Plastic Near‐Infrared Photodetectors Utilizing Low Band Gap Polymer

A new type of plastic near-infrared photodetector utilizing low band gap polymer (see figure) is presented. When composing the detector in a donor-acceptor type energy band structure and operating it in the reverse bias condition (less than 5 V), the photodetector shows respectable performance: external quantum efficiency exceeding 38 %, bandwidth of 4 MHz and the noise equivalent power of 3. 85 × 10–12 W Hz–1/2 at 850 nm. Supporting information for this article is available on the WWW under http: //www. wiley-vch. de/contents/jc₂089/2007/c2670ₛ. pdf or from the author. 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.