Upscaling of polymer solar cell fabrication using full roll-to-roll processing

Nanoscale
Frederik C KrebsMikkel Jørgensen

Abstract

Upscaling of the manufacture of polymer solar cells is detailed with emphasis on cost analysis and practical approach. The device modules were prepared using both slot-die coating and screen printing the active layers in the form of stripes that were serially connected. The stripe width was varied and the resultant performance analysed. Wider stripes give access to higher geometric fill factors and lower aperture loss while they also present larger sheet resistive losses. An optimum was found through preparation of serially connected stripes having widths of 9, 13 and 18 mm with nominal geometric fill factors (excluding bus bars) of 50, 67 and 75% respectively. In addition modules with lengths of 6, 10, 20, 22.5 and 25 cm were explored. The devices were prepared by full roll-to-roll solution processing in a web width of 305 mm and roll lengths of up to 200 m. The devices were encapsulated with a barrier material in a full roll-to-roll process using standard adhesives giving the devices excellent stability during storage and operation. The total area of processed polymer solar cell was around 60 m2 per run. The solar cells were characterised using a roll-to-roll system comprising a solar simulator and an IV-curve tracer. After c...Continue Reading

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Citations

Nov 1, 2013·Journal of Advanced Research·M H MakledM K El-Mansy
Sep 16, 2011·ACS Applied Materials & Interfaces·Chunhe YangKeisuke Tajima
Dec 3, 2011·ACS Applied Materials & Interfaces·Achim FischerederGregor Trimmel
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