I am currently creating a solar cell based on Thiophene (P3HT), mimicking the cell in the following atricle.
The stack is :
Glass
ITO
~40 nm PEDOT:PSS
~50 nm P3HT
~50 nm Al (or Ca-Al)




Thermally Stable, Efficient Polymer Solar Cells with Nanoscale Control of the Interpenetratin Newtork Morphology, from UCSB