High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cells

J. Kesters; S. Govaerts; G. Pirotte; J. Drijkoningen; M. Chevrier; N. van den Brande; x.j. liu; M. Fahlman; B. van Mele; L. Lutsen; D. Vanderzande; J. Manca; S. Clement; E.L. von Hauff

doi:10.1021/acsami.6b00242

High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cells

J. Kesters, S. Govaerts, G. Pirotte, J. Drijkoningen, M. Chevrier, N. van den Brande, x.j. liu, M. Fahlman, B. van Mele, L. Lutsen, D. Vanderzande, J. Manca, S. Clement, E.L. von Hauff

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Conjugated polyelectrolyte (CPE) interfacial layers present a powerful way to boost the I-V characteristics of organic photovoltaics. Nevertheless, clear guidelines with respect to the structure of high-performance interlayers are still lacking. In this work, impedance spectroscopy is applied to probe the dielectric permittivity of a series of polythiophene-based CPEs. The presence of ionic pendant groups grants the formation of a capacitive double layer, boosting the charge extraction and device efficiency. A counteracting effect is the diminishing affinity with the underlying photoactive layer. To balance these two effects, we found copolymer structures containing nonionic side chains to be beneficial.

Original language	English
Pages (from-to)	6309-6314
Journal	ACS Applied Materials and Interfaces
Volume	8
Issue number	10
DOIs	https://doi.org/10.1021/acsami.6b00242
Publication status	Published - 2016

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Kesters, J., Govaerts, S., Pirotte, G., Drijkoningen, J., Chevrier, M., van den Brande, N., liu, X. J., Fahlman, M., van Mele, B., Lutsen, L., Vanderzande, D., Manca, J., Clement, S., & von Hauff, E. L. (2016). High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cells. ACS Applied Materials and Interfaces, 8(10), 6309-6314. https://doi.org/10.1021/acsami.6b00242

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title = "High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cells",

abstract = "Conjugated polyelectrolyte (CPE) interfacial layers present a powerful way to boost the I-V characteristics of organic photovoltaics. Nevertheless, clear guidelines with respect to the structure of high-performance interlayers are still lacking. In this work, impedance spectroscopy is applied to probe the dielectric permittivity of a series of polythiophene-based CPEs. The presence of ionic pendant groups grants the formation of a capacitive double layer, boosting the charge extraction and device efficiency. A counteracting effect is the diminishing affinity with the underlying photoactive layer. To balance these two effects, we found copolymer structures containing nonionic side chains to be beneficial.",

author = "J. Kesters and S. Govaerts and G. Pirotte and J. Drijkoningen and M. Chevrier and {van den Brande}, N. and x.j. liu and M. Fahlman and {van Mele}, B. and L. Lutsen and D. Vanderzande and J. Manca and S. Clement and {von Hauff}, E.L.",

year = "2016",

doi = "10.1021/acsami.6b00242",

language = "English",

volume = "8",

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journal = "ACS Applied Materials and Interfaces",

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Kesters, J, Govaerts, S, Pirotte, G, Drijkoningen, J, Chevrier, M, van den Brande, N, liu, XJ, Fahlman, M, van Mele, B, Lutsen, L, Vanderzande, D, Manca, J, Clement, S & von Hauff, EL 2016, 'High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cells', ACS Applied Materials and Interfaces, vol. 8, no. 10, pp. 6309-6314. https://doi.org/10.1021/acsami.6b00242

TY - JOUR

T1 - High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cells

AU - Kesters, J.

AU - Govaerts, S.

AU - Pirotte, G.

AU - Drijkoningen, J.

AU - Chevrier, M.

AU - van den Brande, N.

AU - liu, x.j.

AU - Fahlman, M.

AU - van Mele, B.

AU - Lutsen, L.

AU - Vanderzande, D.

AU - Manca, J.

AU - Clement, S.

AU - von Hauff, E.L.

PY - 2016

Y1 - 2016

N2 - Conjugated polyelectrolyte (CPE) interfacial layers present a powerful way to boost the I-V characteristics of organic photovoltaics. Nevertheless, clear guidelines with respect to the structure of high-performance interlayers are still lacking. In this work, impedance spectroscopy is applied to probe the dielectric permittivity of a series of polythiophene-based CPEs. The presence of ionic pendant groups grants the formation of a capacitive double layer, boosting the charge extraction and device efficiency. A counteracting effect is the diminishing affinity with the underlying photoactive layer. To balance these two effects, we found copolymer structures containing nonionic side chains to be beneficial.

AB - Conjugated polyelectrolyte (CPE) interfacial layers present a powerful way to boost the I-V characteristics of organic photovoltaics. Nevertheless, clear guidelines with respect to the structure of high-performance interlayers are still lacking. In this work, impedance spectroscopy is applied to probe the dielectric permittivity of a series of polythiophene-based CPEs. The presence of ionic pendant groups grants the formation of a capacitive double layer, boosting the charge extraction and device efficiency. A counteracting effect is the diminishing affinity with the underlying photoactive layer. To balance these two effects, we found copolymer structures containing nonionic side chains to be beneficial.

U2 - 10.1021/acsami.6b00242

DO - 10.1021/acsami.6b00242

M3 - Article

SN - 1944-8244

VL - 8

SP - 6309

EP - 6314

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 10

ER -

High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cells

Abstract

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