Low Band Gap Polymers for Roll-to-Roll Coated Polymer Solar Cells

Publication: Research - peer-reviewJournal article – Annual report year: 2010

NullPointerException

View graph of relations

We present the synthesis of a low band gap copolymer based on dithienothiophene and dialkoxybenzothiadiazole (poly(dithienothiophene-co-dialkoxybenzothiadiazole), PDTTDABT). The optical properties of the polymer showed a band gap of 1.6 eV and a sky-blue color in solid films. The polymer was explored in roll-to-roll coating experiments and was optimized with respect to the manufacturing process and mixing ratio with [60]PCBM through a series of experiments with variation of the composition in steps of 1% w/w of respectively PDTTDABT and [60]PCBM and a relatively broad optimimum was found around a 1:2 mixing ratio. Roll-to-roll coated polymer solar cell devices were prepared under ambient conditions employing solution processing in all steps including the metallic back electrode that was printed as a grid giving semitransparent solar cell devices. Solar cell modules comprising 16 serially connected cells were prepared with a total module active area of 96 cm2. The devices were tested for operational stability under simulated sunlight (AM1.5G) and natural sunlight, and the photochemical stability of the polymer was examined using a combination of UV−vis and IR spectroscopy.
Original languageEnglish
JournalMacromolecules
Publication date2010
Volume43
Journal number19
Pages8115-8120
ISSN0024-9297
DOIs
StatePublished

Bibliographical note

This work was supported by the Danish
Research Council for Technology and Production (FTP)
(Reference No. 274-08-0057).

CitationsWeb of Science® Times Cited: 85

Keywords

  • Polymer solar cells, Solar energy
Download as:
Download as PDF
Select render style:
APAAuthorCBEHarvardMLAStandardVancouverShortLong
PDF
Download as HTML
Select render style:
APAAuthorCBEHarvardMLAStandardVancouverShortLong
HTML
Download as Word
Select render style:
APAAuthorCBEHarvardMLAStandardVancouverShortLong
Word

ID: 4699763