Photoswitches and Phototransistors from Organic Single‐Crystalline Sub‐micro/nanometer Ribbons

Ribbons of an air-stable, n-type organic single-crystal semiconductor, F16CuPc, are used to study photoswitches and phototransistors. High-quality, reversibly switching, fast photoswitches together with strongly photodependent field-effect phototransistors (see figure) of F16CuPc are made. The high light sensitivity and large on/off ratio of the phototransistors realize a new way to detect light and magnify signals in a single organic device, indicating a future in low-cost, ultrahigh density, organic photoelectric integration. Supporting information for this article is available on the WWW under http: //www. wiley-vch. de/contents/jc₂089/2007/c0208ₛ. 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.