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Published on: June 23, 2018
Day-Night Visual Perception Enabled by Vis-NIR Broadband Adaptive Transistors
Zixuan Liu1,2, Weijie Wang1, Yongjie Chen3
1Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
Advanced Materials (Deerfield Beach, Fla.)
|July 28, 2026
Summary
Researchers developed a Vis-NIR broadband organic active adaptation transistor (VN-OAAT) for day-night machine vision. This device enables accurate all-day visual sensing across a wide light spectrum, crucial for autonomous driving and security.
Area of Science:
- Materials Science
- Optoelectronics
- Semiconductor Devices
Background:
- Robust day-night vision is critical for autonomous driving and security systems.
- Existing active perception systems are limited to the visible spectrum.
Purpose of the Study:
- To develop a Vis-NIR broadband organic active adaptation transistor (VN-OAAT).
- To enable simultaneous spectral broadening and tunable charge trapping.
- To achieve light-intensity-dependent photoresponse for adaptive vision.
Main Methods:
- Incorporation of a dielectric embedded with ternary bulk-heterojunction.
- Precise donor-acceptor compositional engineering.
- Device characterization and imaging experiments with simulations.
Main Results:
- Broadened spectral response from 400-1200 nm.
- Achieved light-intensity-dependent photoresponse spanning four orders of magnitude.
- Demonstrated over 96% recognition accuracy for all-day vision.
Conclusions:
- The ternary-heterojunction strategy overcomes limitations in NIR semiconductor integration with OAAT.
- Established an efficient platform for broadband adaptive sensing in day-night machine vision.
- VN-OAAT enables robust and accurate vision across diverse lighting conditions.
Keywords:
adaptation transistorsbroadband spectral responseday–night visual perceptionternary bulk‐heterojunctionMore Related Videos
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