A method for making a sheet of light active material. A first substrate is
provided having a transparent first conductive layer. A pattern of light
active semiconductor elements are formed. The pattern of light active
semiconductor elements may be formed using an electrostatic attraction
and transferring process. The light active semiconductor elements have an
n-side and a p-side. Each light active semiconductor element has either
of the n-side or the p-side in electrical communication with the
transparent conductive layer. A second substrate having a second
conductive layer is provided. The second substrate is secured to the
first substrate so that the other of said n-side or said p-side of each
said light active semiconductor element in electrical communication with
the second conductive layer. Thus, a solid-state sheet of light active
material is formed.