Molecular Packing of High-Mobility Diketo Pyrrolo-Pyrrole Polymer Semiconductors with Branched Alkyl Side Chains.
We describe a series of highly soluble diketo pyrrolo-pyrrole (DPP)-bithiophene copolymers exhibiting field effect hole mobilities up to 0.74 cm V s, with a common synthetic motif of bulky 2-octyldodecyl side groups on the conjugated backbone. Spectroscopy, diffraction, and microscopy measurements r...
| Publicado en: | Journal of the American Chemical Society Vol. 133; no. 38; pp. 15073 - 15085 |
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| Autores principales: | , , , , , , , , , , , , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
9/28/2011
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=66650034&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 66650034 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 9/28/2011 vid: 133 iid: 38 pid: 997 pub: American Chemical Society artinfo: ui: 66650034 10.1021/ja204515s ppf: 15073 ppct: 12 formats: tig: atl: Molecular Packing of High-Mobility Diketo Pyrrolo-Pyrrole Polymer Semiconductors with Branched Alkyl Side Chains. aug: au: Xinran Zhang Richter, Lee J. DeLongchamp, Dean M. Kline, R. Joseph Hammond, Matthew R. McCulloch, Iain Heeney, Martin Ashraf, Raja S. Smith, Jeremy N. Anthopoulos, Thomas D. Schroeder, Bob Geerts, Yves H. Fischer, Daniel A. Toney, Michael F. affil: Polymers Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States Surface and Microanalysis Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States Department of Chemistry and Centre for Plastic Electronics, Imperial College London, South Kensington, SW7 2AZ, United Kingdom Department of Physics and Centre for Plastic Electronics, Imperial College London, South Kensington, SW7 2AZ, United Kingdom Université Libre de Bruxelles (ULB), Faculté des Sciences, Laboratoire Chimie des Polymères, CP 206/1, Boulevard du Triomphe, 1050 Brussels, Belgium Ceramics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States Stanford Synchrotron Radiation Lightsource, Menlo Park, California 94025, United States su: Semiconductors Copolymers Spectrum analysis Optical diffraction Molecular dynamics Polymer liquid crystals sug: subj: Semiconductors Copolymers Spectrum analysis Optical diffraction Molecular dynamics Polymer liquid crystals ab: We describe a series of highly soluble diketo pyrrolo-pyrrole (DPP)-bithiophene copolymers exhibiting field effect hole mobilities up to 0.74 cm V s, with a common synthetic motif of bulky 2-octyldodecyl side groups on the conjugated backbone. Spectroscopy, diffraction, and microscopy measurements reveal a transition in molecular packing behavior from a preferentially edge-on orientation of the conjugated plane to a preferentially face-on orientation as the attachment density of the side chains increases. Thermal annealing generally reduces both the face-on population and the misoriented edge-on domains. The highest hole mobilities of this series were obtained from edge-on molecular packing and in-plane liquid-crystalline texture, but films with a bimodal orientation distribution and no discernible in-plane texture exhibited surprisingly comparable mobilities. The high hole mobility may therefore arise from the molecular packing feature common to the entire polymer series: backbones that are strictly oriented parallel to the substrate plane and coplanar with other backbones in the same layer. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2011 holdings: @attributes: islocal: N |
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