An Oligothiophene–Fullerene Molecule with a Balanced Donor–Acceptor Backbone for High‐Performance Single‐Component Organic Solar Cells | Zendy

Wang Wei | Zendy; Sun Rui | Zendy; Guo Jing | Zendy; Guo Jie | Zendy; Min Jie | Zendy

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An Oligothiophene–Fullerene Molecule with a Balanced Donor–Acceptor Backbone for High‐Performance Single‐Component Organic Solar Cells

Author(s) -

Wang Wei,

Sun Rui,

Guo Jing,

Guo Jie,

Min Jie

Publication year - 2019

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201908232

Subject(s) - moiety , acceptor , molecule , fullerene , covalent bond , energy conversion efficiency , organic solar cell , rhodanine , materials science , thermal stability , chemistry , polymer chemistry , stereochemistry , organic chemistry , polymer , optoelectronics , physics , condensed matter physics

A new balanced donor–acceptor molecule, namely, benzodithiophene (BDT)‐rhodanine‐[6,6]‐phenyl‐C 71 butyric acid methyl ester (Rh‐PC 71 BM) comprising two covalently linked blocks, a p‐type oligothiophene‐containing BDT‐based moiety and an n‐type PC 71 BM unit was designed and synthesized. The single‐component organic solar cell (SCOSC) fabricated from Rh‐PC 71 BM molecules showed a power conversion efficiency (PCE) of 3.22 % with an open‐circuit voltage ( V oc ) of 0.98 V. These results rank are among the highest values for SCOSCs based on a monomolecular material. In particular, the one‐molecule Rh‐PC 71 BM device exhibits excellent thermal stability compared to reference Rh‐OH:PC 71 BM device. The success of our monomolecular strategy can provide a new way to develop high‐performance SCOSCs.

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