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Monolithically integrated photon-mapping infrared imager
Xingwei Han1,2, Jun Wang3, Lei Guo1
1State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, China.
Nature Communications
|May 26, 2026
Summary
This study introduces a self-driven infrared imager, eliminating external power needs for enhanced portability and flexibility. This novel photon-mapping device offers high resolution and speed for advanced infrared visualization.
Area of Science:
- Photonics
- Materials Science
- Electrical Engineering
Background:
- Conventional infrared imaging systems require external power, limiting their practical applications.
- Existing systems face challenges in portability, flexibility, and large-area scalability.
Purpose of the Study:
- To develop a self-driven, monolithically integrated near-infrared imager.
- To overcome limitations of conventional infrared imaging systems regarding power, resolution, and speed.
Main Methods:
- Vertical integration of photovoltage-generating light-sensing units with a light-emitting unit.
- Cascaded configuration enabling visible emission upon near-infrared excitation via internal carrier transfer.
- Circuit-free architecture for intrinsic flexibility and scalability.
Main Results:
- Achieved a resolution of 5799 ppi and a frame rate of 18.5 kHz.
- Demonstrated self-driven operation without external power supplies.
- Enabled spatial resolution beyond conventional pixel limits and high-speed imaging.
Conclusions:
- The developed imager offers a simplified, energy-efficient approach to infrared visualization.
- The circuit-free, self-driven design enhances portability, flexibility, and scalability.
- This technology paves the way for advanced, high-performance infrared imaging applications.
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