Organic Photodetector

Sensitive detection of visible and near-infrared (NIR) light enables many important applications in both research and industry. We have developed several high-performance solution-processed organic photodetectors (OPDs) based on a new ultranarrow-bandgap non-fullerene acceptor, whose photosensing performances are on par with or surpass those of conventional Si detectors. In addition, we have developed highly sensitive photomultiplication (PMT) OPDs, which exhibit broadband spectral activity from the ultraviolet and visible region to the infrared region, low operating voltage, and fast response.

OPD research in the CPOS aims to bridge the knowledge gap between the laboratory-prototype OPD and a real product. We study in depth the thermal stability, photostability, and long-term stability in the OPD, which are extremely crucial for the implementation of this photosensing platform in readout integrated circuits (ROIC) and photonic integrated circuits. On the other hand, we are greatly interested in material design for high-performance active layers and interlayers for ultra-high detectivity OPDs, with large photosensing areas and flexibility.