The Dipole Moment Inversion Effects in Self-Assembled Nanodielectrics for Organic Transistors

Binghao Wang; Gabriele Di Carlo; Riccardo Turrisi; Li Zeng; Katie Stallings; Wei Huang; Michael J. Bedzyk; Luca Beverina; Tobin J. Marks; Antonio Facchetti

doi:10.1021/acs.chemmater.7b03397

The Dipole Moment Inversion Effects in Self-Assembled Nanodielectrics for Organic Transistors

Binghao Wang, Gabriele Di Carlo, Riccardo Turrisi, Li Zeng, Katie Stallings, Wei Huang, Michael J. Bedzyk, Luca Beverina^*, Tobin J. Marks, Antonio Facchetti

^*Corresponding author for this work

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

19 Scopus citations

Abstract

We compare and contrast the properties of hybrid organic-inorganic self-assembled nanodielectrics (SANDs) based on alternating layers of solution-processed ZrO_x and either of two phosphonic acid-functionalized azastilbazolium π-units having opposite dipolar orientations. Conventional Zr-SAND and new inverted IZr-SAND are characterized by Kevin probe, optical spectroscopy, capacitance-voltage measurements, AFM, X-ray reflectivity, and electronic structure computation. The molecular dipolar orientation affects thin-film transistor (TFT) threshold and turn-on voltages for devices based on either p-channel pentacene or n-channel copper perfluorophthalocyanine. Specifically, Zr-SAND shifts the threshold and turn-on voltages to more positive values, whereas IZr-SAND shifts them in the opposite direction. Capping these SANDs with -SiMe₃ groups enhances the effect, affording a 1.3 V difference in turn-on voltage for IZr-SAND vs Zr-SAND-gated organic TFTs. Such tunability should facilitate the engineering of more complex circuits.

Original language	English (US)
Pages (from-to)	9974-9980
Number of pages	7
Journal	Chemistry of Materials
Volume	29
Issue number	23
DOIs	https://doi.org/10.1021/acs.chemmater.7b03397
State	Published - Dec 12 2017

Funding

*E-mail: [email protected] (A.F.). *E-mail: [email protected] (T.J.M.). *E-mail: [email protected] (L.B.). ORCID Gabriele Di Carlo: 0000-0002-8782-7945 Li Zeng: 0000-0001-6390-0370 Wei Huang: 0000-0002-0973-8015 Michael J. Bedzyk: 0000-0002-1026-4558 Luca Beverina: 0000-0002-6450-545X Tobin J. Marks: 0000-0001-8771-0141 Funding This work was supported by the BSF (AGMT-2012250), the MRSEC program of the National Science Foundation (DMR-1121262), and ONR (MURI N00014-11-1-0690). A.F. thanks the Shenzhen Peacock Plan project (KQTD20140 630110339343) for financial support. This work made use of the J. B. Cohen X-ray Diffraction Facility, EPIC facility, Keck-II facility, and SPID facility of the NUANCE Center at Northwestern U., which received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF NNCI-1542205); the MRSEC program (NSF DMR-1121262) at the Materials Research Center; the International Institute for Nanotechnology (IIN); the Keck Foundation; and the State of Illinois, through the IIN. Notes The authors declare no competing financial interest.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

Access to Document

10.1021/acs.chemmater.7b03397

Cite this

@article{703f3247e9354e98a533984d29968a85,

title = "The Dipole Moment Inversion Effects in Self-Assembled Nanodielectrics for Organic Transistors",

abstract = "We compare and contrast the properties of hybrid organic-inorganic self-assembled nanodielectrics (SANDs) based on alternating layers of solution-processed ZrOx and either of two phosphonic acid-functionalized azastilbazolium π-units having opposite dipolar orientations. Conventional Zr-SAND and new inverted IZr-SAND are characterized by Kevin probe, optical spectroscopy, capacitance-voltage measurements, AFM, X-ray reflectivity, and electronic structure computation. The molecular dipolar orientation affects thin-film transistor (TFT) threshold and turn-on voltages for devices based on either p-channel pentacene or n-channel copper perfluorophthalocyanine. Specifically, Zr-SAND shifts the threshold and turn-on voltages to more positive values, whereas IZr-SAND shifts them in the opposite direction. Capping these SANDs with -SiMe3 groups enhances the effect, affording a 1.3 V difference in turn-on voltage for IZr-SAND vs Zr-SAND-gated organic TFTs. Such tunability should facilitate the engineering of more complex circuits.",

author = "Binghao Wang and {Di Carlo}, Gabriele and Riccardo Turrisi and Li Zeng and Katie Stallings and Wei Huang and Bedzyk, {Michael J.} and Luca Beverina and Marks, {Tobin J.} and Antonio Facchetti",

