Polymer Solar Cells: Controlling Molecular Orientation of Naphthalenediimide-Based Polymer Acceptors for High Performance All-Polymer Solar Cells (Adv. Energy Mater. 15/2016)

초록

Molecular orientation plays a critical role in determing the performance of all-polymer solar cells. In article number 1600504, Bumjoon J. Kim and co-workers report an approach for tuning the molecular crystallinity and orientation of naphthalenediimide-bithiophene-based n-type polymers (P(NDI2HD-T2)) by controlling their number average molecular weights. The cover image depicts the bulk heterojunction all-polymer solar cell with PTB7-Th donor and P(NDI2HD-T2) acceptor. The packing orientation of two polymers in thin film and at the interface is critical for producing high-performance solar cells.

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