Ultrahigh Gain, Low Noise, Ultraviolet Photodetectors with Highly Aligned Organic Crystals

An organic phototransistor with an ultrahigh gain of 1.1 × 107 is demonstrated, which employs a highly aligned dioctylbenzothienobenzothiophene (C8-BTBT) polycrystalline film as the photoactive layer. This high photodetecting gain reaches the parity of photomultiplier tubes but with tens of times smaller driving voltage. This low noise detector has a noise equivalent power of 14 pW cm−2. 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.