Dynamic operation of liquid crystal cell with inherently nanogroove-featured aligned carbon nanotube sheets

Thuy Kieu Truong; Ji Hyun Park; MD Asiqur Rahman; Martin Urbanski; Eun Sung Kim; Giusy Scalia; Dongseok Suh

doi:10.1016/j.cap.2018.11.018

Dynamic operation of liquid crystal cell with inherently nanogroove-featured aligned carbon nanotube sheets

Thuy Kieu Truong, Ji Hyun Park, MD Asiqur Rahman, Martin Urbanski, Eun Sung Kim, Giusy Scalia, Dongseok Suh

Department of Physics

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

8 Scopus citations

Abstract

The use of a highly aligned carbon nanotube (CNT) sheet as a multifunctional constituent for liquid crystal (LC) displays and electro-optic LC applications is assessed. The CNT sheet can perform a dual function: one is an alignment layer for LCs, replacing the commonly used rubbed polyimide film, and the other is a transparent conductive layer, taking the place of indium tin oxide. The hydrophobic treatment improved the adhesion quality between aligned CNT bundles and the glass substrate, which helps to preserve the inherently aligned nanogroove morphology of transparent CNT sheets. The test LC display cells, comprising 4-cyano-4′-pentylbiphenyl molecules sandwiched between CNT-sheet-on-glass substrates, demonstrate the operation characteristics comparable to that of the conventional cell under temperature variation and ac electric field of 1 kHz. The results offer a possibility of deploying multifunctional CNT-sheet alignment layers in LC-based devices, especially in the future flexible display applications.

Original language	English
Pages (from-to)	162-167
Number of pages	6
Journal	Current Applied Physics
Volume	19
Issue number	2
DOIs	https://doi.org/10.1016/j.cap.2018.11.018
State	Published - Feb 2019

Bibliographical note

Funding Information:
T.-K.T. and J.H.P. contributed equally to this work. This work was supported by the Basic Science Research Program ( NRF-2016R1A2B2012336 ) and the Global Research and Development Center Program ( NRF-2018K1A4A3A01064272 ) through the National Research Foundation of Korea funded by the Ministry of Science and ICT , Republic of Korea.

Publisher Copyright:
© 2018 Korean Physical Society

Keywords

Aligned carbon nanotube sheets
Indium-tin oxide transparent conductor
Liquid crystal cells
Polyimide alignment layer for liquid crystal display

Access to Document

10.1016/j.cap.2018.11.018

Cite this

@article{7f0a52d628344359bac8c0a6a8476f0a,

title = "Dynamic operation of liquid crystal cell with inherently nanogroove-featured aligned carbon nanotube sheets",

abstract = "The use of a highly aligned carbon nanotube (CNT) sheet as a multifunctional constituent for liquid crystal (LC) displays and electro-optic LC applications is assessed. The CNT sheet can perform a dual function: one is an alignment layer for LCs, replacing the commonly used rubbed polyimide film, and the other is a transparent conductive layer, taking the place of indium tin oxide. The hydrophobic treatment improved the adhesion quality between aligned CNT bundles and the glass substrate, which helps to preserve the inherently aligned nanogroove morphology of transparent CNT sheets. The test LC display cells, comprising 4-cyano-4′-pentylbiphenyl molecules sandwiched between CNT-sheet-on-glass substrates, demonstrate the operation characteristics comparable to that of the conventional cell under temperature variation and ac electric field of 1 kHz. The results offer a possibility of deploying multifunctional CNT-sheet alignment layers in LC-based devices, especially in the future flexible display applications.",

keywords = "Aligned carbon nanotube sheets, Indium-tin oxide transparent conductor, Liquid crystal cells, Polyimide alignment layer for liquid crystal display",

author = "Truong, {Thuy Kieu} and Park, {Ji Hyun} and Rahman, {MD Asiqur} and Martin Urbanski and Kim, {Eun Sung} and Giusy Scalia and Dongseok Suh",

