Cascade solar cell based on one-dimensional semiconductor nanomaterials and manufacture method thereof

Abstract

The invention discloses a cascade solar cell based on one-dimensional semiconductor nanomaterials and a manufacture method thereof. The cascade solar cell is characterized in that the one-dimensional semiconductor nanomaterials are taken as light-absorption materials and conductive channels; the two ends of the cascade solar cell are asymmetric metal electrodes, wherein one end is a palladium electrode, and the other end is a scandium or yttrium electrode; the conductive channels between the asymmetric metal electrodes have n-1 virtual electrode couples, wherein the conductive channels are divided into n unit devices which are connected in series, the virtual electrode couples consist of palladium virtual electrodes and scandium or yttrium virtual electrodes which are connected together, the palladium virtual electrodes are located near one side of the scandium or yttrium electrode, and the scandium or yttrium virtual electrodes are located near one side of the palladium electrode. Byintroduction of the virtual electrode couples, the cascade of the cell can be realized without doping, therefore the output photovoltage of the cell is redoubled.

Description

Technical field [0001] The present invention relates to solar cells, in particular to cascaded high-efficiency solar cells constructed based on one-dimensional semiconductor nanomaterials, such as semiconductor carbon nanotubes. Background technique [0002] As a representative of clean energy, solar cells will be an important source of the earth's energy in the future, and are currently a research hotspot for scientists from various countries. Although solar cells based on traditional semiconductor materials have higher efficiency, they are difficult to apply on a larger scale due to higher prices. One-dimensional semiconductor nanomaterials have unique electrical and optical properties and are considered to be the preferred materials for constructing new, high-efficiency, low-cost solar cells. As a representative of one-dimensional semiconductor materials, carbon nanotubes have almost all the excellent properties needed to construct high-efficiency nano-optoelectronic devices,...

AI Technical Summary

Problems solved by technology

It is impractical and uneconomical to connect carbon nanotube solar cells in series through an external circuit

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