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Bioinspired Compound Eyes for Diffused Light-Harvesting Application.
Xinxue Wu1, Chaolong Fang1, Wangdong Xu1
1Wenzhou Key Laboratory of Micro-nano Optoelectronic Devices, College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China.
ACS Applied Materials & Interfaces
|January 11, 2022
Summary
Inspired by arthropod eyes, a novel curved artificial-compound-eye (cACE) photodetector enhances diffused light harvesting. This biomimetic design significantly boosts photocurrent, paving the way for advanced light sensors.
Area of Science:
- Optoelectronics
- Biomimetics
- Materials Science
Background:
- Arthropod compound eyes offer exceptional light-harvesting capabilities, crucial for survival in low-light conditions.
- Existing artificial photodetectors often struggle with diffused light and directional dependence.
Purpose of the Study:
- To propose and fabricate a curved artificial-compound-eye (cACE) photodetector inspired by natural compound eyes.
- To investigate the light-harvesting performance of the cACE photodetector for diffused light sensing.
Main Methods:
- Fabrication of cACE using template deformation of a planar artificial-compound-eye (pACE).
- Integration of cACE onto a silicon-based photodetector.
- Systematic investigation of photodetector performance under varying luminances.
Main Results:
- The cACE photodetector exhibits reduced surface reflection and improved light-harvesting efficiency.
- Output photocurrent of the cACE photodetector was 1.395x and 1.29x higher than bare and pACE photodetectors, respectively.
- The cACE design demonstrates enhanced performance for diffused light detection.
Conclusions:
- The cACE photodetector design significantly improves light-harvesting ability and photocurrent.
- This biomimetic approach offers a promising pathway for developing high-performance photodetectors for luminance sensing.
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