Fullerene-capped copolymers for bulk heterojunctions: device stability and efficiency improvements

Mahfoudh Raïssi, Harikrishna Erothu, Emmanuel Ibarboure, Henri Cramail, Laurence Vignau, Eric Cloutet, Roger C. Hiorns

Research output: Contribution to journalArticle

Abstract

A fullerene end-capped polymer-compatibilizer based on poly(3-hexylthiophene) (P3HT) was synthesized and demonstrated to have a remarkable effect on both the stability and efficiency of devices made from exemplar P3HT and [6,6]-phenyl C61-butyric acid methyl ester (PCBM). P3HT with ethynyl chain-ends and α-azido-ω-bromo-PS were prepared via Grignard metathesis (GRIM) and atom transfer radical polymerisation, respectively. “Click” chemistry resulted in the preparation of poly(3-hexylthiophene)-block-ω-bromo-polystyrene (P3HT-b-PS-Br), and subsequent atom transfer radical addition chemistry with fullerene (C60) yielded the donor–acceptor block copolymer P3HT-b-PS-C60. Both P3HT-b-PS-Br and P3HT-b-PS-C60 were considered as compatibilizers with P3HT/PCBM blends, with the study detailing effects on active-layer morphology, device efficiency and stability. When used at low concentrations, both P3HT-b-PS-Br (1%) and P3HT-b-PS-C60 (0.5%) resulted in considerable 28% and 35% increases in efficiencies with respect to devices made from P3HT/PCBM alone. Furthermore, P3HT-b-PS-C60 (0.5%) resulted in an important improvement in device stability.
Original languageEnglish
Pages (from-to)18207-18221
Number of pages15
JournalJournal of Materials Chemistry A
Volume3
Issue number35
Early online date30 Jul 2015
DOIs
Publication statusPublished - 21 Sep 2015

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Fullerenes
Butyric acid
Heterojunctions
Esters
Copolymers
Compatibilizers
Atom transfer radical polymerization
Block copolymers
Polystyrenes
Atoms
Butyric Acid
Polymers
poly(3-hexylthiophene)

Cite this

Raïssi, M., Erothu, H., Ibarboure, E., Cramail, H., Vignau, L., Cloutet, E., & Hiorns, R. C. (2015). Fullerene-capped copolymers for bulk heterojunctions: device stability and efficiency improvements. Journal of Materials Chemistry A, 3(35), 18207-18221. https://doi.org/10.1039/C5TA02705E
Raïssi, Mahfoudh ; Erothu, Harikrishna ; Ibarboure, Emmanuel ; Cramail, Henri ; Vignau, Laurence ; Cloutet, Eric ; Hiorns, Roger C. / Fullerene-capped copolymers for bulk heterojunctions: device stability and efficiency improvements. In: Journal of Materials Chemistry A. 2015 ; Vol. 3, No. 35. pp. 18207-18221.
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Raïssi, M, Erothu, H, Ibarboure, E, Cramail, H, Vignau, L, Cloutet, E & Hiorns, RC 2015, 'Fullerene-capped copolymers for bulk heterojunctions: device stability and efficiency improvements', Journal of Materials Chemistry A, vol. 3, no. 35, pp. 18207-18221. https://doi.org/10.1039/C5TA02705E

Fullerene-capped copolymers for bulk heterojunctions: device stability and efficiency improvements. / Raïssi, Mahfoudh; Erothu, Harikrishna; Ibarboure, Emmanuel; Cramail, Henri; Vignau, Laurence; Cloutet, Eric; Hiorns, Roger C.

In: Journal of Materials Chemistry A, Vol. 3, No. 35, 21.09.2015, p. 18207-18221.

Research output: Contribution to journalArticle

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T1 - Fullerene-capped copolymers for bulk heterojunctions: device stability and efficiency improvements

AU - Raïssi, Mahfoudh

AU - Erothu, Harikrishna

AU - Ibarboure, Emmanuel

AU - Cramail, Henri

AU - Vignau, Laurence

AU - Cloutet, Eric

AU - Hiorns, Roger C.

PY - 2015/9/21

Y1 - 2015/9/21

N2 - A fullerene end-capped polymer-compatibilizer based on poly(3-hexylthiophene) (P3HT) was synthesized and demonstrated to have a remarkable effect on both the stability and efficiency of devices made from exemplar P3HT and [6,6]-phenyl C61-butyric acid methyl ester (PCBM). P3HT with ethynyl chain-ends and α-azido-ω-bromo-PS were prepared via Grignard metathesis (GRIM) and atom transfer radical polymerisation, respectively. “Click” chemistry resulted in the preparation of poly(3-hexylthiophene)-block-ω-bromo-polystyrene (P3HT-b-PS-Br), and subsequent atom transfer radical addition chemistry with fullerene (C60) yielded the donor–acceptor block copolymer P3HT-b-PS-C60. Both P3HT-b-PS-Br and P3HT-b-PS-C60 were considered as compatibilizers with P3HT/PCBM blends, with the study detailing effects on active-layer morphology, device efficiency and stability. When used at low concentrations, both P3HT-b-PS-Br (1%) and P3HT-b-PS-C60 (0.5%) resulted in considerable 28% and 35% increases in efficiencies with respect to devices made from P3HT/PCBM alone. Furthermore, P3HT-b-PS-C60 (0.5%) resulted in an important improvement in device stability.

AB - A fullerene end-capped polymer-compatibilizer based on poly(3-hexylthiophene) (P3HT) was synthesized and demonstrated to have a remarkable effect on both the stability and efficiency of devices made from exemplar P3HT and [6,6]-phenyl C61-butyric acid methyl ester (PCBM). P3HT with ethynyl chain-ends and α-azido-ω-bromo-PS were prepared via Grignard metathesis (GRIM) and atom transfer radical polymerisation, respectively. “Click” chemistry resulted in the preparation of poly(3-hexylthiophene)-block-ω-bromo-polystyrene (P3HT-b-PS-Br), and subsequent atom transfer radical addition chemistry with fullerene (C60) yielded the donor–acceptor block copolymer P3HT-b-PS-C60. Both P3HT-b-PS-Br and P3HT-b-PS-C60 were considered as compatibilizers with P3HT/PCBM blends, with the study detailing effects on active-layer morphology, device efficiency and stability. When used at low concentrations, both P3HT-b-PS-Br (1%) and P3HT-b-PS-C60 (0.5%) resulted in considerable 28% and 35% increases in efficiencies with respect to devices made from P3HT/PCBM alone. Furthermore, P3HT-b-PS-C60 (0.5%) resulted in an important improvement in device stability.

UR - http://pubs.rsc.org/en/Content/ArticleLanding/2015/TA/C5TA02705E#!divAbstract

U2 - 10.1039/C5TA02705E

DO - 10.1039/C5TA02705E

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JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

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