Polymer brush as a facile dielectric surface treatment for high-performance, stable, soluble acene-based transistors

Kyungmin Park; Song Hee Park; Eunhye Kim; Jong Dae Kim; Sung Yup An; Ho Sun Lim; Hyun Hwi Lee; Do Hwan Kim; Du Yeol Ryu; Dong Ryeol Lee; Jeong Ho Cho

doi:10.1021/cm1018234

Polymer brush as a facile dielectric surface treatment for high-performance, stable, soluble acene-based transistors

Kyungmin Park, Song Hee Park, Eunhye Kim, Jong Dae Kim, Sung Yup An, Ho Sun Lim, Hyun Hwi Lee, Do Hwan Kim, Du Yeol Ryu, Dong Ryeol Lee, Jeong Ho Cho

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article

34 Citations (Scopus)

Abstract

We developed a facile dielectric surface modification using "grafting to" polymer brushes for high-performance and stable TES-ADT FETs. Polymer brushes were grafted onto oxide substrates by spin-coating and thermal annealing. TES-ADT FETs fabricated on top of the polymer brush layer showed excellent device performance-a field-effect mobility of 0.84 cm²/(V s) and an on/off current ratio of 1×10⁶-that was superior to that of devices using conventional dielectric surface treatments such as HMDS and ODTS. During solvent annealing of the TES-ADT films, the mobile chains of the polymer brushes appear to profoundly influence the diffusion and crystallization of the TES-ADT molecules, while maximizing the π-π interactions along the in-plane direction. Moreover, the polymer brushes yielded excellent electrical and environmental stability because of the complete surface coverage with minimal pinholes and defects.

Original language	English
Pages (from-to)	5377-5382
Number of pages	6
Journal	Chemistry of Materials
Volume	22
Issue number	18
DOIs	https://doi.org/10.1021/cm1018234
Publication status	Published - 2010 Sep 28

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

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10.1021/cm1018234

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title = "Polymer brush as a facile dielectric surface treatment for high-performance, stable, soluble acene-based transistors",

abstract = "We developed a facile dielectric surface modification using {"}grafting to{"} polymer brushes for high-performance and stable TES-ADT FETs. Polymer brushes were grafted onto oxide substrates by spin-coating and thermal annealing. TES-ADT FETs fabricated on top of the polymer brush layer showed excellent device performance-a field-effect mobility of 0.84 cm2/(V s) and an on/off current ratio of 1×106-that was superior to that of devices using conventional dielectric surface treatments such as HMDS and ODTS. During solvent annealing of the TES-ADT films, the mobile chains of the polymer brushes appear to profoundly influence the diffusion and crystallization of the TES-ADT molecules, while maximizing the π-π interactions along the in-plane direction. Moreover, the polymer brushes yielded excellent electrical and environmental stability because of the complete surface coverage with minimal pinholes and defects.",

author = "Kyungmin Park and Park, {Song Hee} and Eunhye Kim and Kim, {Jong Dae} and An, {Sung Yup} and Lim, {Ho Sun} and Lee, {Hyun Hwi} and Kim, {Do Hwan} and Ryu, {Du Yeol} and Lee, {Dong Ryeol} and Cho, {Jeong Ho}",

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Polymer brush as a facile dielectric surface treatment for high-performance, stable, soluble acene-based transistors. / Park, Kyungmin; Park, Song Hee; Kim, Eunhye; Kim, Jong Dae; An, Sung Yup; Lim, Ho Sun; Lee, Hyun Hwi; Kim, Do Hwan; Ryu, Du Yeol; Lee, Dong Ryeol; Cho, Jeong Ho.

In: Chemistry of Materials, Vol. 22, No. 18, 28.09.2010, p. 5377-5382.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Polymer brush as a facile dielectric surface treatment for high-performance, stable, soluble acene-based transistors

AU - Park, Kyungmin

AU - Park, Song Hee

AU - Kim, Eunhye

AU - Kim, Jong Dae

AU - An, Sung Yup

AU - Lim, Ho Sun

AU - Lee, Hyun Hwi

AU - Kim, Do Hwan

AU - Ryu, Du Yeol

AU - Lee, Dong Ryeol

AU - Cho, Jeong Ho

PY - 2010/9/28

Y1 - 2010/9/28

N2 - We developed a facile dielectric surface modification using "grafting to" polymer brushes for high-performance and stable TES-ADT FETs. Polymer brushes were grafted onto oxide substrates by spin-coating and thermal annealing. TES-ADT FETs fabricated on top of the polymer brush layer showed excellent device performance-a field-effect mobility of 0.84 cm2/(V s) and an on/off current ratio of 1×106-that was superior to that of devices using conventional dielectric surface treatments such as HMDS and ODTS. During solvent annealing of the TES-ADT films, the mobile chains of the polymer brushes appear to profoundly influence the diffusion and crystallization of the TES-ADT molecules, while maximizing the π-π interactions along the in-plane direction. Moreover, the polymer brushes yielded excellent electrical and environmental stability because of the complete surface coverage with minimal pinholes and defects.

AB - We developed a facile dielectric surface modification using "grafting to" polymer brushes for high-performance and stable TES-ADT FETs. Polymer brushes were grafted onto oxide substrates by spin-coating and thermal annealing. TES-ADT FETs fabricated on top of the polymer brush layer showed excellent device performance-a field-effect mobility of 0.84 cm2/(V s) and an on/off current ratio of 1×106-that was superior to that of devices using conventional dielectric surface treatments such as HMDS and ODTS. During solvent annealing of the TES-ADT films, the mobile chains of the polymer brushes appear to profoundly influence the diffusion and crystallization of the TES-ADT molecules, while maximizing the π-π interactions along the in-plane direction. Moreover, the polymer brushes yielded excellent electrical and environmental stability because of the complete surface coverage with minimal pinholes and defects.

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