Presentation 2024-01-25
Physical properties of hydrogen-bonded liquid crystal with fluorine-subsutituted benzoic acids
Koki Sawataishi, Dan Jian, Rumiko Yamaguchi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Fluoro-benzoic acids (2-, 3-, 4-FBA), difluoro-benzoic acids (2,3-, 2,4-, 2,5-, 2,6-, 3,4-, 3,5-F2BA) and trifluoro-benzoic acid (2,3,4-, 3,4,5-F3BA) were mixed with the Hydrogen-Bonded Liquid Crystal of alkylbenzoic acids. Physical properties of dielectric constants, elastic constants and refractive index anisotropy were measured. The effect of the fluorine position in the phenyl ring on the physical properties was investigated. Dielectric anisotropy decreased by adding 2-FBA and 2,3-F2BA and increased by adding 4-FBA, 3,4-F2BA, 3,5-F2BA, 2,3,4-F3BA and 3,4,5-F3BA. With the addition of 3,4,5-F3BA, the dielectric anisotropy increased with increasing mixing concentration up to about 40 wt%, and them decreased. K11 and K33 of all mixed liquid crystals decreased. Threshold voltages decreased from matrix liquid crystal except for 2,3-F2BA, which was reduced by about one-fifth by mixing 55 wt% of 3,4,5-F3BA.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Hydrogen-Bonded Liquid Crystal / Terahertz wave / Threshold voltage
Paper # EID2023-2
Date of Issue 2024-01-18 (EID)

Conference Information
Committee EID / ITE-IDY / IEE-EDD / SID-JC / IEIJ-SSL
Conference Date 2024/1/25(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Masayuki Kanbara(NAIST)
Vice Chair Mitsuhiro Akimoto(Sanyo-Onoda City Univ) / Masanobu Mizusaki(SHARP)
Secretary Mitsuhiro Akimoto(NHK) / Masanobu Mizusaki(Japan Display)
Assistant Munekazu Date(NTT) / Mutsumi Kimura(Ryukoku Univ.) / Tomokazu Shiga(Univ. of Electro-Comm.) / Hiroko Kominami(Shizuoka Univ.) / Rumiko Yamaguchi(Akita Univ.) / Masahiro Yamaguchi(Tokyo Inst. of Tec.)

Paper Information
Registration To Technical Committee on Electronic Information Displays / Technical Group on Information Display / Technical Meeting on Electron Devices / Society for Information Display Japan Chapter / Division of Solid State Light Sources
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Physical properties of hydrogen-bonded liquid crystal with fluorine-subsutituted benzoic acids
Sub Title (in English)
Keyword(1) Hydrogen-Bonded Liquid Crystal
Keyword(2) Terahertz wave
Keyword(3) Threshold voltage
1st Author's Name Koki Sawataishi
1st Author's Affiliation Akita University(Akita Univ.)
2nd Author's Name Dan Jian
2nd Author's Affiliation Akita University(Akita Univ.)
3rd Author's Name Rumiko Yamaguchi
3rd Author's Affiliation Akita University(Akita Univ.)
Date 2024-01-25
Paper # EID2023-2
Volume (vol) vol.123
Number (no) EID-360
Page pp.pp.1-4(EID),
#Pages 4
Date of Issue 2024-01-18 (EID)