A High‐Performance Solution‐Processed Organic Photodetector for Near‐Infrared Sensing
University of California, Santa Barbara · Mitsubishi Materials (Japan) · +2 more institutions
Abstract
Abstract Sensitive detection of near‐infrared (NIR) light enables many important applications in both research and industry. Current organic photodetectors suffer from low NIR sensitivity typically due to early absorption cutoff, low responsivity, and/or large dark/noise current under bias. Herein, organic photodetectors based on a novel ultranarrow‐bandgap nonfullerene acceptor, CO1‐4Cl, are presented, showcasing a remarkable responsivity over 0.5 A W −1 in the NIR spectral region (920–960 nm), which is the highest among organic photodiodes. By effectively delaying the onset of the space charge limited current and suppressing the shunt leakage current, the optimized devices show a large specific detectivity…
Citation impact
- FWCI
- 23.12
- Percentile
- 100%
- References
- 44
Authors
12- JHJianfei Huang
University of California, Santa Barbara, Mitsubishi Materials (Japan)
- JLJaewon Lee
University of California, Santa Barbara, Mitsubishi Materials (Japan)
- JVJoachim Vollbrecht
University of California, Santa Barbara
- VVViktor V. Brus
University of California, Santa Barbara
- ALAlana L. Dixon
University of California, Santa Barbara
Topics & keywords
- Materials science
- Photodetector
- Infrared
- Optoelectronics
- Nanotechnology
- Remote sensing
- Optics
- Industry, innovation and infrastructure