Comparison of inorganic electron transport layers in fully roll-to-roll coated/printed organic photovoltaics in normal geometry

Authors

Thomas R. Andersen, University of Newcastle
Furqan Almyahi, University of Newcastle
Nathan Cooling, University of Newcastle
Daniel Elkington, University of Newcastle
Lauren Wiggins, University of Newcastle
Adam Fahy, University of Newcastle
Krishna Feron, University of Newcastle
Ben Vaughan, University of Newcastle
Matthew J. Griffith, University of NewcastleFollow
Attila J. Mozer, University of WollongongFollow
Chaiyuth Sae-kung, University of WollongongFollow
Gordon G. Wallace, University of WollongongFollow
Warwick J. Belcher, University of Newcastle
Paul C. Dastoor, University of Newcastle

RIS ID

110321

Publication Details

Andersen, T. R., Almyahi, F., Cooling, N. A., Elkington, D., Wiggins, L., Fahy, A., Feron, K., Vaughan, B., Griffith, M. J., Mozer, A. J., Sae-kung, C., Wallace, G. G., Belcher, W. J. & Dastoor, P. C. (2016). Comparison of inorganic electron transport layers in fully roll-to-roll coated/printed organic photovoltaics in normal geometry. Journal of Materials Chemistry A, 4 (41), 15986-15996.

Abstract

We investigate the suitability of four different inorganic materials (chromium oxide (CrOX), titanium oxide (TiOX), aluminium doped zinc oxide (AZO) and zinc oxide (ZnO)) as electrode transport layers in fully roll-to-roll (R2R) fabricated P3HT:ICxA organic solar cells. CrOX and TiOX were found to be unsuitable, as the CrOX devices did not exhibit rectifying behaviour while the TiOX devices did not withstand the annealing conditions. Of the last two ETLs, ZnO showed by far the most promise with devices demonstrating an average efficiency of 2.2%, which is the highest reported value for R2R devices in normal geometry, and a significantly extended lifetime compared with AZO devices under ISOS-L-2 conditions.