Textured etching with acidic or alkaline solution is widely used to reduce the reflectance of Si wafers for photovoltaic applications. The etching time and solution temperature dependences of the reflectance of mono-crystalline Si wafers were studied ...
Textured etching with acidic or alkaline solution is widely used to reduce the reflectance of Si wafers for photovoltaic applications. The etching time and solution temperature dependences of the reflectance of mono-crystalline Si wafers were studied with 2% KOH solution. After etching the specular reflectance and total reflectance decreased significantly, especially for the sample etched at 80℃ for 50 min.