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Back cover

Journal of Materials Chemistry C Vol - 5 Issue - 5

Journal of Materials Chemistry C Vol - 5 Issue - 4

Journal of Materials Chemistry C Vol - 5 Issue - 3

Journal of Materials Chemistry C Vol - 5 Issue - 2

Journal of Materials Chemistry C Vol -4

Journal of Materials Chemistry C Vol -3

Journal of Materials Chemistry C Vol -2

Journal of Materials Chemistry C Vol -1

Charge separation in an acceptor–donor–acceptor triad material with a lamellar structure

Content Provider	Royal Society of Chemistry (RSC)
Author	Frauenrath, H. Brinkmann, M. Banerji, N. Brauer, J. C. Rolland, D. Hartmann, L. Biniek, L.
Copyright Year	2017
Abstract	Linking covalently both electron donor and acceptor components is an efficient way to gain thermodynamic control over the formation of well-ordered heterojunction materials suitable for organic photovoltaics. In this context, we attached flexible polymer segments to the termini of a (perylene bisimide)–quaterthiophene–(perylene bisimide) triad. The microphase segregation of the resulting coil-rod-coil architecture served to reliably promote the formation of lamellar phases. The lamellae were oriented vertically relative to the substrate, and they could be laterally aligned by mechanical rubbing, as determined by small and wide angle X-ray scattering, transmission electron microscopy, electron diffraction and AFM. Transient absorption spectroscopy revealed that light absorption was followed by charge separation and that charge recombination was slower in thin films than for solution-phase samples, especially when longer side chains were used. Thus, this study is a first step towards reliable lamellar phase segregation in donor–acceptor materials on the route towards improved materials for organic photovoltaics.
Starting Page	1383
Ending Page	1393
Page Count	11
File Format	HTM / HTML PDF
ISSN	20507526
Volume Number	5
Issue Number	6
Journal	Journal of Materials Chemistry C
DOI	10.1039/c6tc03786k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Electron donor Heterojunction Organic solar cell Polymer Perylene Catalytic triad Wide-angle X-ray scattering Transmission electron microscopy Electron diffraction Absorption spectroscopy Carrier generation and recombination Lamellar phase
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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