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ACS Appl Mater Interfaces. 2010 Mar;2(3):877-87. doi: 10.1021/am900858x.

Using light-induced thermocleavage in a roll-to-roll process for polymer solar cells.

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1
Risø National Laboratory for Sustainable Energy, Technical University of Denmark, Frederiksborgvej 399, DK-4000 Roskilde, Denmark. frkr@risoe.dtu.dk

Abstract

We report on the use of intense visible light with a narrow spectral distribution matched to the region where the conjugated polymer material absorbs to selectively heat the active material and induce thermocleavage. We show a full roll-to-roll process, leading to complete large-area polymer solar cell modules using light-induced thermocleavage. The process employs full solution processing in air for all five layers in the device and does not employ indium-tin oxide or vacuum processing. The process steps were carefully analyzed using X-ray photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry, attenuated total reflectance infrared, and transmission/reflection UV-vis techniques.

PMID:
20356294
DOI:
10.1021/am900858x
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