In-Operando Study of the Effects of Solvent Additives on the Stability of Organic Solar Cells Based on PTB7-Th:PC                         71                         BM

Dan Yang; Franziska C. Löhrer; Volker Körstgens; Armin Schreiber; Sigrid Bernstorff; Jillian M. Buriak; Peter Müller-Buschbaum

doi:10.1021/acsenergylett.8b02311

In-Operando Study of the Effects of Solvent Additives on the Stability of Organic Solar Cells Based on PTB7-Th:PC ₇₁ BM

Dan Yang, Franziska C. Löhrer, Volker Körstgens, Armin Schreiber, Sigrid Bernstorff, Jillian M. Buriak, Peter Müller-Buschbaum

Chair of Functional Materials

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Abstract

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 (PC ₇₁ BM). 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.

Original language	English
Pages (from-to)	464-470
Number of pages	7
Journal	ACS Energy Letters
Volume	4
Issue number	2
DOIs	https://doi.org/10.1021/acsenergylett.8b02311
State	Published - 8 Feb 2019

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Yang, D., Löhrer, F. C., Körstgens, V., Schreiber, A., Bernstorff, S., Buriak, J. M., & Müller-Buschbaum, P. (2019). In-Operando Study of the Effects of Solvent Additives on the Stability of Organic Solar Cells Based on PTB7-Th:PC ₇₁ BM ACS Energy Letters, 4(2), 464-470. https://doi.org/10.1021/acsenergylett.8b02311

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title = " In-Operando Study of the Effects of Solvent Additives on the Stability of Organic Solar Cells Based on PTB7-Th:PC 71 BM ",

abstract = " 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 (PC 71 BM). 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.",

author = "Dan Yang and L{\"o}hrer, {Franziska C.} and Volker K{\"o}rstgens and Armin Schreiber and Sigrid Bernstorff and Buriak, {Jillian M.} and Peter M{\"u}ller-Buschbaum",

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Yang, D, Löhrer, FC, Körstgens, V, Schreiber, A, Bernstorff, S, Buriak, JM & Müller-Buschbaum, P 2019, ' In-Operando Study of the Effects of Solvent Additives on the Stability of Organic Solar Cells Based on PTB7-Th:PC ₇₁ BM ', ACS Energy Letters, vol. 4, no. 2, pp. 464-470. https://doi.org/10.1021/acsenergylett.8b02311

In-Operando Study of the Effects of Solvent Additives on the Stability of Organic Solar Cells Based on PTB7-Th:PC ₇₁ BM . / Yang, Dan; Löhrer, Franziska C.; Körstgens, Volker et al.
In: ACS Energy Letters, Vol. 4, No. 2, 08.02.2019, p. 464-470.

Research output: Contribution to journal › Article › peer-review

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AU - Yang, Dan

AU - Löhrer, Franziska C.

AU - Körstgens, Volker

AU - Schreiber, Armin

AU - Bernstorff, Sigrid

AU - Buriak, Jillian M.

AU - Müller-Buschbaum, Peter

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AB - 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 (PC 71 BM). 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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Yang D, Löhrer FC, Körstgens V, Schreiber A, Bernstorff S, Buriak JM et al. In-Operando Study of the Effects of Solvent Additives on the Stability of Organic Solar Cells Based on PTB7-Th:PC ₇₁ BM ACS Energy Letters. 2019 Feb 8;4(2):464-470. doi: 10.1021/acsenergylett.8b02311

In-Operando Study of the Effects of Solvent Additives on the Stability of Organic Solar Cells Based on PTB7-Th:PC ₇₁ BM

Abstract

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