Medium area, flexible single and tandem junction solar cells based on roll coated semi-random copolymers

Thomas Rieks Andersen, Henrik Friis Dam, Beate Burkhart, Dechan Angmo, Michael Corazza, Barry C. Thompson, Frederik C Krebs

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We report on medium area (1 cm2) slot-die coated organic photovoltaic devices (OPVs) of a recently developed semi-random copolymer of poly-3-hexylthiophene and diketopyrrolopyrrole (P3HTT–DPP- 10%) mixed with phenyl-C61-butyric acid methyl ester ([60]PCBM). The devices were prepared using a compact laboratory roll-coater using only slot-die coating and flexographic printing under ambient conditions on a flexible ITO-free substrate. In order to overcome a low JSC and FF obtained for single junction devices, devices were also prepared in a tandem geometry making it possible to employ thinner junction films. Power conversion efficiencies of up to 1.36% and 1.31% were achieved for the tandem and single junction geometries, respectively.
Original languageEnglish
JournalJournal of Materials Chemistry C
Volume2
Pages (from-to)9412–9415
ISSN2050-7526
DOIs
Publication statusPublished - 2014

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