Controlling the field-effect mobility of regioregular polythiophene by changing the molecular weight

R. Joseph Kline; Michael D. McGehee; Ekaterina N. Kadnikova; Jinsong Liu; Jean M.J. Fréchet

doi:10.1002/adma.200305275

Controlling the field-effect mobility of regioregular polythiophene by changing the molecular weight

R. Joseph Kline, Michael D. McGehee^*, Ekaterina N. Kadnikova, Jinsong Liu, Jean M.J. Fréchet

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

929 Scopus citations

Abstract

The molecular weight (MW) of regioregular poly(3-hexyl-thiophene) (RR P3HT) has a substantial effect on the way that the chains pack on each other, and that this, in turn, causes the mobility to vary by at least four orders of magnitude. The given data does not show that disordered films are intrinsically better than highly crystalline films. Yet, it does show that factors other than crystallinity has a strong effect on mobility, and that these other factors must be considered when optimizing polymer devices.

Original language	English (US)
Pages (from-to)	1519-1522
Number of pages	4
Journal	Advanced Materials
Volume	15
Issue number	18
DOIs	https://doi.org/10.1002/adma.200305275
State	Published - Sep 16 2003
Externally published	Yes

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
General Materials Science

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AU - Liu, Jinsong

AU - Fréchet, Jean M.J.

PY - 2003/9/16

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AB - The molecular weight (MW) of regioregular poly(3-hexyl-thiophene) (RR P3HT) has a substantial effect on the way that the chains pack on each other, and that this, in turn, causes the mobility to vary by at least four orders of magnitude. The given data does not show that disordered films are intrinsically better than highly crystalline films. Yet, it does show that factors other than crystallinity has a strong effect on mobility, and that these other factors must be considered when optimizing polymer devices.

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Controlling the field-effect mobility of regioregular polythiophene by changing the molecular weight

Abstract

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