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Controllable Fabrication of Silicon Solar Cells with Inverted or Upright Pyramid Structures by a One-Step Copper Catalysis Method

SSRN, ISSN: 1556-5068
2023
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    108

Article Description

Research shows that the inverted pyramid has better light trapping properties than the upright pyramid structure. In this paper, the inverted pyramid structure was prepared on the surface of monocrystal silicon wafer by one-step copper ion metal assisted chemical etching (MACE). In addition, the method can obtain the desired inverted pyramid structure or upright pyramid structure by adjusting the concentration of different components in the solution. The characterization of the textured silicon wafers shows that the inverted pyramid structure has a lower reflectivity than the upright pyramid structure and polished silicon. From the test results of various parameters of the solar cell, it can be seen that the solar cell with the inverted pyramid structure performs better than the solar cell with the upright pyramid structure, which is reflected in the lower reflectivity and higher photoelectric conversion efficiency.

Bibliographic Details

Chenliang Huo

Elsevier BV

Multidisciplinary; silicon surface; Acid etching; Inverted pyramid structure; Silicon solar cells

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