Alignment of liquid crystal molecules on solution-derived zinc-tin-oxide films via ion beam irradiation

Hong Gyu Park; Hae Chang Jeong; Ju Hwan Lee; Sang Bok Jang; Byeong Yun Oh; Jeong Min Han; Dae Shik Seo

doi:10.1016/j.matchemphys.2016.01.068

Alignment of liquid crystal molecules on solution-derived zinc-tin-oxide films via ion beam irradiation

Hong Gyu Park, Hae Chang Jeong, Ju Hwan Lee, Sang Bok Jang, Byeong Yun Oh, Jeong Min Han, Dae Shik Seo

Department of Electrical and Electronic Engineering

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

3 Citations (Scopus)

Abstract

We present the characteristics of annealing temperature-dependent, zinc-tin-oxide (ZTO) films deposited by a solution process for application in liquid crystal displays (LCDs). ZTO surfaces supported homogeneously-aligned liquid crystal (LC) molecules based on an ion beam irradiation system. Uniform LC alignment and a precise pretilt angle were obtained at an annealing temperature greater than 300 °C. The oxidation of ZTO films was confirmed using field-emission-scanning electron microscopy and X-ray photoelectron spectroscopy. The electro-optical characteristics of electrically controlled birefringence (ECB) cells based on the ZTO films were superior to those based on polyimide. Especially, IB-irradiated ZTO films exhibited superior performance with respect to response time. This result indicates that this approach will allow for the fabrication of advanced LCDs with high performance.

Original language	English
Pages (from-to)	186-191
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	173
DOIs	https://doi.org/10.1016/j.matchemphys.2016.01.068
Publication status	Published - 2016 Apr 15

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics

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10.1016/j.matchemphys.2016.01.068

Cite this

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title = "Alignment of liquid crystal molecules on solution-derived zinc-tin-oxide films via ion beam irradiation",

abstract = "We present the characteristics of annealing temperature-dependent, zinc-tin-oxide (ZTO) films deposited by a solution process for application in liquid crystal displays (LCDs). ZTO surfaces supported homogeneously-aligned liquid crystal (LC) molecules based on an ion beam irradiation system. Uniform LC alignment and a precise pretilt angle were obtained at an annealing temperature greater than 300 °C. The oxidation of ZTO films was confirmed using field-emission-scanning electron microscopy and X-ray photoelectron spectroscopy. The electro-optical characteristics of electrically controlled birefringence (ECB) cells based on the ZTO films were superior to those based on polyimide. Especially, IB-irradiated ZTO films exhibited superior performance with respect to response time. This result indicates that this approach will allow for the fabrication of advanced LCDs with high performance.",

author = "Park, {Hong Gyu} and Jeong, {Hae Chang} and Lee, {Ju Hwan} and Jang, {Sang Bok} and Oh, {Byeong Yun} and Han, {Jeong Min} and Seo, {Dae Shik}",

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doi = "10.1016/j.matchemphys.2016.01.068",

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T1 - Alignment of liquid crystal molecules on solution-derived zinc-tin-oxide films via ion beam irradiation

AU - Park, Hong Gyu

AU - Jeong, Hae Chang

AU - Lee, Ju Hwan

AU - Jang, Sang Bok

AU - Oh, Byeong Yun

AU - Han, Jeong Min

AU - Seo, Dae Shik

PY - 2016/4/15

Y1 - 2016/4/15

N2 - We present the characteristics of annealing temperature-dependent, zinc-tin-oxide (ZTO) films deposited by a solution process for application in liquid crystal displays (LCDs). ZTO surfaces supported homogeneously-aligned liquid crystal (LC) molecules based on an ion beam irradiation system. Uniform LC alignment and a precise pretilt angle were obtained at an annealing temperature greater than 300 °C. The oxidation of ZTO films was confirmed using field-emission-scanning electron microscopy and X-ray photoelectron spectroscopy. The electro-optical characteristics of electrically controlled birefringence (ECB) cells based on the ZTO films were superior to those based on polyimide. Especially, IB-irradiated ZTO films exhibited superior performance with respect to response time. This result indicates that this approach will allow for the fabrication of advanced LCDs with high performance.

AB - We present the characteristics of annealing temperature-dependent, zinc-tin-oxide (ZTO) films deposited by a solution process for application in liquid crystal displays (LCDs). ZTO surfaces supported homogeneously-aligned liquid crystal (LC) molecules based on an ion beam irradiation system. Uniform LC alignment and a precise pretilt angle were obtained at an annealing temperature greater than 300 °C. The oxidation of ZTO films was confirmed using field-emission-scanning electron microscopy and X-ray photoelectron spectroscopy. The electro-optical characteristics of electrically controlled birefringence (ECB) cells based on the ZTO films were superior to those based on polyimide. Especially, IB-irradiated ZTO films exhibited superior performance with respect to response time. This result indicates that this approach will allow for the fabrication of advanced LCDs with high performance.

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JO - Materials Chemistry and Physics

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Alignment of liquid crystal molecules on solution-derived zinc-tin-oxide films via ion beam irradiation

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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