The impact of molecular weight on microstructure and charge transport in semicrystalline polymer semiconductors-poly(3-hexylthiophene), a model study

Felix Peter Vinzenz Koch, Jonathan Rivnay, Sam Foster, Christian Müller, Jonathan M. Downing, Ester Buchaca-Domingo, Paul Westacott, Liyang Yu, Mingjian Yuan, Mohammed Baklar, Zhuping Fei, Christine Luscombe, Martyn A. McLachlan, Martin Heeney, Gary Rumbles, Carlos Silva, Alberto Salleo, Jenny Nelson, Paul Smith, Natalie Stingelin

Research output: Contribution to journalArticle

117 Citations (Scopus)

Abstract

Electronic properties of organic semiconductors are often critically dependent upon their ability to order from the molecular level to the macro-scale, as is true for many other materials attributes of macromolecular matter such as mechanical characteristics. Therefore, understanding of the molecular assembly process and the resulting solid-state short- and long-range order is critical to further advance the field of organic electronics. Here, we will discuss the structure development as a function of molecular weight in thin films of a model conjugated polymer, poly(3-hexylthiophene) (P3HT), when processed from solution and the melt. While focus is on the microstructural manipulation and characterization, we also treat the influence of molecular arrangement and order on electronic processes such as charge transport and show, based on classical polymer science arguments, how accounting for the structural complexity of polymers can provide a basis for establishing relevant processing/structure/property-interrelationships to explain some of their electronic features. Such relationships can assist with the design of new materials and definition of processing protocols that account for the molecular length, chain rigidity and propensity to order of a given system.

Original languageEnglish
Pages (from-to)1978-1989
Number of pages12
JournalProgress in Polymer Science
Volume38
Issue number12
DOIs
Publication statusPublished - Dec 2013

Fingerprint

Charge transfer
molecular weight
Polymers
Molecular weight
Semiconductor materials
microstructure
Microstructure
Semiconducting organic compounds
Conjugated polymers
polymers
Processing
Chain length
electronics
Rigidity
Electronic properties
Macros
Electronic equipment
Network protocols
Thin films
organic semiconductors

Keywords

  • Chain-extended crystals
  • Charge transport
  • Molecular weight
  • Poly(3-hexylthiophene)
  • Semicrystalline

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Surfaces and Interfaces

Cite this

The impact of molecular weight on microstructure and charge transport in semicrystalline polymer semiconductors-poly(3-hexylthiophene), a model study. / Koch, Felix Peter Vinzenz; Rivnay, Jonathan; Foster, Sam; Müller, Christian; Downing, Jonathan M.; Buchaca-Domingo, Ester; Westacott, Paul; Yu, Liyang; Yuan, Mingjian; Baklar, Mohammed; Fei, Zhuping; Luscombe, Christine; McLachlan, Martyn A.; Heeney, Martin; Rumbles, Gary; Silva, Carlos; Salleo, Alberto; Nelson, Jenny; Smith, Paul; Stingelin, Natalie.

In: Progress in Polymer Science, Vol. 38, No. 12, 12.2013, p. 1978-1989.

Research output: Contribution to journalArticle

Koch, FPV, Rivnay, J, Foster, S, Müller, C, Downing, JM, Buchaca-Domingo, E, Westacott, P, Yu, L, Yuan, M, Baklar, M, Fei, Z, Luscombe, C, McLachlan, MA, Heeney, M, Rumbles, G, Silva, C, Salleo, A, Nelson, J, Smith, P & Stingelin, N 2013, 'The impact of molecular weight on microstructure and charge transport in semicrystalline polymer semiconductors-poly(3-hexylthiophene), a model study', Progress in Polymer Science, vol. 38, no. 12, pp. 1978-1989. https://doi.org/10.1016/j.progpolymsci.2013.07.009
Koch, Felix Peter Vinzenz ; Rivnay, Jonathan ; Foster, Sam ; Müller, Christian ; Downing, Jonathan M. ; Buchaca-Domingo, Ester ; Westacott, Paul ; Yu, Liyang ; Yuan, Mingjian ; Baklar, Mohammed ; Fei, Zhuping ; Luscombe, Christine ; McLachlan, Martyn A. ; Heeney, Martin ; Rumbles, Gary ; Silva, Carlos ; Salleo, Alberto ; Nelson, Jenny ; Smith, Paul ; Stingelin, Natalie. / The impact of molecular weight on microstructure and charge transport in semicrystalline polymer semiconductors-poly(3-hexylthiophene), a model study. In: Progress in Polymer Science. 2013 ; Vol. 38, No. 12. pp. 1978-1989.
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