High‐Efficiency Inverted Polymer Photovoltaics via Spectrally Tuned Absorption Enhancement

The trade-off between light absorption and exciton diffusion length must be addressed before widespread deployment of organic photovoltaics can be realized. Optical transfer matrix modeling is used in inverted, high-efficiency organic photovoltaics, employing a poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl] [3-fluoro-2-[(2-ethyl­hexyl)carbonyl] thieno[3,4-b]thiophene­diyl]] (PTB7):[6,6]-phenyl C71 butyric acid methyl-ester (PC71BM) active layer to spectrally sculpt absorption enhancement by tuning the layer thicknesses of both the photoactive layer and the ZnO interfacial layer (IFL). As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.