Solution‐Processed Ion‐Free Organic Ratchets with Asymmetric Contacts

• DOI: 10.1002/adma.201804794
• Publication Date: 2018-10-28T21:01:40Z
• Authors: Jianfei Huang; Akchheta Karki; Viktor V. Brus; Yuanyuan Hu; Hung Phan; Alexander T. Lill; Ming Wang; Guillermo C. Bazan; Thuc‐Quyen Nguyen
• Keywords: Organic semiconductor

Abstract Ion‐free organic ratchets with asymmetric injecting contacts (AICs) are fabricated using solution‐processable semiconductors. Scanning Kelvin probe microscopy analysis reveals that the rectifying function is achieved via “charge pump” mechanism. Electrical characterizations show device can readily operate under industrial standard radio frequency and its high‐frequency performance may be enhanced through further material/device engineering. The built‐in feature exempts devices from complicated material design, processing, decay associated use of ion/semiconductor blends in ionic‐organic ratchets. Thus, AIC deliver a persisting ratchet effect have excellent compatibility toward