Fast-Grown Interpenetrating Network in Poly(3-hexylthiophene): Methanofullerenes Solar Cells Processed with Additive

Hsiang-Yu Chen,† Hoichang Yang,‡ Guanwen Yang,† Srinivas Sista,† Ruben Zadoyan,§ Gang Li, and Yang Yang*,† Department of Materials Science and Engineering, UniVersity of CaliforniasLos Angeles, Los Angeles, California 90095, Department of AdVanced Fiber Engineering, Inha UniVersity, Yonghyun-dong 253, Incheon 402-751, Korea, Technology and Applications Center, Newport Corporation, 1791 Deere AVe, IrVine, California 92606, and Solarmer Energy, Inc., El Monte, California 91731