UP-scaling of inverted small molecule based organic solar cells

Bhushan Ramesh Patil, Morten Madsen

Research output: Contribution to conference without publisher/journalPosterResearch

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Organic solar cells (OSC), in spite of being a promising technology, still face challenges regarding large-scale fabrication. Although efficiencies of up to 12 % has been reached for small molecule OSC, their performance, both in terms of device efficiency and stability, is significantly reduced during up-scaling processes. The work presented here is focused on an approach towards up-scaling of small molecule based OSC with inverted device configuration. Bilayer OSC from Tetraphenyldibenzoperiflanthene (DBP) and Fullerenes (C70), as electron donor and acceptor respectively, with cell area ranging on a scale from a few mm2 to cm2, are produced by organic molecular beam deposition (OMBD). All the layers in the device are fabricated from a highly sophisticated vacuum cluster deposition system that includes electrode, interfacial layer and organic layer deposition in one high-vacuum deposition system. The work includes investigation of morphology and uniformity of the layers from atomic force microscopy (AFM) and optical spectroscopy investigations.
Original languageEnglish
Publication date2015
Number of pages1
Publication statusPublished - 2015
Event7th School on Organic Electronics: Summer School on Organic Electronics From Semiconductor to Biomolecular Interfaces - Lake Como School of Advanced Studies, Como, Italy
Duration: 14. Sep 201518. Sep 2015


Other7th School on Organic Electronics
LocationLake Como School of Advanced Studies
Internet address


  • organic solar cells
  • Up-scaling
  • Small molecules


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