New liquid crystalline solution processable organic semiconductors and their performance in field effect transistors

Maxim Shkunov; Weimin Zhang; David Graham; David Sparrowe; Martin Heeney; Mark Giles; Steve Tierney; Clare Bailey; Iain McCulloch; Theo Kreouzisi

doi:10.1117/12.505831

New liquid crystalline solution processable organic semiconductors and their performance in field effect transistors

Maxim Shkunov^*, Weimin Zhang, David Graham, David Sparrowe, Martin Heeney, Mark Giles, Steve Tierney, Clare Bailey, Iain McCulloch, Theo Kreouzisi

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

8 Scopus citations

Abstract

New polymerisable liquid crystalline organic semiconductors based on small molecule "reactive mesogens" are reported. These molecules, comprising π-conjugated cores with reactive endgroups, were designed, synthesised then solution processed into thin films. The mesogenic morphology was attained thermally and fixed through a post fabrication photopolymerisation reaction. Thermal, optical and electrical properties of these thin films were characterised to reveal details of morphology and molecular orientation. Both bulk (time-of-flight) and surface (field-effect) charge carrier mobilities were measured. The relationship between molecular structure, corresponding macrostructure processability and charge mobility is discussed. Fabrication and characterisation of field-effect transistors based on reactive mesogens are presented and discussed.

Original language	English (US)
Pages (from-to)	181-192
Number of pages	12
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5217
DOIs	https://doi.org/10.1117/12.505831
State	Published - 2003
Externally published	Yes
Event	Organic Field Effect Transistors II - San Diego, CA, United States Duration: Aug 3 2003 → Aug 4 2003

Keywords

Organic field-effect transistors
Organic semiconductors
Photopolymerisation
Reactive mesogens
Small conjugated molecules
Thermotropic liquid crystals
Time-of-flight technique

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.505831

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Shkunov, M., Zhang, W., Graham, D., Sparrowe, D., Heeney, M., Giles, M., Tierney, S., Bailey, C., McCulloch, I., & Kreouzisi, T. (2003). New liquid crystalline solution processable organic semiconductors and their performance in field effect transistors. Proceedings of SPIE - The International Society for Optical Engineering, 5217, 181-192. https://doi.org/10.1117/12.505831

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title = "New liquid crystalline solution processable organic semiconductors and their performance in field effect transistors",

abstract = "New polymerisable liquid crystalline organic semiconductors based on small molecule {"}reactive mesogens{"} are reported. These molecules, comprising π-conjugated cores with reactive endgroups, were designed, synthesised then solution processed into thin films. The mesogenic morphology was attained thermally and fixed through a post fabrication photopolymerisation reaction. Thermal, optical and electrical properties of these thin films were characterised to reveal details of morphology and molecular orientation. Both bulk (time-of-flight) and surface (field-effect) charge carrier mobilities were measured. The relationship between molecular structure, corresponding macrostructure processability and charge mobility is discussed. Fabrication and characterisation of field-effect transistors based on reactive mesogens are presented and discussed.",

keywords = "Organic field-effect transistors, Organic semiconductors, Photopolymerisation, Reactive mesogens, Small conjugated molecules, Thermotropic liquid crystals, Time-of-flight technique",

author = "Maxim Shkunov and Weimin Zhang and David Graham and David Sparrowe and Martin Heeney and Mark Giles and Steve Tierney and Clare Bailey and Iain McCulloch and Theo Kreouzisi",

year = "2003",

doi = "10.1117/12.505831",

language = "English (US)",

volume = "5217",

pages = "181--192",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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note = "Organic Field Effect Transistors II ; Conference date: 03-08-2003 Through 04-08-2003",

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Shkunov, M, Zhang, W, Graham, D, Sparrowe, D, Heeney, M, Giles, M, Tierney, S, Bailey, C, McCulloch, I & Kreouzisi, T 2003, 'New liquid crystalline solution processable organic semiconductors and their performance in field effect transistors', Proceedings of SPIE - The International Society for Optical Engineering, vol. 5217, pp. 181-192. https://doi.org/10.1117/12.505831

TY - JOUR

T1 - New liquid crystalline solution processable organic semiconductors and their performance in field effect transistors

AU - Shkunov, Maxim

AU - Zhang, Weimin

AU - Graham, David

AU - Sparrowe, David

AU - Heeney, Martin

AU - Giles, Mark

AU - Tierney, Steve

AU - Bailey, Clare

AU - McCulloch, Iain

AU - Kreouzisi, Theo

PY - 2003

Y1 - 2003

N2 - New polymerisable liquid crystalline organic semiconductors based on small molecule "reactive mesogens" are reported. These molecules, comprising π-conjugated cores with reactive endgroups, were designed, synthesised then solution processed into thin films. The mesogenic morphology was attained thermally and fixed through a post fabrication photopolymerisation reaction. Thermal, optical and electrical properties of these thin films were characterised to reveal details of morphology and molecular orientation. Both bulk (time-of-flight) and surface (field-effect) charge carrier mobilities were measured. The relationship between molecular structure, corresponding macrostructure processability and charge mobility is discussed. Fabrication and characterisation of field-effect transistors based on reactive mesogens are presented and discussed.

AB - New polymerisable liquid crystalline organic semiconductors based on small molecule "reactive mesogens" are reported. These molecules, comprising π-conjugated cores with reactive endgroups, were designed, synthesised then solution processed into thin films. The mesogenic morphology was attained thermally and fixed through a post fabrication photopolymerisation reaction. Thermal, optical and electrical properties of these thin films were characterised to reveal details of morphology and molecular orientation. Both bulk (time-of-flight) and surface (field-effect) charge carrier mobilities were measured. The relationship between molecular structure, corresponding macrostructure processability and charge mobility is discussed. Fabrication and characterisation of field-effect transistors based on reactive mesogens are presented and discussed.

KW - Organic field-effect transistors

KW - Organic semiconductors

KW - Photopolymerisation

KW - Reactive mesogens

KW - Small conjugated molecules

KW - Thermotropic liquid crystals

KW - Time-of-flight technique

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U2 - 10.1117/12.505831

DO - 10.1117/12.505831

M3 - Conference article

AN - SCOPUS:2342597742

SN - 0277-786X

VL - 5217

SP - 181

EP - 192

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Organic Field Effect Transistors II

Y2 - 3 August 2003 through 4 August 2003

ER -

New liquid crystalline solution processable organic semiconductors and their performance in field effect transistors

Abstract

Keywords

ASJC Scopus subject areas

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