A High Efficiency Nonfullerene Organic Solar Cell with Optimized Crystalline Organizations

Oh Kyu Kwon; Mohammad Afsar Uddin; Jung-Hwa Park; Sang Kyu Park; Thanh Luan Nguyen; Han Young Woo; Soo Young Park

doi:10.1002/adma.201504091

A High Efficiency Nonfullerene Organic Solar Cell with Optimized Crystalline Organizations

Adv Mater. 2016 Feb 3;28(5):910-6. doi: 10.1002/adma.201504091. Epub 2015 Dec 7.

Authors

Oh Kyu Kwon¹, Mohammad Afsar Uddin², Jung-Hwa Park¹, Sang Kyu Park¹, Thanh Luan Nguyen³, Han Young Woo³, Soo Young Park¹

Affiliations

¹ Center for Supramolecular Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, South Korea.
² Department of Cogno-Mechatronics Engineering, Pusan National University, Miryang, 627-706, South Korea.
³ Department of Chemistry, Korea University, Seoul, 136-713, South Korea.

PMID: 26640168
DOI: 10.1002/adma.201504091

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.

Keywords: fullerene-free devices; nonfullerene acceptors; semicrystalline photovoltaic materials; thermal annealing.