Chien-Lung Wang, Wen-Bin Zhang, Hao-Jan Sun, Ryan M. Van Horn, Rahul R. Kulkarni, Chi-Chun Tsai, Chain-Shu Hsu, Bernard Lotz, Xiong Gong and Stephen Z. D. Cheng A Supramolecular “Double-Cable” Structure with a 12944 Helix in a Columnar Porphyrin-C60 Dyad and its Application in Polymer Solar Cells Advanced Energy Materials 2
A novel electron acceptor enables photogenerated carriers with longer lifetimes compared to PCBM. The novel acceptor is a porphyrin-C60 dyad (PCD) with a supramolecular “double-cable” structure, comprising one p-type porphyrin core columnar channel and three helical n-type C60 peripheral channels. These results indicate that PCDs are good electron acceptors for application in high-performance polymer solar cells.
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