Channel length dependent characterisations of organic thin film transistors with solution processable gadolinium phthalocyanine derivatives

Seema Barard; Debdyuti  Mukherjee; Sujoy  Sarkar; Theo Kreouzis; Isabelle Chambrier; Andy N. Cammidge; Asim K. Ray

doi:10.1007/s10854-019-02486-4

Channel length dependent characterisations of organic thin film transistors with solution processable gadolinium phthalocyanine derivatives

Seema Barard, Debdyuti Mukherjee, Sujoy Sarkar, Theo Kreouzis, Isabelle Chambrier, Andy N. Cammidge, Asim K. Ray

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

4 Citations (Scopus)

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Abstract

Spin-coated 52-nm-thick films of newly synthesised gadolinium liquid crystalline bisphthalocyanine sandwich (GdPc ₂) complexes with octyl chains non-peripheral positions have been successfully employed as active layers for bottom-gate organic field effect transistors having both short (5μm) and long (20μm) channels. The scaling down of the channel length (L) decreases the field effect mobility due to the increase in the contact resistance between the gold electrodes and the GdPc ₂ semiconducting layer. Values of on–off ratio and sub-threshold voltage swing are higher nearly one order of magnitude for L=5μm than those for L=20μm.

Original language	English
Pages (from-to)	265-273
Number of pages	9
Journal	Journal of Materials Science: Materials in Electronics
Volume	31
Issue number	1
Early online date	21 Nov 2019
DOIs	https://doi.org/10.1007/s10854-019-02486-4
Publication status	Published - Jan 2020

Keywords

BEHAVIOR
BISPHTHALOCYANINE
COPPER PHTHALOCYANINE
FIELD-EFFECT TRANSISTORS
MOBILITY
MODEL
SEMICONDUCTOR
TRANSPORT

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10.1007/s10854-019-02486-4Licence: CC BY

Published_VersionFinal published version, 2.11 MBLicence: CC BY

Cite this

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title = "Channel length dependent characterisations of organic thin film transistors with solution processable gadolinium phthalocyanine derivatives",

abstract = "Spin-coated 52-nm-thick films of newly synthesised gadolinium liquid crystalline bisphthalocyanine sandwich (GdPc 2) complexes with octyl chains non-peripheral positions have been successfully employed as active layers for bottom-gate organic field effect transistors having both short (5μm) and long (20μm) channels. The scaling down of the channel length (L) decreases the field effect mobility due to the increase in the contact resistance between the gold electrodes and the GdPc 2 semiconducting layer. Values of on–off ratio and sub-threshold voltage swing are higher nearly one order of magnitude for L=5μm than those for L=20μm. ",

keywords = "BEHAVIOR, BISPHTHALOCYANINE, COPPER PHTHALOCYANINE, FIELD-EFFECT TRANSISTORS, MOBILITY, MODEL, SEMICONDUCTOR, TRANSPORT",

author = "Seema Barard and Debdyuti Mukherjee and Sujoy Sarkar and Theo Kreouzis and Isabelle Chambrier and Cammidge, {Andy N.} and Ray, {Asim K.}",

year = "2020",

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doi = "10.1007/s10854-019-02486-4",

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volume = "31",

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AU - Barard, Seema

AU - Mukherjee, Debdyuti

AU - Sarkar, Sujoy

AU - Kreouzis, Theo

AU - Chambrier, Isabelle

AU - Cammidge, Andy N.

AU - Ray, Asim K.

PY - 2020/1

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AB - Spin-coated 52-nm-thick films of newly synthesised gadolinium liquid crystalline bisphthalocyanine sandwich (GdPc 2) complexes with octyl chains non-peripheral positions have been successfully employed as active layers for bottom-gate organic field effect transistors having both short (5μm) and long (20μm) channels. The scaling down of the channel length (L) decreases the field effect mobility due to the increase in the contact resistance between the gold electrodes and the GdPc 2 semiconducting layer. Values of on–off ratio and sub-threshold voltage swing are higher nearly one order of magnitude for L=5μm than those for L=20μm.

KW - BEHAVIOR

KW - BISPHTHALOCYANINE

KW - COPPER PHTHALOCYANINE

KW - FIELD-EFFECT TRANSISTORS

KW - MOBILITY

KW - MODEL

KW - SEMICONDUCTOR

KW - TRANSPORT

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Channel length dependent characterisations of organic thin film transistors with solution processable gadolinium phthalocyanine derivatives

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Andy Cammidge

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Channel length dependent characterisations of organic thin film transistors with solution processable gadolinium phthalocyanine derivatives

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Andy Cammidge

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