We would like to evaluate the vertical depth concentration profile for a blend of two materials that make a relatively high efficiency polymer solar cell device. Measurements of the device efficiencies have shown that comparable efficiencies can be achieved from spin coating a blend of the two constituent materials as is possible from sequential deposition of each component. So with neutron reflectometry we would like to assess if using the sequential deposition route we have created a bilayer device or if it is fact a much more akin to an intermixed nanophase separated network bulk heterojunction, like that created from a solution blend. We have asked for this time via the rapid access route as we would like to submit this work for publication in the coming months, understanding the processing steps via neutron reflectivity would greatly benefit the applicability of these devices.