Tailored donor-acceptor polymers with an A-D1-A-D2 structure: Controlling intermolecular interactions to enable enhanced polymer photovoltaic devices

Tianshi Qin, Wojciech Zajaczkowski, Wojciech Pisula, Martin Baumgarten, Ming Chen, Mei Gao, Gerry Wilson, Christopher D. Easton, Klaus Müllen, Scott E. Watkins