A while back I read an article about Indium Gallium Nitrate and how it reacts to photon bombardment. It was a 2002 or 2003 article from the University of Maryland ? ...maybe
I told my son and we started brainstorming ......we came up with a grid of florescent tube type solar PV panels with a reflective base. The shape and vacuum containment was to maximize output and protect the compounds from atmospheric moisture solving the only problems for PV use .....or so we had hoped ......we never attempted it.
On March 20 2009 the Gov guaranteed a 535 million dollar loan to Solyndra Inc to develop a new solar panel 5 times more efficient....... somebody else did it!
http://www.solyndra.com/Products/More-Electricity