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Design of organic ternary blends and small-molecule bulk heterojunctions: photophysical considerations

Creator:

Rajesh, Kallarakkal Ramakrishnan, Paudel, Keshab, Johnson, Brian, Hallani, Rawad, Anthony, John, and Ostroverkhova, Oksana

Abstract:

We explored relationships between photophysical processes and solar cell characteristics in solution-processable bulk heterojunctions (BHJs), in particular: (1) polymer donor:fullerene acceptor:small-molecule (SM) nonfullerene acceptor, (2) polymer donor:SM donor:SM nonfullerene acceptor, and (3) SM donor:SM nonfullerene or fullerene acceptor. Addition of a nonfullerene SM acceptor to “efficient” polymer:fullerene BHJs led to...

Resource Type:

Article

Full Text:

,a Keshab Paudel,a Brian Johnson,a Rawad Hallani,b John Anthony,b and Oksana Ostroverkhovaa