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Chemically driven supramolecular self-assembly of porphyrin donors for high-performance organic solar cells

Author:
Zhou, Xuan, Tang, Wei, Bi, Pengqing, Yan, Lei, Wang, Xingzhu, Wong, Wai-Kwok, Hao, Xiaotao, Ong, Beng S., Zhu, Xunjin
Source:
Journal of materials chemistry 2018 v.6 no.30 pp. 14675-14680
ISSN:
2050-7496
Subject:
chemistry, fullerene, nanowires, optical properties, porphyrins, solar cells, solar energy
Abstract:
Supramolecular self-assembly of a novel acceptor–π–porphyrin–π–acceptor compound driven by intermolecular sulfur–sulfur interactions leads to the formation of J-aggregates composed of helical nanowire structures. These nanowires have exhibited interesting optical activity, and when utilized as a molecular electron donor with a fullerene acceptor in bulk heterojunction organic solar cells, a high photovoltaic power conversion efficiency of over 8% has been achieved.
Agid:
6187735