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Communication

Effect of Crystallization Kinetics on Microstructure and Charge Transport of Polythiophenes

  1. Kiarash Vakhshouri1,
  2. Enrique D. Gomez1,2,*

Article first published online: 12 OCT 2012

DOI: 10.1002/marc.201200531

Issue

Macromolecular Rapid Communications

Macromolecular Rapid Communications

Volume 33, Issue 24, pages 2133–2137, December 21, 2012

Additional Information

How to Cite

Vakhshouri, K. and Gomez, E. D. (2012), Effect of Crystallization Kinetics on Microstructure and Charge Transport of Polythiophenes. Macromol. Rapid Commun., 33: 2133–2137. doi: 10.1002/marc.201200531

Author Information

  1. 1

    Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA

  2. 2

    Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA

*Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

Publication History

  1. Issue published online: 11 DEC 2012
  2. Article first published online: 12 OCT 2012
  3. Manuscript Revised: 30 AUG 2012
  4. Manuscript Received: 6 AUG 2012

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Keywords:

  • charge transport;
  • conducting polymers;
  • crystallization;
  • microstructure;
  • morphology;
  • organic field effect transistors

Abstract

We have examined the effects of crystallization kinetics of poly(3-hexylthiophene) and poly[2,5-bis(3-hexadecylthiophen-2-yl)thieno(3,2-b)thiophene] on microstructure and charge transport. Rapid crystallization increases the density of tie molecules in polythiophenes. As a consequence, ordered regions are better connected resulting in higher charge carrier mobilities. Our results suggest that controlling the crystallization kinetics might be an important factor for maximizing the charge mobility in semicrystalline polythiophene thin films.

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