Z. El Malki, K. Hasnaoui, S. M. Bouzzine, et al., “Chemical Synthesis, Electronic Study, and Vibrational Analysis of a New Organic Copolymer Based on PVK and 3-nhexylthiophene,” SRX Chemistry, vol. 2010, Article ID 346843, 2010. doi:10.3814/2010/346843