A High Efficiency Nonfullerene Organic Solar Cell with Optimized Crystalline Organizations.

Kwon, Oh Kyu; Uddin, Mohammad Afsar; Park, Jung-Hwa; Park, Sang Kyu; Nguyen, Thanh Luan; Woo, Han Young; Park, Soo Young · Adv Mater · 2016

basic_science · Level V

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Abstract

A well-organized donor-acceptor crystalline structure is examined for high -performance nonfullerene solar cells. By thermal annealing, nanoscale structures of both donor and acceptor domains are successfully modulated, followed by -significant changes in the resulting -photovoltaic characteristics. When annealed at 90 °C, a maximum power conversion efficiency of 7.64% with a -remarkable open-circuit voltage of 1.03 V is obtained.