Series four-mode nano thermoelectric photoelectric energy harvester

Abstract

A series four-mode nano thermoelectric photoelectric energy harvester of the invention is mainly used for collecting the thermal energy of the RF transceiver component amplifier and the light energy in the environment to supply power to the wireless sensor node. The series four-mode nano thermoelectric photoelectric energy harvester uses a nano thermocouple as a thermoelectric power generation element and has the characteristics of small volume. Compared with the traditional thermoelectric energy harvester, the series four-mode nano thermoelectric photoelectric energy harvester adopts the nanothermocouple which has lower thermal conductivity, so that the thermoelectric conversion efficiency is higher, the collected energy is converted into DC signals through a DC-DC conversion module, finally the DC signals are stored in a rechargeable battery, and electric energy in the rechargeable battery can supply power to the wireless sensing node. The series four-mode nano thermoelectric photoelectric energy harvester is fabricated on an N-type silicon wafer substrate, and includes a photovoltaic cell and a thermoelectric energy harvester which are electrically isolated by a silicon dioxidelayer.

Description

technical field [0001] The invention proposes a series four-mode nanometer thermoelectric photoelectric energy harvester, which belongs to the technical field of micro-electro-mechanical systems (MEMS). Background technique [0002] Most of the wireless systems used in industry use radio frequency connections similar to cellular mobile phones, and use point-to-point or point-to-multipoint data transmission. As an important part of wireless systems, radio frequency transceiver components are widely used in communication and radar systems. The RF transceiver components, especially the power amplifiers, are very inefficient when working, and a considerable part of the energy is dissipated in the form of heat, which not only causes the temperature of the transceiver components to rise, affects the normal operation of the module, but also causes a waste of energy. [0003] The thermoelectric energy harvester with nano-thermocouple as the power generation element has the characte...

AI Technical Summary

Problems solved by technology

The RF transceiver components, especially the power amplifiers, are very inefficient when working, and a considerable part of the energy is dissipated in the form of heat, which not only causes the temperature of the transceiver components to rise, affects the normal operation of the module, but also causes a waste of energy

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