Homogeneous liquid crystal alignment characteristics on solution-derived HfYGaO films treated with IB irradiation

Yun Gun Lee; Hong Gyu Park; Hae Chang Jeong; Ju Hwan Lee; Gi Seok Heo; Dae Shik Seo

doi:10.1364/OE.23.017290

Homogeneous liquid crystal alignment characteristics on solution-derived HfYGaO films treated with IB irradiation

Yun Gun Lee, Hong Gyu Park, Hae Chang Jeong, Ju Hwan Lee, Gi Seok Heo, Dae Shik Seo

Department of Electrical and Electronic Engineering

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

11 Citations (Scopus)

Abstract

Solution-derived HfYGaO films have been treated by ion beam (IB) irradiation and used as liquid crystal (LC) alignment layers. Solution processing was adopted due to its simplicity, high throughput, and facile composition modification. Homogeneous and uniform LC alignment was achieved on the IB-irradiated HfYGaO films, and when these films were adopted in twisted nematic (TN) cells, electro-optical performance comparable to that of TN cells with conventional polyimide layers was achieved, with almost no capacitance-voltage hysteresis. Moreover, LC cells based on IB-irradiated HfYGaO films had a high thermal budget. The proposed IB-irradiated solution-derived HfYGaO films have considerable potential for use in advanced LC applications.

Original language	English
Pages (from-to)	17290-17300
Number of pages	11
Journal	Optics Express
Volume	23
Issue number	13
DOIs	https://doi.org/10.1364/OE.23.017290
Publication status	Published - 2015

Bibliographical note

Publisher Copyright:
© 2015 Optical Society of America.

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OE.23.017290

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title = "Homogeneous liquid crystal alignment characteristics on solution-derived HfYGaO films treated with IB irradiation",

abstract = "Solution-derived HfYGaO films have been treated by ion beam (IB) irradiation and used as liquid crystal (LC) alignment layers. Solution processing was adopted due to its simplicity, high throughput, and facile composition modification. Homogeneous and uniform LC alignment was achieved on the IB-irradiated HfYGaO films, and when these films were adopted in twisted nematic (TN) cells, electro-optical performance comparable to that of TN cells with conventional polyimide layers was achieved, with almost no capacitance-voltage hysteresis. Moreover, LC cells based on IB-irradiated HfYGaO films had a high thermal budget. The proposed IB-irradiated solution-derived HfYGaO films have considerable potential for use in advanced LC applications.",

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AU - Lee, Yun Gun

AU - Park, Hong Gyu

AU - Jeong, Hae Chang

AU - Lee, Ju Hwan

AU - Heo, Gi Seok

AU - Seo, Dae Shik

PY - 2015

Y1 - 2015

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AB - Solution-derived HfYGaO films have been treated by ion beam (IB) irradiation and used as liquid crystal (LC) alignment layers. Solution processing was adopted due to its simplicity, high throughput, and facile composition modification. Homogeneous and uniform LC alignment was achieved on the IB-irradiated HfYGaO films, and when these films were adopted in twisted nematic (TN) cells, electro-optical performance comparable to that of TN cells with conventional polyimide layers was achieved, with almost no capacitance-voltage hysteresis. Moreover, LC cells based on IB-irradiated HfYGaO films had a high thermal budget. The proposed IB-irradiated solution-derived HfYGaO films have considerable potential for use in advanced LC applications.

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Homogeneous liquid crystal alignment characteristics on solution-derived HfYGaO films treated with IB irradiation

Abstract

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