DOPANT EFFECT ON THRESHOLD ELECTRIC-FIELD OF ANTIFERROELECTRIC LIQUID-CRYSTAL SWITCHING

被引:4
作者
MURASHIRO, K
KIKUCHI, M
INOUE, H
FUKUSHIMA, M
SAITO, S
机构
[1] Research Center, Chisso Petrochemical Corporation, Ichihara, 290
关键词
D O I
10.1080/02678299308027652
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The influence of dopants on the threshold electric field for switching antiferroelectric liquid crystals was determined from the optical response curve obtained by using a triangular wave. The effect of dopant concentration on the transition temperatures of the mixtures with a host material was also investigated. The threshold electric field was diminished depending on (i) the chemical structure of the additive and (ii) increasing amounts of the additive. The upper limits of the temperature region of the S(CA)* phases also decreased with increasing amount of additive, and these phases disappeared at 40 mol% of additive in all cases. Compound (C) is the most effective with respect to the threshold electric field. It is a two ring compound and has a chiral part similar to that of the host antiferroelectric liquid crystal compound.
引用
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页码:371 / 380
页数:10
相关论文
共 15 条
[1]   NOVEL PHASES EXHIBITING TRISTABLE SWITCHING [J].
CHANDANI, ADL ;
OUCHI, Y ;
TAKEZOE, H ;
FUKUDA, A ;
TERASHIMA, K ;
FURUKAWA, K ;
KISHI, A .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1989, 28 (07) :L1261-L1264
[2]   ANTIFERROELECTRIC CHIRAL SMECTIC PHASES RESPONSIBLE FOR THE TRISTABLE SWITCHING IN MHPOBC [J].
CHANDANI, ADL ;
GORECKA, E ;
OUCHI, Y ;
TAKEZOE, H ;
FUKUDA, A .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1989, 28 (07) :L1265-L1268
[3]   TRISTABLE SWITCHING IN SURFACE STABILIZED FERROELECTRIC LIQUID-CRYSTALS WITH A LARGE SPONTANEOUS POLARIZATION [J].
CHANDANI, ADL ;
HAGIWARA, T ;
SUZUKI, Y ;
OUCHI, Y ;
TAKEZOE, H ;
FUKUDA, A .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1988, 27 (05) :L729-L732
[4]  
Furukawa K., 1988, FERROELECTRICS, V85, P451
[5]  
GORECKA E, 1990, JPN J APPL PHYS, V29, pL131
[6]   NOVEL QUADRUPLE ZIGZAG STRUCTURE OF ANTIFERROELECTRIC LIQUID-CRYSTAL MOLECULES OBSERVED BY SCANNING TUNNELING MICROSCOPY [J].
HARA, M ;
UMEMOTO, T ;
TAKEZOE, H ;
GARITO, AF ;
SASABE, H .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1991, 30 (12A) :L2052-L2054
[7]   OBSERVATION OF 3 SUBPHASES IN SMECTIC C-STAR OF MHPOBC BY DIELECTRIC MEASUREMENTS [J].
HIRAOKA, K ;
TAGUCHI, A ;
OUCHI, Y ;
TAKEZOE, H ;
FUKUDA, A .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1990, 29 (01) :L103-L106
[8]   1ST-ORDER PARAELECTRIC-ANTIFERROELECTRIC PHASE-TRANSITION IN A CHIRAL SMECTIC LIQUID-CRYSTAL OF A FLUORINE CONTAINING PHENYL PYRIMIDINE DERIVATIVE [J].
INUI, S ;
KAWANO, S ;
SAITO, M ;
IWANE, H ;
TAKANISHI, Y ;
HIRAOKA, K ;
OUCHI, Y ;
TAKEZOE, H ;
FUKUDA, A .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1990, 29 (06) :L987-L990
[9]   TEMPORAL AND SPATIAL-BEHAVIOR OF THE FIELD-INDUCED TRANSITION BETWEEN ANTIFERROELECTRIC AND FERROELECTRIC PHASES IN CHIRAL SMECTICS [J].
JOHNO, M ;
ITOH, K ;
LEE, J ;
OUCHI, Y ;
TAKEZOE, H ;
FUKUDA, A ;
KITAZUME, T .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1990, 29 (01) :L107-L110
[10]  
JOHONO M, 1990, JPN J APPL PHYS, V29, pL111