Avoiding Photoinduced Shunts in Organic Solar Cells by the Use of Tin Oxide (SnO_x) as Electron Extraction Material Instead of ZnO

Abstract

Organic solar cells using zinc oxide (ZnO) based electron extraction layers (EELs) show a lowered shunt resistance along with a decay of the filling factor and open circuit voltage upon UV illumination, due to a loss of electron selectivity of the EEL. This issue is overcome by tin oxide (SnOx) as EEL, with a surface electronic structure different from ZnO. 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.