Top illuminated inverted organic ultraviolet photosensors with single layer graphene electrodes

TitleTop illuminated inverted organic ultraviolet photosensors with single layer graphene electrodes
Publication TypeJournal Article
Year of Publication2012
AuthorsBurkhardt, Martin, Wei Liu, C.G. Shuttle, Kaustav Banerjee, and M.L. Chabinyc
JournalAPPLIED PHYSICS LETTERS
Volume101
Pagination033302
Date PublishedJUL 16
ISSN0003-6951
AbstractInverted, top-illuminated organic photodiodes are demonstrated using transparent electrodes including single layer graphene (SLG) and thin gold or silver with poly(3-hexylthiophene) and 1 -(3-methoxycarboyl)-propyl-1-phenyl-(6,6)C-61 as active layer. The devices are free of both indium-tin-oxide and poly(3,4-ethylenedioxythiophene): poly(styrene-sulfonate). The maximum solar power conversion efficiencies were 0.3% for SLG due to its series resistance and similar to 2% for gold and silver. The organic photodiodes with SLG electrodes had good external quantum efficiency at incident illumination less than 10 mW/cm(2) and better performance than gold and silver at wavelengths below 300 nm making them attractive for ultraviolet photosensors. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4733299]
DOI10.1063/1.4733299