The influence of film morphology in high-mobility small-molecule: Polymer blend organic transistors

Jeremy Smith; Richard Hamilton; Yabing Qi; Antoine Kahn; Donal D.C. Bradley; Martin Heeney; Iain McCulloch; Thomas D. Anthopoulos

doi:10.1002/adfm.201000427

The influence of film morphology in high-mobility small-molecule: Polymer blend organic transistors

Jeremy Smith, Richard Hamilton, Yabing Qi, Antoine Kahn, Donal D.C. Bradley, Martin Heeney, Iain McCulloch, Thomas D. Anthopoulos

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

113 Scopus citations

Abstract

Organic field-effect transistors (OFETs) based upon blends of small molecular semiconductors and polymers show promise for high performance organic electronics applications. Here the charge transport characteristics of high mobility p-channel orpnic transistors based on 2,8-difluoro-5,11- bis(triethylsilylethynyl) anthradithiophene:poly(triarylamine) blend films are investigated. By simple alteration of the film processing conditions two distinct film microstructures can be obtained: one characterized by small spherulitic grains (SG) and one by large grains (LC). Charge transport measurements reveal thermally activated hole transport in both SC and LG film microstructures with two distinct temperature regimes. For temperatures >115 K, gate voltage dependent activation energies (EA) in the range of 25-60 meV are derived. At temperatures

Original language	English (US)
Pages (from-to)	2330-2337
Number of pages	8
Journal	Advanced Functional Materials
Volume	20
Issue number	14
DOIs	https://doi.org/10.1002/adfm.201000427
State	Published - Jul 23 2010
Externally published	Yes

ASJC Scopus subject areas

Biomaterials
Electrochemistry
Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1002/adfm.201000427

Cite this

@article{1a561070401b4aa78e356de53f78b6bf,

title = "The influence of film morphology in high-mobility small-molecule: Polymer blend organic transistors",

abstract = "Organic field-effect transistors (OFETs) based upon blends of small molecular semiconductors and polymers show promise for high performance organic electronics applications. Here the charge transport characteristics of high mobility p-channel orpnic transistors based on 2,8-difluoro-5,11- bis(triethylsilylethynyl) anthradithiophene:poly(triarylamine) blend films are investigated. By simple alteration of the film processing conditions two distinct film microstructures can be obtained: one characterized by small spherulitic grains (SG) and one by large grains (LC). Charge transport measurements reveal thermally activated hole transport in both SC and LG film microstructures with two distinct temperature regimes. For temperatures >115 K, gate voltage dependent activation energies (EA) in the range of 25-60 meV are derived. At temperatures",

author = "Jeremy Smith and Richard Hamilton and Yabing Qi and Antoine Kahn and Bradley, {Donal D.C.} and Martin Heeney and Iain McCulloch and Anthopoulos, {Thomas D.}",

note = "Generated from Scopus record by KAUST IRTS on 2023-02-14",

year = "2010",

month = jul,

day = "23",

doi = "10.1002/adfm.201000427",

language = "English (US)",

volume = "20",

pages = "2330--2337",

journal = "Advanced Materials for Optics and Electronics",

issn = "1057-9257",

publisher = "John Wiley and Sons Ltd",

number = "14",

}

TY - JOUR

T1 - The influence of film morphology in high-mobility small-molecule: Polymer blend organic transistors

AU - Smith, Jeremy

AU - Hamilton, Richard

AU - Qi, Yabing

AU - Kahn, Antoine

AU - Bradley, Donal D.C.

AU - Heeney, Martin

AU - McCulloch, Iain

AU - Anthopoulos, Thomas D.

N1 - Generated from Scopus record by KAUST IRTS on 2023-02-14

PY - 2010/7/23

Y1 - 2010/7/23

N2 - Organic field-effect transistors (OFETs) based upon blends of small molecular semiconductors and polymers show promise for high performance organic electronics applications. Here the charge transport characteristics of high mobility p-channel orpnic transistors based on 2,8-difluoro-5,11- bis(triethylsilylethynyl) anthradithiophene:poly(triarylamine) blend films are investigated. By simple alteration of the film processing conditions two distinct film microstructures can be obtained: one characterized by small spherulitic grains (SG) and one by large grains (LC). Charge transport measurements reveal thermally activated hole transport in both SC and LG film microstructures with two distinct temperature regimes. For temperatures >115 K, gate voltage dependent activation energies (EA) in the range of 25-60 meV are derived. At temperatures

AB - Organic field-effect transistors (OFETs) based upon blends of small molecular semiconductors and polymers show promise for high performance organic electronics applications. Here the charge transport characteristics of high mobility p-channel orpnic transistors based on 2,8-difluoro-5,11- bis(triethylsilylethynyl) anthradithiophene:poly(triarylamine) blend films are investigated. By simple alteration of the film processing conditions two distinct film microstructures can be obtained: one characterized by small spherulitic grains (SG) and one by large grains (LC). Charge transport measurements reveal thermally activated hole transport in both SC and LG film microstructures with two distinct temperature regimes. For temperatures >115 K, gate voltage dependent activation energies (EA) in the range of 25-60 meV are derived. At temperatures

UR - https://onlinelibrary.wiley.com/doi/10.1002/adfm.201000427

UR - http://www.scopus.com/inward/record.url?scp=77955411861&partnerID=8YFLogxK

U2 - 10.1002/adfm.201000427

DO - 10.1002/adfm.201000427

M3 - Article

SN - 1057-9257

VL - 20

SP - 2330

EP - 2337

JO - Advanced Materials for Optics and Electronics

JF - Advanced Materials for Optics and Electronics

IS - 14

ER -

The influence of film morphology in high-mobility small-molecule: Polymer blend organic transistors

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this