Ultrafast laser induced nanostructured ITO for liquid crystal alignment and higher transparency electrodes
Femtosecond laser nanostructured indium tin oxide (ITO) coated glass is shown to act both as a liquid crystal (LC) alignment layer and as an electrode with higher transparency. The nanopatterns of the 120 nm period were created using ultrashort laser pulses directly on ITO films without any addition...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Online Access: | https://hdl.handle.net/10356/88512 http://hdl.handle.net/10220/47612 |
| _version_ | 1826123329780580352 |
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| author | Solodar, A. Cerkauskaite, A. Drevinskas, R. Kazansky, P. G. Abdulhalim, Ibrahim |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Solodar, A. Cerkauskaite, A. Drevinskas, R. Kazansky, P. G. Abdulhalim, Ibrahim |
| author_sort | Solodar, A. |
| collection | NTU |
| description | Femtosecond laser nanostructured indium tin oxide (ITO) coated glass is shown to act both as a liquid crystal (LC) alignment layer and as an electrode with higher transparency. The nanopatterns of the 120 nm period were created using ultrashort laser pulses directly on ITO films without any additional spin coating materials or lithography process. Nine regions of laser-induced nanostructures were fabricated with different alignment orientations and various pulse energy levels on top of the ITO confirming the follow-up of the LC director to the line orientation. The device interfacial anchoring energy was found to be ∼1μ J/m2, comparable to the anchoring energy of nematic LC on photosensitive polymers. The transparency as an electrode was found to improve due to the better antireflection and lower absorption expected from a nanostructured surface. |
| first_indexed | 2024-10-01T06:02:53Z |
| format | Journal Article |
| id | ntu-10356/88512 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:02:53Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/885122023-07-14T15:52:11Z Ultrafast laser induced nanostructured ITO for liquid crystal alignment and higher transparency electrodes Solodar, A. Cerkauskaite, A. Drevinskas, R. Kazansky, P. G. Abdulhalim, Ibrahim School of Materials Science & Engineering Liquid Crystal Alignment Ultrafast Laser DRNTU::Engineering::Materials Femtosecond laser nanostructured indium tin oxide (ITO) coated glass is shown to act both as a liquid crystal (LC) alignment layer and as an electrode with higher transparency. The nanopatterns of the 120 nm period were created using ultrashort laser pulses directly on ITO films without any additional spin coating materials or lithography process. Nine regions of laser-induced nanostructures were fabricated with different alignment orientations and various pulse energy levels on top of the ITO confirming the follow-up of the LC director to the line orientation. The device interfacial anchoring energy was found to be ∼1μ J/m2, comparable to the anchoring energy of nematic LC on photosensitive polymers. The transparency as an electrode was found to improve due to the better antireflection and lower absorption expected from a nanostructured surface. NRF (Natl Research Foundation, S’pore) Published version 2019-02-01T06:29:04Z 2019-12-06T17:04:55Z 2019-02-01T06:29:04Z 2019-12-06T17:04:55Z 2018 Journal Article Solodar, A., Cerkauskaite, A., Drevinskas, R., Kazansky, P. G., & Abdulhalim, I. (2018). Ultrafast laser induced nanostructured ITO for liquid crystal alignment and higher transparency electrodes. Applied Physics Letters, 113(8), 081603-. doi:10.1063/1.5040692 0003-6951 https://hdl.handle.net/10356/88512 http://hdl.handle.net/10220/47612 10.1063/1.5040692 en Applied Physics Letters © 2018 The Author(s). All rights reserved. This paper was published by AIP Publishing in Applied Physics Letters and is made available with permission of The Author(s). 5 p. application/pdf |
| spellingShingle | Liquid Crystal Alignment Ultrafast Laser DRNTU::Engineering::Materials Solodar, A. Cerkauskaite, A. Drevinskas, R. Kazansky, P. G. Abdulhalim, Ibrahim Ultrafast laser induced nanostructured ITO for liquid crystal alignment and higher transparency electrodes |
| title | Ultrafast laser induced nanostructured ITO for liquid crystal alignment and higher transparency electrodes |
| title_full | Ultrafast laser induced nanostructured ITO for liquid crystal alignment and higher transparency electrodes |
| title_fullStr | Ultrafast laser induced nanostructured ITO for liquid crystal alignment and higher transparency electrodes |
| title_full_unstemmed | Ultrafast laser induced nanostructured ITO for liquid crystal alignment and higher transparency electrodes |
| title_short | Ultrafast laser induced nanostructured ITO for liquid crystal alignment and higher transparency electrodes |
| title_sort | ultrafast laser induced nanostructured ito for liquid crystal alignment and higher transparency electrodes |
| topic | Liquid Crystal Alignment Ultrafast Laser DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/88512 http://hdl.handle.net/10220/47612 |
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