Nanostructures to reduce optical losses

Abstract

Methods and systems for creating nanostructures to reduce optical losses are provided. An example described herein provides a solar cell. The solar cell includes an antireflective coating including sloped nanostructures formed in a vapor deposition process.

1 .- 11 . (canceled) 
     
     
         12 . A solar cell comprising an antireflective coating comprising sloped nanostructures formed in a vapor deposition process. 
     
     
         13 . The solar cell of  claim 12 , wherein the sloped nanostructures comprise conical nanostructures. 
     
     
         14 . The solar cell of  claim 12 , wherein the sloped nanostructures comprise pyramidal nanostructures. 
     
     
         15 . The solar cell of  claim 12 , wherein the sloped nanostructures comprise ridges. 
     
     
         16 . The solar cell of  claim 12 , wherein the sloped nanostructures comprise an angle of less than 45° along a cross-section through a tip of the sloped nanostructures. 
     
     
         17 . The solar cell of  claim 12 , wherein the sloped nanostructures comprise an angle of greater than 45° along a cross-section through a tip of the sloped nanostructures. 
     
     
         18 . The solar cell of  claim 12 , wherein the sloped nanostructures are disposed at about 500 nm of separation. 
     
     
         19 . The solar cell of  claim 12 , wherein the sloped nanostructures are between about 200 nm and about 450 nm in height. 
     
     
         20 . The solar cell of  claim 12 , wherein the sloped nanostructures are between about 550 nm and about 750 nm in height. 
     
     
         21 . The solar cell of  claim 12 , wherein the sloped nanostructures overlap to form a base layer over the solar cell. 
     
     
         22 . The solar cell of  claim 12 , wherein the sloped nanostructures comprise silicon nitride.