photovoltaic device, was determined for small-molecule bulk heterojunction organic solar cells by means of a simplified methodology comprising variable light intensity measurements. The recombination losses within the intrinsic active layer, accounted by a recombination current that reduces the generated photocurrent, were correlated to lower mobility-lifetime values that reduce device performance.
Gerling Sarabia, L., Mahato, S., Galindo , S., Voz, C., Puigdollers, J., Alcubilla, R., Asensi, J.M. Straightforward determination of the effective mobility-lifetime products of small molecule organic solar cells. A: Spanish Conference on Electron Devices. "2015 10th Spanish Conference on Electron Devices (CDE 2015): Aranjuez-Madrid, Spain: 11-13 February 2015". Madrid: Institute of Electrical and Electronics Engineers (IEEE), 2015.