Significant enhancement of responsivity of organic photodetectors upon molecular engineering

Abstract

Upon incorporating S⋯O noncovalent conformational locks and side chain engineering, the optical absorption and blend film morphology of molecular acceptors are effectively tuned, resulting in an enhanced photocurrent and thus a higher responsivity (from 70.5 mA W−1 to 291.3 mA W−1) for P3HT-based OPDs.