Multi-mode photodetectors and methods of fabricating the same
Overview
The invention relates to bias-switchable photodetectors with dual-mode detection in NIR and visible light ranges. The PD has absorber/spacer components in its active layer, allowing it to generate photocurrent in response to IR or visible light under reverse or forward bias. This offers applications in various fields like environmental monitoring, bio, medical, agriculture, automotive, fishery, food, wellness, and security imaging in distinct bands.
Commercialisation opportunities
technology licensing agreement
Problem addressed
A dual-mode PD that has a unique feature of high IR light response, operated under a reverse bias, and visible light response, operated under a forward bias, taking advantage of photo-multiplication effect.
Innovation
- Dual-mode PD with tunable responses over a broad spectral range from visible to IR light
- Innovative non-invasive detection
Key impact
- A dual-mode PD that has a unique feature of high IR light response, operated under a reverse bias, and visible light response, operated under a forward bias, taking advantage of photo-multiplication effect.
- The unique dual-mode PD with tunable responses over a broad spectral range from visible to IR light
Award
- Gold Medal at the “2023 Geneva International Exhibition of Inventions”
Application
- Fruit Quality Detector
- Applications in environmental pollution, bio, medical, agricultural, automotive, fishery, food, wellness and security monitoring, detection and imaging in two or different or multiple distinct bands.
Patent
- US Patent No.:US 11,329,239
- China Patent No.: ZL 201910951975.5
- Japanese Patent No.: JP 6995814
Hong Kong Baptist University (HKBU)
Aspiring to be a leading, research-led, liberal arts University in Asia, Hong Kong Baptist University is committed to conducting world-leading investigations that extends the frontiers of knowledge, tackles global challenges and benefits the community at home and abroad.
Pursuing research excellence is one of the priorities of the University’s Institutional Strategic Plan 2018-2028. The University keeps enhancing its capacity and strength to produce world-class research with an aim to bring significant impact to the society.
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