Novel photovoltaic thermoelectric power generation integrated chip and manufacturing method therefor

Abstract

The invention provides a novel photovoltaic thermoelectric power generation integrated chip. The novel photovoltaic thermoelectric power generation integrated chip comprises an insulating thermal insulation substrate / thin film with through holes, a base layer thermoelectric photovoltaic material, N layers of thermoelectric photovoltaic materials, a transparent electrode and an output electrode, wherein the base layer thermoelectric photovoltaic material is arranged on the inner edges of the through holes and the surface of the substrate / thin film and connected with the inner edge parts of the through holes; the N layers of thermoelectric photovoltaic materials are stacked on the part, positioned on the surface of the substrate / thin film, of the base layer thermoelectric photovoltaic material layer by layer, wherein the adjacent two layers of thermoelectric photovoltaic materials are P type or N type semiconductors with seebeck coefficients of similar numerical values and opposite signs, and PN junctions can be formed in the junction; any two groups of materials positioned in different through holes and having opposite PN junction conductive directions form a thermocouple pair; the transparent electrode is connected with the top layer thermoelectric photovoltaic material of the at least one thermocouple pair; and the output electrode is connected with the base layer thermoelectric photovoltaic material of the thermocouple pair connected with the transparent electrode to form a conductive loop.

Description

technical field [0001] The invention relates to the field of semiconductor devices, in particular to a novel photovoltaic thermoelectric power generation integrated chip and a manufacturing method thereof. Background technique [0002] A semiconductor cooler, also called a thermoelectric cooler, is a heat pump. Its advantage is that there are no sliding parts, and it is used in some occasions where the space is limited, the reliability is high, and there is no refrigerant pollution. Using the Peltier effect of semiconductor materials, when direct current passes through a galvanic couple made of two different semiconductor materials in series, heat can be absorbed and released at both ends of the galvanic couple, which can achieve the purpose of cooling; otherwise, there is a temperature difference between the two sides to generate electricity . [0003] The structure of the existing photovoltaic power generation chip is usually composed of many single N-type PN junctions a...

AI Technical Summary

Problems solved by technology

This type of photovoltaic power generation chip has the following disadvantages: first, the manufacturing process is complicated and the cost is high; Due to the influence of its own thermal conductivity, semiconductor materials such as silicon cannot be used to make devices that can perform both solar power generation and thermoelectric power generation

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