A High-Performance Solution-Processed Organic Photodetector for Near-Infrared Sensing
SCIE
SCOPUS
- Title
- A High-Performance Solution-Processed Organic Photodetector for Near-Infrared Sensing
- Authors
- Huang, J.; 이재원; Vollbrecht, J.; Brus, V.V.; Dixon, A.L.; Cao, D.X.; Zhu, Z.; Du, Z.; Wang, H.; CHO, KIL WON; Bazan, G.C.; Nguyen, T.-Q.
- Date Issued
- 2020-01
- Publisher
- WILEY-V C H VERLAG GMBH
- 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 around 10(12) Jones for NIR spectral region up to 1010 nm, close to that of a commercial Si photodiode. The presented photodetectors can also be integrated in photoplethysmography for real-time heart-rate monitoring, suggesting its potential for practical applications.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/100956
- DOI
- 10.1002/adma.201906027
- ISSN
- 0935-9648
- Article Type
- Article
- Citation
- ADVANCED MATERIALS, vol. 32, no. 1, 2020-01
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- There are no files associated with this item.
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