Journal Article

PUBDB-2015-01003

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Influence of Solvent and Solvent Additive on the Morphology of PTB7 Films Probed via X-ray Scattering

Guo, S.>Extern* ; Herzig, E. M. ; Naumann, A. ; Tainter, G. ; Perlich, J.DESY* ; Müller-Buschbaum, P. (Corresponding Author)>Extern*

2014
Soc. Washington, DC

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Please use a persistent id in citations: doi:10.1021/jp410075a

Abstract: Films of the semiconducting polymer poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] with 40% fluorinated monomers, denoted PTB7-F40, are spin coated out of different solvents onto PEDOT:PSS films. The influence of the used solvents chlorobenzene, 1,2-dichlorobenzene, and 1,2,4-trichlorobenzene as well as the influence of the additive 1,8-diiodooctane (DIO) is probed with grazing incidence small- and wide-angle X-ray scattering (GISAXS and GIWAXS). As seen with GISAXS, without DIO, the films are homogeneous and show roughness correlation with the PEDOT:PSS film surface. With DIO, an inner film structure with a size of 50–75 nm is found and the roughness correlations weaken. In addition, as seen in GIWAXS, the crystalline part of the films is influenced by the used solvent if DIO is added.

Note: (c) American Chemical Society. Post referee full text in progress.

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Contributing Institute(s):

1. DOOR-User (DOOR)

Research Program(s):

1. DORIS Beamline BW4 (POF2-54G13) (POF2-54G13)
2. FS-Proposal: I-20110417 (I-20110417) (I-20110417)

Experiment(s):

1. DORIS Beamline BW4 (DORIS III)

Appears in the scientific report 2014

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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