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Issue 38, 2020
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High open-circuit voltage roll-to-roll compatible processed organic photovoltaics

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Abstract

Raising the open circuit voltage (Voc) of organic photovoltaic (OPV) devices is one of the key parameters to enhance performance and increase utility. We report an active layer composed of a quinoxaline-based donor polymer and an N-annulated perylene diimide (PDI) dimer which are stable and readily scaled materials and as blended solutions can be processed into films using non-halogenated solvents and slot-die coating methods. OPV devices with a high Voc exceeding 1.2 V were obtained under one sun illumination. Furthermore, the practical application of indoor light recycling is demonstrated, reporting a high device Voc of 1.1 V under LED illumination. Modification of the cathode interlayer or addition of a third component using perylene diimide (PDI) based materials is shown to further enhance device Voc under all operating conditions.

Graphical abstract: High open-circuit voltage roll-to-roll compatible processed organic photovoltaics

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Supplementary files

Article information


Submitted
30 Jul 2020
Accepted
07 Sep 2020
First published
08 Sep 2020

J. Mater. Chem. C, 2020,8, 13430-13438
Article type
Paper

High open-circuit voltage roll-to-roll compatible processed organic photovoltaics

F. Tintori, A. Laventure, J. D. B. Koenig and G. C. Welch, J. Mater. Chem. C, 2020, 8, 13430
DOI: 10.1039/D0TC03614E

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