Solar cell and manufacturing method thereof

Abstract

The invention discloses a solar cell. The silicon-based solar cell is composed of a silicon-based solar panel, transparent glass covering the silicon-based solar panel and a light conversion glue layer between the silicon-based solar panel and the transparent glass, wherein the light conversion glue layer is an ethyl vinyl acetate transparent polymer filled with a red fluorescent compound and NaYF4:Yb3+, Er3+ nanophosphors; and the red fluorescent compound is YVO4:Eu3+, Sr2+@YVO4:Eu3+, Bi3+ or YVO4:Eu3+, Sr2+@YVO4:Eu3+, and Bi3+@Ag@SiO2 red fluorescent compound. The invention also discloses a silicon-based solar cell manufacturing method. The solar cell adopts the nanoscale red fluorescent compound and the NaYF4:Yb3+, Er3+ nanophosphors, and possibilities are created for realizing high-efficiency silicon-based solar cells. The invention also provides a solar cell manufacturing method.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a solar cell and a preparation method thereof. Background technique [0002] The design of silicon-based solar cells began in the mid-20th century, more specifically in the 1960s, when the near-Earth space was being actively exploited. Active advocates of silicon-based solar cells are scientists and engineers in the United States, Soviet Russia, and Japan. These initial research results are cataloged in monographs (please refer to "Semiconductor Radiative Energy Conversion", page 408, Moscow, Foreign Literature Publishing House, 1959). According to the original classification, the following divisions were made: 1. Photoelectric radiation energy converter; 2. Thermoelectric radiation energy converter; and 3. Semiconductor electromagnetic radiation converter. [0003] Theoretical calculations show that the limit photoelectric conversion rate of traditional silicon cells is 29%, so it i...

AI Technical Summary

Problems solved by technology

Due to the fixed band gap (1.12eV) of silicon semiconductors, traditional crystalline silicon solar cells cannot completely absorb and convert natural sunlight energy

The energy in the solar infrared spectrum region that reaches the ground accounts for about 50% of the entire solar spectrum energy, but only sunlight with a wavelength of less than 1100nm can achieve photoelectric conversion in silicon crystals, infrared light with a wavelength greater than 1100nm and ultraviolet light with a wavelength less than 400nm are both Cannot be utilized by silicon solar cells

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