Journal Article Bulk heterojunction photovoltaic active layers via bilayer interdiffusion DOI Link https://doi.org/http://dx.doi.org/10.1021/nl200552r Authors Chen D., Liu F., Wang C., Nakahara A., Russell T.P. Publication Nano Letters Pages 2071-2078 Volume 11 Issue Number 5 Instruments GP-SANS | CG-2 | HFIR