It's not a Glass it is a Transparent Wood

     A team of researchers at the University of Maryland has taken the idea of making wood transparent one better, by making it stronger than glass and thus more useful for a variety of applications.  And this transparent wood is more stronger than glass and it might be useful in solar panel development.
     
     It could be done by boiling pieces of wood in water, Sodium hydroxide and a few other chemicals for approximately two hours to remove the lignin that gives wood its color. Afterwards they applied a transparent polymer to give the resulting product back some of the resilience it lost when the lignin was removed.

     In this new effort, the researchers used approximately the same technique to remove the lignin, but then coated it with  an epoxy to make the wood even stronger than glass, and it will biodegrade much better than plastic.

     As the team notes, treating wood does not destroy the channels in it that were originally used by the tree it came from to carry water. After treatment, the channels are able to carry light, a very useful property that might lead to transparent wood being used as a way to funnel more light to solar panels - testing has shown that as much as 90 percent of the light shone on it could pass through. It also means the wood is able to scatter light, which could make it useful as a privacy window - light could come through, but those passing by outside would not be able to make out the forms of people inside.

     The researchers believe their product might also prove useful in automobiles, because it is so light, or as building blocks in other applications, or even in optical equipment because it is so inexpensive to make. Before that can happen, though , more work needs to be done, because the current process only works on small pieces of wood - the test material was just five by five inches in area and only a centimeter thick.