Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Publication date: 28th March 2016
Spatial uniformity is critical when fabricating solar cells with the highest achievable output. The study presented here focuses on using light-beam induced photocurrent techniques (LBIC) to explore and enhance our understanding of perovskite solar cells (PSC’s). Perovskite research and development has boomed in the last 5 years showing superior performance when compared to other next generation devices. The technique we have previously developed for high resolution current mapping of OPV’s and DSSC’s has been enhanced and is now applicable to the study of spatial uniformity of PSC’s.
Similar to our previous system1,2 we use poly-wavelength excitation (405 nm, 520 nm and 635 nm) and a precisely controlled X-Y stage spot so that a resolution of
Our understanding of spatial uniformity has greatly impacted our approach to device design and fabrication. This has led to further improvements in efficiency and the ability to fabricate larger area devices with a reduced loss in performance. In this study we will present LBIC data for perovskite solar cells highlighting how the effect of spatial uniformity at the micron level can impact overall device performance.
References
1. T. W. Jones, K. Feron, K. F. Anderson, B. Duck and G. J. Wilson, “An applied light-beam induced current study of dye-sensitised solar cells: photocurrent uniformity mapping and true photoactive area evaluation”, J. Appl. Phys. 116, 043104 (2014).
2. K. Feron, T. J. Nagle, L. J. Rozanski, B. B. Gong, C. J. Fell, “Spatially resolved photocurrent measurements of organic solar cells: tracking water ingress at edges and pinholes.”, Solar Energy Materials and Solar Cells. 109, 169 (2013).
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