Roll-to-roll fabrication of bulk heterojunction plastic solar cells using the reverse gravure coating technique

Daniel Tobjork*, Harri Aarnio, Tapio Mäkelä, Ronald Österbacka

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedingConference contributionScientificpeer-review

9 Citations (Scopus)


The roll-to-roll reverse gravure (RG) coating technique was used to produce thin homogeneous films (∼100 nm) for organic bulk heterojunction solar cells. The conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and the active layer regioregular poly(3-hexylthiophene- 2,5-diyl):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) were successfully subsequently RG coated on an ITO covered plastic substrate in ambient air. Working solar cells were achieved after annealing and thermal evaporation of the top contact. The AM1.5 power conversion efficiency (PCE) of the RG coated organic solar cells was determined to 0.74% (at 100 mW/cm 2). This was very similar to the results of a reference device that was spin coated on a glass substrate in a nitrogen glove box.

Original languageEnglish
Title of host publicationConjugated Organic Materials-Synthesis, Structure, Device and Applications
PublisherMaterials Research Society
Number of pages6
ISBN (Print)9781605608440
Publication statusPublished - 2008
MoE publication typeA4 Article in a conference publication
Event2008 MRS Spring Meeting - San Francisco, CA, United States
Duration: 24 Mar 200828 Mar 2008

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Conference2008 MRS Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA


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