note = "Funding Information: T.-K.T. and J.H.P. contributed equally to this work. This work was supported by the Basic Science Research Program ( NRF-2016R1A2B2012336 ) and the Global Research and Development Center Program ( NRF-2018K1A4A3A01064272 ) through the National Research Foundation of Korea funded by the Ministry of Science and ICT , Republic of Korea. Publisher Copyright: {\textcopyright} 2018 Korean Physical Society",

year = "2019",

month = feb,

doi = "10.1016/j.cap.2018.11.018",

language = "English",

volume = "19",

pages = "162--167",

journal = "Current Applied Physics",

issn = "1567-1739",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - Dynamic operation of liquid crystal cell with inherently nanogroove-featured aligned carbon nanotube sheets

AU - Truong, Thuy Kieu

AU - Park, Ji Hyun

AU - Rahman, MD Asiqur

AU - Urbanski, Martin

AU - Kim, Eun Sung

AU - Scalia, Giusy

AU - Suh, Dongseok

N1 - Funding Information: T.-K.T. and J.H.P. contributed equally to this work. This work was supported by the Basic Science Research Program ( NRF-2016R1A2B2012336 ) and the Global Research and Development Center Program ( NRF-2018K1A4A3A01064272 ) through the National Research Foundation of Korea funded by the Ministry of Science and ICT , Republic of Korea. Publisher Copyright: © 2018 Korean Physical Society

PY - 2019/2

Y1 - 2019/2

N2 - The use of a highly aligned carbon nanotube (CNT) sheet as a multifunctional constituent for liquid crystal (LC) displays and electro-optic LC applications is assessed. The CNT sheet can perform a dual function: one is an alignment layer for LCs, replacing the commonly used rubbed polyimide film, and the other is a transparent conductive layer, taking the place of indium tin oxide. The hydrophobic treatment improved the adhesion quality between aligned CNT bundles and the glass substrate, which helps to preserve the inherently aligned nanogroove morphology of transparent CNT sheets. The test LC display cells, comprising 4-cyano-4′-pentylbiphenyl molecules sandwiched between CNT-sheet-on-glass substrates, demonstrate the operation characteristics comparable to that of the conventional cell under temperature variation and ac electric field of 1 kHz. The results offer a possibility of deploying multifunctional CNT-sheet alignment layers in LC-based devices, especially in the future flexible display applications.

AB - The use of a highly aligned carbon nanotube (CNT) sheet as a multifunctional constituent for liquid crystal (LC) displays and electro-optic LC applications is assessed. The CNT sheet can perform a dual function: one is an alignment layer for LCs, replacing the commonly used rubbed polyimide film, and the other is a transparent conductive layer, taking the place of indium tin oxide. The hydrophobic treatment improved the adhesion quality between aligned CNT bundles and the glass substrate, which helps to preserve the inherently aligned nanogroove morphology of transparent CNT sheets. The test LC display cells, comprising 4-cyano-4′-pentylbiphenyl molecules sandwiched between CNT-sheet-on-glass substrates, demonstrate the operation characteristics comparable to that of the conventional cell under temperature variation and ac electric field of 1 kHz. The results offer a possibility of deploying multifunctional CNT-sheet alignment layers in LC-based devices, especially in the future flexible display applications.

KW - Aligned carbon nanotube sheets

KW - Indium-tin oxide transparent conductor

KW - Liquid crystal cells

KW - Polyimide alignment layer for liquid crystal display

UR - http://www.scopus.com/inward/record.url?scp=85058375125&partnerID=8YFLogxK

U2 - 10.1016/j.cap.2018.11.018

DO - 10.1016/j.cap.2018.11.018

M3 - Article

AN - SCOPUS:85058375125

SN - 1567-1739

VL - 19

SP - 162

EP - 167

JO - Current Applied Physics

JF - Current Applied Physics

IS - 2

ER -

Dynamic operation of liquid crystal cell with inherently nanogroove-featured aligned carbon nanotube sheets

Abstract

Bibliographical note

Keywords

Access to Document

Fingerprint

Cite this