Abstract
AbstractOrganic semiconductor molecule is a highly promising material system for next‐generation photodetectors due to its tunable absorption, inherent flexibility, and solution and low‐temperature processibility. However, developing organic semiconductor materials for visible‐blind ultraviolet (UV) photodetectors with broad spectral response remains a big challenge. Herein, a novel triphenylamine‐functionalized donor–acceptor–donor (D–A–D) type isoindigo derivative, (E)‐6,6'‐bis(4‐(diphenylamino)phenyl)‐[3,3'‐biindolinylidene]‐2,2′‐dione (BDPBD), is successfully synthesized. The ultrasensitive visible‐blind UV single crystal organic phototransistors (SC‐OPTs) based on the BDPBD micro/nanometer‐sized single crystal using simple solution process for the detection of ultraviolet‐A (UV‐A), ultraviolet‐B (UV‐B), and ultraviolet‐C (UV‐C) UV light showed a highest hole mobility of 0.12 cm2 V−1 s−1, millisecond‐level response time (20 ms), and ultrahigh photoresponsivity, detectivity, and external quantum efficiency up to 2.62 × 106 A W−1, 1.47 × 1017 Jones, and 3.51 × 108%, respectively.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
