Additive for preparing porous pyramid structure by secondary texturing of monocrystalline silicon wafer and application thereof
A technology of pyramid structure and single crystal silicon wafer, which is applied in the directions of single crystal growth, single crystal growth, crystal growth, etc., can solve the problems of high cost and complex process, achieve surface tension reduction, simple process, and improve microstructure uniformity Effect
Active Publication Date: 2020-06-09
CHANGZHOU SHICHUANG ENERGY CO LTD
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Abstract
The invention discloses an additive for preparing a porous pyramid structure by secondary texturing of a monocrystalline silicon wafer. The additive comprises the following components in percentage bymass: 0.1-10% of sodium polystyrenesulfonate, 2-20% of polyethylene glycol, 1-5% of a fluorocarbon surfactant and 20-30% of inorganic salt, with the balance being water. The additive disclosed by theinvention is added into texturing liquid for secondary texturing of the monocrystalline silicon wafer, so the porous pyramid structure can be formed on the surface of the monocrystalline silicon wafer. The method for preparing the porous pyramid structure of the monocrystalline silicon wafer is lower in cost and simpler in process.
Application Domain
Polycrystalline material growthAfter-treatment details +2
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Active agentSurface-active agents +11
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