Provided are solar cell assemblies for harvesting solar radiation having a diffractive optic, a reflective surface that directs solar radiation to the diffractive optic, and a plurality of solar converters including a first converter having a first energy conversion efficiency, wherein the diffractive optic directs a first portion of the solar radiation to the first converter and a second portion of the solar radiation to the second converter.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
 This invention was made with United States Government support under federal Grant No. DE-SC0001013 as a seedling project at the Center for Energy Science established as an Energy Frontier Research Center by the Department of Energy. The United States Government has certain rights in this invention.