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In-Operando Study of the Effects of Solvent Additives on the Stability of Organic Solar Cells Based on PTB7-Th:PC71BM AITranslate

Dan Yang; Franziska C. Löhrer; Volker Körstgens; Armin Schreiber; Sigrid Bernstorff; Jillian M. Buriak; Peter MüllerBuschbaum;
Lehrstuhl für Funktionelle Materialien;Lehrstuhl für Funktionelle Materialien;Lehrstuhl für Funktionelle Materialien;Lehrstuhl für Funktionelle Materialien;Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 km
1
6
3.5; University of Alberta;Lehrstuhl für Funktionelle Materialien
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Publisher: ACS
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Abstract AITranslate

Degradation of organic solar cells is among the fundamental problems that hinder their successful breakthrough. We probe in-operando the degradation behavior of organic solar cells based on the high-efficiency low-bandgap benzodithiophene copolymer PTB7-Th and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM). The influence of the solvent additives 1,8-diiodooctane and o-chlorobenzaldehyde on the degradation mechanism is studied with in situ grazing incidence small-angle X-ray scattering during operation. Changes in the IV characteristics are correlated for the first time in situ with changes in the morphology showing that the use of a solvent additive causes a change in device degradation.

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DOI：https://doi.org/10.1021/acsenergylett.8b02311

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Citation Information:

Degradation of organic solar cells is among the fundamental problems that hinder their successful breakthrough. We probe in-operando the degradation behavior of organic solar cells based on the high-efficiency low-bandgap benzodithiophene copolymer PTB7-Th and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM). The influence of the solvent additives 1,8-diiodooctane and o-chlorobenzaldehyde on the degradation mechanism is studied with in situ grazing incidence small-angle X-ray scattering during operation. Changes in the IV characteristics are correlated for the first time in situ with changes in the morphology showing that the use of a solvent additive causes a change in device degradation.

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GB/T 7714-2015 [1] Dan Yang, Franziska C. Löhrer, Volker Körstgens, et al. ACS Energy Letters, 2019(4). DOI:10.1021/acsenergylett.8b02311.
MLA [1] Dan Yang, et al., ACS Energy Letters, no. 4, 2019, https://doi.org/10.1021/acsenergylett.8b02311.
APA [1] Dan Yang, Franziska C. Löhrer, Volker Körstgens, Armin Schreiber, Sigrid Bernstorff, Jillian M. Buriak, & Peter MüllerBuschbaum. (2019). ACS Energy Letters(4). https://doi.org/10.1021/acsenergylett.8b02311
IEEE [1] Dan Yang, Franziska C. Löhrer, Volker Körstgens, Armin Schreiber, Sigrid Bernstorff, Jillian M. Buriak, and Peter MüllerBuschbaum, ACS Energy Letters, no. 4, 2019, doi: 10.1021/acsenergylett.8b02311.