Laser & Optoelectronics Progress, Volume. 56, Issue 6, 062402(2019)
Influence of Chemical Polishing on Performances of Silicon Heterojunction Solar Cells
ing to avoid the local epitaxial growth of amorphous silicon films in the pyramidal valleys of the textured silicon wafers, a chemical polishing mixture named CP133 is used to polish the textured crystalline silicon (c-Si) surfaces. The research results show that the morphologies of the pyramidal valleys change from V shape to U shape, which clearly improves the passivation effect at the hydrogenated amorphous silicon/crystalline silicon interface. When the temperature is lower than 30 ℃, the solution is difficult to react with the crystalline silicon. However, the problem can be solved by the increase of the solution temperature up to 35 ℃. The performance of the solar cells is relatively good when the polishing time is 30 s and the NaOH texturing solution has a mass fraction of 1%.
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Yuanjian Jiang, Xiaodan Zhang, Ying Zhao. Influence of Chemical Polishing on Performances of Silicon Heterojunction Solar Cells[J]. Laser & Optoelectronics Progress, 2019, 56(6): 062402
Category: Optics at Surfaces
Received: Aug. 31, 2018
Accepted: Oct. 19, 2018
Published Online: Jul. 30, 2019
The Author Email: Jiang Yuanjian (jiyjok3@sina.com)