Zobrazeno 1 - 10
of 78
pro vyhledávání: '"E-Joon Choi"'
Publikováno v:
ARKIVOC, Vol 2011, Iss 5, Pp 211-216 (2011)
Externí odkaz:
https://doaj.org/article/c7e04a776dbe4968ab69f3251d5b1205
Publikováno v:
Macromolecular Research. 30:799-810
Publikováno v:
Current Applied Physics. 23:8-14
We investigated dielectric properties of a hockey-stick-shaped liquid crystal (HLC). Two dielectric relaxation modes were observed at 0.91 kHz and 4.51 MHz. The low frequency relaxation modes in isotropic, smectic, and nematic phases are related to t
Autor:
Cheong-Min Shin, Gi-Eun Kim, Kyeong-Gyu Min, Yanqiu Chen, E-Joon Choi, Chang-Jae Yu, Jae-Hoon Kim
Publikováno v:
2021 7th IEEE International Conference on Network Intelligence and Digital Content (IC-NIDC).
Autor:
E-Joon Choi, Dae-Yoon Kim, Kwang-Un Jeong, Chang-Jae Yu, Seung-Chang Kang, Jae-Hoon Kim, You-Jin Lee, Hye-Jin Kim
Publikováno v:
Liquid Crystals. 46:2042-2056
New hockey-stick-shaped liquid crystals (HSLCs) have been designed and synthesised. By extreme shortening of one ‘arm’ in the HSLCs, we have constructed the pronounced overall hockey-stick-shaped molecular conformation of these materials, and cal
Publikováno v:
Liquid Crystals. 46:1136-1144
We have synthesised the low aspect ratio mesogenic compounds containing one fluorene and two biphenyl moieties, and investigate their mesomorphic properties and the resultant anisotropic properties in both photoluminescence and electroluminescence. W
Publikováno v:
Optical Materials Express. 12:2436
Five kinds of T-shaped reactive molecules were newly synthesized for optical retarder films. The retarder films were fabricated using the mixtures of rodlike reactive mesogen (RM) and the T-shaped molecules. The effect of the chemical structure of th
Publikováno v:
Physical Review E. 102
This paper reports the pattern formation and evolution in a high-frequency dielectric regime observed in the AC-driven electroconvection of nematic liquid crystals (NLCs). It is determined that prewavy (PW) instability is essential for the formation
Publikováno v:
Bulletin of the Korean Chemical Society. 39:401-404
Autor:
Anoop Kumar Srivastava, Jongyoon Kim, Jinyoung Jeong, Sunggu Yeo, Ji-Hoon Lee, Vijay Singh, E-Joon Choi
Publikováno v:
Current Applied Physics. 17:858-863
We investigated the dielectric dispersion property of a bent-core liquid crystal (BLC) with a large kink angle in the frequency range of 1.0 Hz–5.5 MHz in a planar aligned cell. Single dielectric dispersion was observed in the smectic A, nematic, a