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Photovoltaic energy converter as a chipscale high efficiency power source for implanted active microelectronic
N-J Hwang1, W R Patterson, Y-K Song
1Division of Engineering, Brown University, Providence, RI 02912, USA.
Summary
We developed a microscale photovoltaic energy converter to power microelectronic chips. This device delivers 3V and over 10 mW, with optical fiber coupling for remote power in implantable systems.
Area of Science:
- Electrical Engineering
- Materials Science
- Biomedical Engineering
Background:
- Microelectronic systems, especially implantable ones, require efficient and remote power sources.
- Traditional power delivery methods face limitations in miniaturized and implanted environments.
Purpose of the Study:
- To design and develop a microscale photovoltaic energy converter for powering CMOS-based microelectronic chips.
- To achieve specific power and voltage outputs suitable for implantable devices.
- To enable remote power delivery via optical fiber coupling.
Main Methods:
- Design and fabrication of a prototype microscale photovoltaic energy converter.
- Integration of optical fiber coupling for remote power transmission.
- Testing and characterization of the device's electrical performance.
Main Results:
- Successful development of a microscale photovoltaic energy converter.
- Achieved power delivery exceeding 10 mW.
- Delivered voltages on the order of 3V.
- Demonstrated feasibility of optical fiber coupling for remote power.
Conclusions:
- The developed microscale photovoltaic energy converter is a viable solution for powering CMOS microelectronics.
- The device's design facilitates remote power delivery, crucial for implantable applications.
- This technology advances the potential for self-powered, miniaturized electronic systems.

