All polymer photovoltaics: From small inverted devices to large roll-to-roll coated and printed solar cells

Yao Liu, Thue Trofod Larsen-Olsen, Xingang Zhao, Birgitta Andreasen, Roar R. Søndergaard, Martin Helgesen, Kion Norrman, Mikkel Jørgensen, Frederik C Krebs, Xiaowei Zhan

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Inverted all polymer solar cells based on a blend of a perylene diimide based polymer acceptor and a dithienosilole based polymer donor were fabricated from small area devices to roll-to-roll (R2R) coated and printed large area modules. The device performance was successfully optimized by using solvent additive to tune the phase separation. By adding 2% chloronaphthalene as solvent additive for small area (0.25 cm2) devices, a power conversion efficiency (PCE) up to 0.63% was achieved for inverted geometry, higher than that (0.39%) of conventional geometry. This polymer blend showed excellent solution processibility and R2R coated and printed large area (4.2 cm 2) solar cells exhibited a PCE of 0.20%. © 2013 Elsevier B.V.
Original languageEnglish
JournalSolar Energy Materials & Solar Cells
Volume112
Pages (from-to)157-162
ISSN0927-0248
DOIs
Publication statusPublished - 2013

Keywords

  • Conversion efficiency
  • Geometry
  • Phase separation
  • Solar cells
  • Plastic coatings
  • All-polymer solar cells
  • Inverted geometry
  • Roll-to-roll process

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