Self-Assembled Photochromic Molecular Dipoles for High-Performance Polymer Thin-Film Transistors

Satyaprasad P. Senanayak; Vinod K. Sangwan; Julian J. McMorrow; Ken Everaerts; Zhihua Chen; Antonio Facchetti; Mark C. Hersam; Tobin J. Marks; K. S. Narayan

doi:10.1021/acsami.8b05401

Self-Assembled Photochromic Molecular Dipoles for High-Performance Polymer Thin-Film Transistors

Satyaprasad P. Senanayak, Vinod K. Sangwan, Julian J. McMorrow, Ken Everaerts, Zhihua Chen, Antonio Facchetti^*, Mark C. Hersam, Tobin J. Marks, K. S. Narayan

^*Corresponding author for this work

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

12 Scopus citations

Abstract

The development of high-performance multifunctional polymer-based electronic circuits is a major step toward future flexible electronics. Here, we demonstrate a tunable approach to fabricate such devices based on rationally designed dielectric super-lattice structures with photochromic azobenzene molecules. These nanodielectrics possessing ionic, molecular, and atomic polarization are utilized in polymer thin-film transistors (TFTs) to realize high-performance electronics with a p-type field-effect mobility (μ_FET) exceeding 2 cm² V^-1 s^-1. A crossover in the transport mechanism from electrostatic dipolar disorder to ionic-induced disorder is observed in the transistor characteristics over a range of temperatures. The facile supramolecular design allows the possibility to optically control the extent of molecular and ionic polarization in the ultrathin nanodielectric. Thus, we demonstrate a 3-fold increase in the capacitance from 0.1 to 0.34 μF/cm², which results in a 200% increase in TFT channel current.

Original language	English (US)
Pages (from-to)	21492-21498
Number of pages	7
Journal	ACS Applied Materials and Interfaces
Volume	10
Issue number	25
DOIs	https://doi.org/10.1021/acsami.8b05401
State	Published - Jun 27 2018

Keywords

nanodielectrics
photochromism
phototransistors
polymer transistors
self-assembly

ASJC Scopus subject areas

Materials Science(all)

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10.1021/acsami.8b05401

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@article{188a61923e404069a8ef0857cf5c8694,

title = "Self-Assembled Photochromic Molecular Dipoles for High-Performance Polymer Thin-Film Transistors",

abstract = "The development of high-performance multifunctional polymer-based electronic circuits is a major step toward future flexible electronics. Here, we demonstrate a tunable approach to fabricate such devices based on rationally designed dielectric super-lattice structures with photochromic azobenzene molecules. These nanodielectrics possessing ionic, molecular, and atomic polarization are utilized in polymer thin-film transistors (TFTs) to realize high-performance electronics with a p-type field-effect mobility (μFET) exceeding 2 cm2 V-1 s-1. A crossover in the transport mechanism from electrostatic dipolar disorder to ionic-induced disorder is observed in the transistor characteristics over a range of temperatures. The facile supramolecular design allows the possibility to optically control the extent of molecular and ionic polarization in the ultrathin nanodielectric. Thus, we demonstrate a 3-fold increase in the capacitance from 0.1 to 0.34 μF/cm2, which results in a 200% increase in TFT channel current.",

keywords = "nanodielectrics, photochromism, phototransistors, polymer transistors, self-assembly",

author = "Senanayak, {Satyaprasad P.} and Sangwan, {Vinod K.} and McMorrow, {Julian J.} and Ken Everaerts and Zhihua Chen and Antonio Facchetti and Hersam, {Mark C.} and Marks, {Tobin J.} and Narayan, {K. S.}",

note = "Funding Information: S.P.S. acknowledges Dr. Chidambar Kulkarni and Prof. E. W. Meijer, Eindhoven University of Technology, for stimulating discussions of photochromism. S.P.S. acknowledges funding from CSIR-HRDG. K.S.N. acknowledges funding from DST, Governement of India. This research was also supported by IUSSTF Funding and by the National Science Foundation through the Northwestern University Materials Research Science and Engineering Center (NSF DMR-1720139). Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

year = "2018",

month = jun,

day = "27",

doi = "10.1021/acsami.8b05401",

language = "English (US)",

volume = "10",

pages = "21492--21498",

journal = "ACS applied materials & interfaces",

issn = "1944-8244",

publisher = "American Chemical Society",

number = "25",

}

TY - JOUR

T1 - Self-Assembled Photochromic Molecular Dipoles for High-Performance Polymer Thin-Film Transistors

AU - Senanayak, Satyaprasad P.

AU - Sangwan, Vinod K.

AU - McMorrow, Julian J.

AU - Everaerts, Ken

AU - Chen, Zhihua

AU - Facchetti, Antonio

AU - Hersam, Mark C.

AU - Marks, Tobin J.

AU - Narayan, K. S.

N1 - Funding Information: S.P.S. acknowledges Dr. Chidambar Kulkarni and Prof. E. W. Meijer, Eindhoven University of Technology, for stimulating discussions of photochromism. S.P.S. acknowledges funding from CSIR-HRDG. K.S.N. acknowledges funding from DST, Governement of India. This research was also supported by IUSSTF Funding and by the National Science Foundation through the Northwestern University Materials Research Science and Engineering Center (NSF DMR-1720139). Publisher Copyright: © 2018 American Chemical Society.

PY - 2018/6/27

Y1 - 2018/6/27

N2 - The development of high-performance multifunctional polymer-based electronic circuits is a major step toward future flexible electronics. Here, we demonstrate a tunable approach to fabricate such devices based on rationally designed dielectric super-lattice structures with photochromic azobenzene molecules. These nanodielectrics possessing ionic, molecular, and atomic polarization are utilized in polymer thin-film transistors (TFTs) to realize high-performance electronics with a p-type field-effect mobility (μFET) exceeding 2 cm2 V-1 s-1. A crossover in the transport mechanism from electrostatic dipolar disorder to ionic-induced disorder is observed in the transistor characteristics over a range of temperatures. The facile supramolecular design allows the possibility to optically control the extent of molecular and ionic polarization in the ultrathin nanodielectric. Thus, we demonstrate a 3-fold increase in the capacitance from 0.1 to 0.34 μF/cm2, which results in a 200% increase in TFT channel current.

AB - The development of high-performance multifunctional polymer-based electronic circuits is a major step toward future flexible electronics. Here, we demonstrate a tunable approach to fabricate such devices based on rationally designed dielectric super-lattice structures with photochromic azobenzene molecules. These nanodielectrics possessing ionic, molecular, and atomic polarization are utilized in polymer thin-film transistors (TFTs) to realize high-performance electronics with a p-type field-effect mobility (μFET) exceeding 2 cm2 V-1 s-1. A crossover in the transport mechanism from electrostatic dipolar disorder to ionic-induced disorder is observed in the transistor characteristics over a range of temperatures. The facile supramolecular design allows the possibility to optically control the extent of molecular and ionic polarization in the ultrathin nanodielectric. Thus, we demonstrate a 3-fold increase in the capacitance from 0.1 to 0.34 μF/cm2, which results in a 200% increase in TFT channel current.

KW - nanodielectrics

KW - photochromism

KW - phototransistors

KW - polymer transistors

KW - self-assembly

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JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

IS - 25

ER -

Self-Assembled Photochromic Molecular Dipoles for High-Performance Polymer Thin-Film Transistors

Abstract

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