Journal
JOURNAL OF MATERIALS RESEARCH
Volume 20, Issue 12, Pages 3224-3233Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/JMR.2005.0399
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Organic solar cells based on conjugated polymer:fullerene blends show nowadays efficiencies above 4%. After briefly presenting the science of bulk-heterojunction solar cells, we report herein a shelf lifetime study performed by encapsulating the cells in a flexible and transparent gas barrier material. This method allows lifetimes as reported for glass encapsulation. Moreover, we propose a new approach to pattern organic solar cells and design large-scale modules. This technique, based on selective Nd:yttrium aluminum garnet (YAG) laser etching, potentially enables low-cost, high-speed roll-to-roll operation.
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