US Patent 8072039 - Quantum dot energy conversion film

http://www.freepatentsonline.com/8072039.html

This patent from Samsung teaches how thin films including quantum dots can be used to convert incoming photons to an energy level capable of being converted to electrical energy. Claim 1 reads:

1. A solar cell module comprising:

a solar cell generating an electric current upon absorbing light, and at least one layer comprising a quantum dot and having a thickness of about 20 nanometers to about 10 micrometers,

wherein the layer converts an incident light to a lower energy light on the entire light incident surface of the solar cell.