Anti-Reflective Coating for Solar?

I'm looking into building my own solar panels for my house. I've read up on it and it looks completely do-able. However, several professionally built solar panels have an anti-reflective coating on the gl in order to increase efficiency. At the moment I'm leaning toward fibergl for strength (I live in snow/ice country). Does anyone know of any kind of anti-reflective stray or anything that I could purchase and apply myself? Or perhaps something similar that would have the same effect?