note = "Funding Information: *E-mail: [email protected] (A.F.). *E-mail: [email protected] (T.J.M.). *E-mail: [email protected] (L.B.). ORCID Gabriele Di Carlo: 0000-0002-8782-7945 Li Zeng: 0000-0001-6390-0370 Wei Huang: 0000-0002-0973-8015 Michael J. Bedzyk: 0000-0002-1026-4558 Luca Beverina: 0000-0002-6450-545X Tobin J. Marks: 0000-0001-8771-0141 Funding This work was supported by the BSF (AGMT-2012250), the MRSEC program of the National Science Foundation (DMR-1121262), and ONR (MURI N00014-11-1-0690). A.F. thanks the Shenzhen Peacock Plan project (KQTD20140 630110339343) for financial support. This work made use of the J. B. Cohen X-ray Diffraction Facility, EPIC facility, Keck-II facility, and SPID facility of the NUANCE Center at Northwestern U., which received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF NNCI-1542205); the MRSEC program (NSF DMR-1121262) at the Materials Research Center; the International Institute for Nanotechnology (IIN); the Keck Foundation; and the State of Illinois, through the IIN. Notes The authors declare no competing financial interest. Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

month = dec,

day = "12",

doi = "10.1021/acs.chemmater.7b03397",

language = "English (US)",

volume = "29",

pages = "9974--9980",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

number = "23",

}

TY - JOUR

T1 - The Dipole Moment Inversion Effects in Self-Assembled Nanodielectrics for Organic Transistors

AU - Wang, Binghao

AU - Di Carlo, Gabriele

AU - Turrisi, Riccardo

AU - Zeng, Li

AU - Stallings, Katie

AU - Huang, Wei

AU - Bedzyk, Michael J.

AU - Beverina, Luca

AU - Marks, Tobin J.

AU - Facchetti, Antonio

N1 - Funding Information: *E-mail: [email protected] (A.F.). *E-mail: [email protected] (T.J.M.). *E-mail: [email protected] (L.B.). ORCID Gabriele Di Carlo: 0000-0002-8782-7945 Li Zeng: 0000-0001-6390-0370 Wei Huang: 0000-0002-0973-8015 Michael J. Bedzyk: 0000-0002-1026-4558 Luca Beverina: 0000-0002-6450-545X Tobin J. Marks: 0000-0001-8771-0141 Funding This work was supported by the BSF (AGMT-2012250), the MRSEC program of the National Science Foundation (DMR-1121262), and ONR (MURI N00014-11-1-0690). A.F. thanks the Shenzhen Peacock Plan project (KQTD20140 630110339343) for financial support. This work made use of the J. B. Cohen X-ray Diffraction Facility, EPIC facility, Keck-II facility, and SPID facility of the NUANCE Center at Northwestern U., which received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF NNCI-1542205); the MRSEC program (NSF DMR-1121262) at the Materials Research Center; the International Institute for Nanotechnology (IIN); the Keck Foundation; and the State of Illinois, through the IIN. Notes The authors declare no competing financial interest. Publisher Copyright: © 2017 American Chemical Society.

PY - 2017/12/12

Y1 - 2017/12/12

N2 - We compare and contrast the properties of hybrid organic-inorganic self-assembled nanodielectrics (SANDs) based on alternating layers of solution-processed ZrOx and either of two phosphonic acid-functionalized azastilbazolium π-units having opposite dipolar orientations. Conventional Zr-SAND and new inverted IZr-SAND are characterized by Kevin probe, optical spectroscopy, capacitance-voltage measurements, AFM, X-ray reflectivity, and electronic structure computation. The molecular dipolar orientation affects thin-film transistor (TFT) threshold and turn-on voltages for devices based on either p-channel pentacene or n-channel copper perfluorophthalocyanine. Specifically, Zr-SAND shifts the threshold and turn-on voltages to more positive values, whereas IZr-SAND shifts them in the opposite direction. Capping these SANDs with -SiMe3 groups enhances the effect, affording a 1.3 V difference in turn-on voltage for IZr-SAND vs Zr-SAND-gated organic TFTs. Such tunability should facilitate the engineering of more complex circuits.

AB - We compare and contrast the properties of hybrid organic-inorganic self-assembled nanodielectrics (SANDs) based on alternating layers of solution-processed ZrOx and either of two phosphonic acid-functionalized azastilbazolium π-units having opposite dipolar orientations. Conventional Zr-SAND and new inverted IZr-SAND are characterized by Kevin probe, optical spectroscopy, capacitance-voltage measurements, AFM, X-ray reflectivity, and electronic structure computation. The molecular dipolar orientation affects thin-film transistor (TFT) threshold and turn-on voltages for devices based on either p-channel pentacene or n-channel copper perfluorophthalocyanine. Specifically, Zr-SAND shifts the threshold and turn-on voltages to more positive values, whereas IZr-SAND shifts them in the opposite direction. Capping these SANDs with -SiMe3 groups enhances the effect, affording a 1.3 V difference in turn-on voltage for IZr-SAND vs Zr-SAND-gated organic TFTs. Such tunability should facilitate the engineering of more complex circuits.

UR - http://www.scopus.com/inward/record.url?scp=85038216188&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038216188&partnerID=8YFLogxK

U2 - 10.1021/acs.chemmater.7b03397

DO - 10.1021/acs.chemmater.7b03397

M3 - Article

AN - SCOPUS:85038216188

SN - 0897-4756

VL - 29

SP - 9974

EP - 9980

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 23

ER -

The Dipole Moment Inversion Effects in Self-Assembled Nanodielectrics for Organic Transistors

Abstract

Funding

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

CCDC 1817468: Experimental Crystal Structure Determination

Cite this

The Dipole Moment Inversion Effects in Self-Assembled Nanodielectrics for Organic Transistors

Abstract

Funding

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Datasets

CCDC 1817468: Experimental Crystal Structure Determination

Cite this