IEICE TRANSACTIONS on Electronics
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Electrically Controllable Light Scattering Properties of Nematic Liquid Crystal/Polyfluorene Gel Devices
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Summary :
In recent years, demand for smart windows with dimming and other functions has been increasing, e.g., polymer dispersed liquid crystals. Liquid crystal (LC) gels also have the potential for smart glass applications owing to their light-scattering properties. In this study, LC gels were prepared by mixing nematic LC (E7) with poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PFO) as a gelator. The LC gel formed a dense PFO network as the concentration increased. The PFO network structure changed in response to the change in the cooling rate. High contrast ratio of light scattering was obtained for the LC gel device that was fabricated via the 2-wt%-doping of PFO and natural cooling. Furthermore, the PFO concentration and cooling rate were found to affect the response time of the LC gel device.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E107-C No.2 pp.29-33
- Publication Date
- 2024/02/01
- Publicized
- 2023/08/10
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.2023DII0005
- Type of Manuscript
- Special Section INVITED PAPER (Special Section on Electronic Displays)
- Category
Authors
Asuka YAGI
Akita Prefectural University
Michinori HONMA
Akita Prefectural University
Ryota ITO
Akita Prefectural University
Toshiaki NOSE
Akita Prefectural University
Keyword
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Asuka YAGI, Michinori HONMA, Ryota ITO, Toshiaki NOSE, "Electrically Controllable Light Scattering Properties of Nematic Liquid Crystal/Polyfluorene Gel Devices" in IEICE TRANSACTIONS on Electronics,
vol. E107-C, no. 2, pp. 29-33, February 2024, doi: 10.1587/transele.2023DII0005.
Abstract: In recent years, demand for smart windows with dimming and other functions has been increasing, e.g., polymer dispersed liquid crystals. Liquid crystal (LC) gels also have the potential for smart glass applications owing to their light-scattering properties. In this study, LC gels were prepared by mixing nematic LC (E7) with poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PFO) as a gelator. The LC gel formed a dense PFO network as the concentration increased. The PFO network structure changed in response to the change in the cooling rate. High contrast ratio of light scattering was obtained for the LC gel device that was fabricated via the 2-wt%-doping of PFO and natural cooling. Furthermore, the PFO concentration and cooling rate were found to affect the response time of the LC gel device.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2023DII0005/_p
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@ARTICLE{e107-c_2_29,
author={Asuka YAGI, Michinori HONMA, Ryota ITO, Toshiaki NOSE, },
journal={IEICE TRANSACTIONS on Electronics},
title={Electrically Controllable Light Scattering Properties of Nematic Liquid Crystal/Polyfluorene Gel Devices},
year={2024},
volume={E107-C},
number={2},
pages={29-33},
abstract={In recent years, demand for smart windows with dimming and other functions has been increasing, e.g., polymer dispersed liquid crystals. Liquid crystal (LC) gels also have the potential for smart glass applications owing to their light-scattering properties. In this study, LC gels were prepared by mixing nematic LC (E7) with poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PFO) as a gelator. The LC gel formed a dense PFO network as the concentration increased. The PFO network structure changed in response to the change in the cooling rate. High contrast ratio of light scattering was obtained for the LC gel device that was fabricated via the 2-wt%-doping of PFO and natural cooling. Furthermore, the PFO concentration and cooling rate were found to affect the response time of the LC gel device.},
keywords={},
doi={10.1587/transele.2023DII0005},
ISSN={1745-1353},
month={February},}
Copy
TY - JOUR
TI - Electrically Controllable Light Scattering Properties of Nematic Liquid Crystal/Polyfluorene Gel Devices
T2 - IEICE TRANSACTIONS on Electronics
SP - 29
EP - 33
AU - Asuka YAGI
AU - Michinori HONMA
AU - Ryota ITO
AU - Toshiaki NOSE
PY - 2024
DO - 10.1587/transele.2023DII0005
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E107-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 2024
AB - In recent years, demand for smart windows with dimming and other functions has been increasing, e.g., polymer dispersed liquid crystals. Liquid crystal (LC) gels also have the potential for smart glass applications owing to their light-scattering properties. In this study, LC gels were prepared by mixing nematic LC (E7) with poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PFO) as a gelator. The LC gel formed a dense PFO network as the concentration increased. The PFO network structure changed in response to the change in the cooling rate. High contrast ratio of light scattering was obtained for the LC gel device that was fabricated via the 2-wt%-doping of PFO and natural cooling. Furthermore, the PFO concentration and cooling rate were found to affect the response time of the LC gel device.
ER -
English
