Gas Dielectric Transistor of CuPc Single Crystalline Nanowire for SO₂ Detection Down to Sub‐ppm Levels at Room Temperature

Abstract

A room-temperature highly-sensitive SO2 sensor with fast response and complete recovery is constructed based on gas dielectric field-effect transistor (FET) of CuPc single crystalline nanowire. The exposed conductive channel by gas dielectric is responsible for the high sensitivity to SO2 and the adsorption of the SO2 molecules dramatically enhances the field-effect mobility. These results not only open up new opportunities to develop new SO2 sensors, but also provide an efficient way to improve the performance of organic FETs. 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.