Extremely Low Dark Current, High Responsivity, All‐Polymer Photodetectors with Spectral Response from 300 nm to 1000 nm

A low-bandgap polymer-based photodetector exhibiting a calculated specific detectivity greater than 1.0 × 1013 cm Hz0.5 W−1 at wavelengths from 350 to 870 nm is enabled by a cross-linkable buffer layer. The device shows an extremely low dark current density of 0.64 nA cm−2 and high external quantum efficiency of 27.7% at a wavelength of 850 nm. 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.