Preparation of surface-tethered polymer layer on inorganic substrates by photoreactive self-assembled monolayer

Seong Ho Kim; Hanae Ohtsuka; Maria Celeste R Tria; Kuniaki Tanaka; Rigoberto C. Advincula; Hiroaki Usui

doi:10.1016/j.tsf.2013.05.164

Preparation of surface-tethered polymer layer on inorganic substrates by photoreactive self-assembled monolayer

Seong Ho Kim, Hanae Ohtsuka, Maria Celeste R Tria, Kuniaki Tanaka, Rigoberto C. Advincula, Hiroaki Usui

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

6 Citations (Scopus)

Abstract

A self-assembled monolayer (SAM) that has benzophenone (BP) terminal group was prepared on Si and indium-tin oxide (ITO) substrates, on which poly(9-vinyl carbazol) (PVK) was spin-coated and then irradiated with ultraviolet (UV) light. Upon UV irradiation, the BP unit reacted with the PVK backbone, yielding a crosslinked PVK layer that was covalently tethered to the substrate surface. Using this procedure, a patterned thin film of PVK was obtained by irradiating UV light through a photomask and then rinsing in chloroform. When polystylene (PSt) was spin-coated on the BP-SAM, only a thin interfacial layer was tethered by UV irradiation because PSt does not crosslink upon UV irradiation. The BP-SAM improved the adhesion strength between the PVK layer and ITO substrate without reducing the carrier injection from ITO to PVK. The photoreactive BP-SAM appeared to be an effective method to improve the interface between an inorganic electrode and a polymer layer deposited on its surface.

Original language	English
Pages (from-to)	78-83
Number of pages	6
Journal	Thin Solid Films
Volume	554
DOIs	https://doi.org/10.1016/j.tsf.2013.05.164
Publication status	Published - 2014 Mar 3
Externally published	Yes

Keywords

Benzophenone
Interface control
Patterning
Poly(9-vinylcarbazole)
Self-assembled monolayer

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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title = "Preparation of surface-tethered polymer layer on inorganic substrates by photoreactive self-assembled monolayer",

abstract = "A self-assembled monolayer (SAM) that has benzophenone (BP) terminal group was prepared on Si and indium-tin oxide (ITO) substrates, on which poly(9-vinyl carbazol) (PVK) was spin-coated and then irradiated with ultraviolet (UV) light. Upon UV irradiation, the BP unit reacted with the PVK backbone, yielding a crosslinked PVK layer that was covalently tethered to the substrate surface. Using this procedure, a patterned thin film of PVK was obtained by irradiating UV light through a photomask and then rinsing in chloroform. When polystylene (PSt) was spin-coated on the BP-SAM, only a thin interfacial layer was tethered by UV irradiation because PSt does not crosslink upon UV irradiation. The BP-SAM improved the adhesion strength between the PVK layer and ITO substrate without reducing the carrier injection from ITO to PVK. The photoreactive BP-SAM appeared to be an effective method to improve the interface between an inorganic electrode and a polymer layer deposited on its surface.",

keywords = "Benzophenone, Interface control, Patterning, Poly(9-vinylcarbazole), Self-assembled monolayer",

author = "Kim, {Seong Ho} and Hanae Ohtsuka and Tria, {Maria Celeste R} and Kuniaki Tanaka and Advincula, {Rigoberto C.} and Hiroaki Usui",

year = "2014",

month = mar,

day = "3",

doi = "10.1016/j.tsf.2013.05.164",

language = "English",

volume = "554",

pages = "78--83",

journal = "Thin Solid Films",

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T1 - Preparation of surface-tethered polymer layer on inorganic substrates by photoreactive self-assembled monolayer

AU - Kim, Seong Ho

AU - Ohtsuka, Hanae

AU - Tria, Maria Celeste R

AU - Tanaka, Kuniaki

AU - Advincula, Rigoberto C.

AU - Usui, Hiroaki

PY - 2014/3/3

Y1 - 2014/3/3

N2 - A self-assembled monolayer (SAM) that has benzophenone (BP) terminal group was prepared on Si and indium-tin oxide (ITO) substrates, on which poly(9-vinyl carbazol) (PVK) was spin-coated and then irradiated with ultraviolet (UV) light. Upon UV irradiation, the BP unit reacted with the PVK backbone, yielding a crosslinked PVK layer that was covalently tethered to the substrate surface. Using this procedure, a patterned thin film of PVK was obtained by irradiating UV light through a photomask and then rinsing in chloroform. When polystylene (PSt) was spin-coated on the BP-SAM, only a thin interfacial layer was tethered by UV irradiation because PSt does not crosslink upon UV irradiation. The BP-SAM improved the adhesion strength between the PVK layer and ITO substrate without reducing the carrier injection from ITO to PVK. The photoreactive BP-SAM appeared to be an effective method to improve the interface between an inorganic electrode and a polymer layer deposited on its surface.

AB - A self-assembled monolayer (SAM) that has benzophenone (BP) terminal group was prepared on Si and indium-tin oxide (ITO) substrates, on which poly(9-vinyl carbazol) (PVK) was spin-coated and then irradiated with ultraviolet (UV) light. Upon UV irradiation, the BP unit reacted with the PVK backbone, yielding a crosslinked PVK layer that was covalently tethered to the substrate surface. Using this procedure, a patterned thin film of PVK was obtained by irradiating UV light through a photomask and then rinsing in chloroform. When polystylene (PSt) was spin-coated on the BP-SAM, only a thin interfacial layer was tethered by UV irradiation because PSt does not crosslink upon UV irradiation. The BP-SAM improved the adhesion strength between the PVK layer and ITO substrate without reducing the carrier injection from ITO to PVK. The photoreactive BP-SAM appeared to be an effective method to improve the interface between an inorganic electrode and a polymer layer deposited on its surface.

KW - Benzophenone

KW - Interface control

KW - Patterning

KW - Poly(9-vinylcarbazole)

KW - Self-assembled monolayer

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JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

ER -

Preparation of surface-tethered polymer layer on inorganic substrates by photoreactive self-assembled monolayer

Abstract

Keywords

ASJC Scopus subject areas

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