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Updated: May 2, 2026
Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes
Published on: November 16, 2018
Non-planar A-D-A'-D-A type acceptors enabling EQEs over 5000% in near-infrared organic photomultiplying
Jiawen Cong1, Hongfei Qu2, Jun Zhang1
1Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, Shenzhen Key Laboratory of New Information Display and Storage Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China. zhhuiluo@szu.edu.cn.
Abstract:
We report two A-D-A'-D-A type non-fullerene acceptors, CS-3 and CS-4, with twisted backbones and low crystallinity. Despite these structural drawbacks, CS-3-based photomultiplying organic photodetectors exhibit an external quantum efficiency (EQE) of 5600% at 800 nm and detectivity exceeding 1013 Jones. This work highlights the potential of non-planar molecular designs for achieving high-gain, broadband, near-infrared detection beyond conventional structure-performance expectations.
