Wireless, optically-powered optoelectronic sensors
AssigneeCornell University
InventorsAlejandro J. Cortese, Alyosha C. Molnar, Paul L. McEuen, Sunwoo Lee
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Abstract
The technology disclosed in this patent document can be used to construct devices with opto-electronic circuitry for sensing and identification applications, to provide untethered devices for deployment in living objects and other applications, and to provide fabrication techniques for making such devices for commercial production. As illustrated by specific examples disclosed herein, the disclosed technology can be implemented to provide fabrication methods, substrates, and devices that enable wireless, inorganic cell-scaled sensor and identification systems that are optically-powered and optically-readout.
Claims17
A device with opto-electronic circuitry, comprising:
- a substrate;
- a photovoltaic module on the substrate and structured to convert incident light into electricity;
- an identification module on the substrate and coupled to receive power from the electricity generated by the photovoltaic module and to generate an electrical identification signal indicative of a unique identity of the device that uniquely identifies the device from other devices;
- a light-emitting module on the substrate and coupled to receive power from the electricity generated by the photovoltaic module and to receive the electrical identification signal from the identification module and operable to produce output light that is modulated to carry the electrical identification signal to wirelessly and optically transmit the electrical identification signal out of the device;
- and
- electrical interconnects lithographically formed on the substrate and configured to electrically connect the light-emitting module, the photovoltaic module and the identification module, the electrical interconnects structured to have a dimension at or below 40 microns and a pitch below 40 microns between two adjacent electrical interconnects.
A device with opto-electronic circuitry, comprising:
- a substrate;
- a photovoltaic module on the substrate and structured to convert input light into electricity;
- a sensor module on the substrate and coupled to receive power from the electricity generated by the photovoltaic module, the sensor module structured to include a sensing element that is responsive to a target substance to produce a response, wherein the sensor module is further configured to generate, based on the response from the sensing element, an electrical sensor signal indicative of a property of the target substance;
- a light-emitting module on the substrate and coupled to receive power from the electricity generated by the photovoltaic module and to receive the electrical sensor signal from the sensor module, the light-emitting module structured to produce output light that is modulated to carry the electrical sensor signal to wirelessly and optically transmit the electrical sensor signal out of the device;
- and
- electrical interconnects lithographically formed on the substrate and configured to electrically connect the light-emitting module, the photovoltaic module and the sensor module, wherein the electrical interconnects are structured to have a dimension at or below 40 microns and a pitch below 40 microns between two adjacent electrical interconnects.
Dependencies are inferred from the claim text.