Effect of Insulating Nanoparticles Doping on Electro-Optical Characteristics in Nematic Liquid Crystal Cells

被引：19
作者：
Chen, Wei-Ting [1 ]
Chen, Pei-Shiang [1 ]
Chao, Chih-Yu [1 ]
机构：
[1] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2009年 / 507卷
关键词：
liquid crystals; nanoparticles; CARBON NANOSOLIDS;
D O I：
10.1080/15421400903053602
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The transient currents and the voltage holding ratio (VHR) generated by an applied direct voltage have been measured in nematic liquid crystal (LC) cells. The experimental results show that doping insulating nanoparticles such as ZnO, TiO2 and Si3N4 in nematic LCs leads to a reduction of the moving-ion density in cells and thus drastically reduces the transient currents and threshold voltage. This doping method improves the electro-optical characteristics in nematic LC cells. Moreover, we find that the VHR values are maintained higher than 95% in these doped LC cells. Such a high VHR observed in doped LC cells is a superior feature for future LC display applications.
引用
收藏
页码：253 / 263
页数：11
相关论文
共 15 条
[1]   Electrical-field effect on carbon nanotubes in a twisted nematic liquid crystal cell [J].
Baik, IS ;
Jeon, SY ;
Lee, SH ;
Park, KA ;
Jeong, SH ;
An, KH ;
Lee, YH .
APPLIED PHYSICS LETTERS, 2005, 87 (26) :1-3
[2]   Effect of insulating-nanoparticles addition on ion current and voltage-holding ratio in nematic liquid crystal cells [J].
Chen, Pei-Shiang ;
Huang, Chiu-Chung ;
Liu, Yung-Wei ;
Chao, Chih-Yu .
APPLIED PHYSICS LETTERS, 2007, 90 (21)
[3]   Adequate measuring techniques for ions in liquid crystal layers [J].
Colpaert, C ;
Maximus, B ;
DeMeyere, A .
LIQUID CRYSTALS, 1996, 21 (01) :133-142
[4]  
Colpaert C., 1993, PROC SID RES C, P301
[5]   Aligning and reorienting carbon nanotubes with nematic liquid crystals [J].
Dierking, I ;
Scalia, G ;
Morales, P ;
LeClere, D .
ADVANCED MATERIALS, 2004, 16 (11) :865-869
[6]   Effect of ion trapping films on the electrooptic characteristics of polymer-stabilized ferroelectric liquid crystal display exhibiting V-shaped switching [J].
Furuichi, K ;
Xu, J ;
Inoue, M ;
Furuta, H ;
Yoshida, N ;
Tounai, A ;
Tanaka, Y ;
Mochizuki, A ;
Kobayashi, S .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2003, 42 (7A) :4411-4415
[7]   Ferroelectric particles in liquid crystals:: Recent frontiers [J].
Glushchenko, Anatoliy ;
Il Cheon, Chae ;
West, John ;
Li, Fenghua ;
Buyuktanir, Ebru ;
Reznikov, Yuri ;
Buchnev, Alexander .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2006, 453 :227-237
[8]   Influence of Ion Transport on Liquid Crystal Switching [J].
James, Richard ;
Stojmenovik, Goran ;
Desimpel, Chris ;
Vermael, Stefaan ;
Fernandez, F. Anibal ;
Day, Sally E. ;
Neyts, Kristiaan .
JOURNAL OF DISPLAY TECHNOLOGY, 2006, 2 (03) :237-246
[9]   Electro-optical properties of planar nematic cells impregnated with carbon nanosolids [J].
Lee, W ;
Gau, JS ;
Chen, HY .
APPLIED PHYSICS B-LASERS AND OPTICS, 2005, 81 (2-3) :171-175
[10]   Effects of carbon nanosolids on the electro-optical properties of a twisted nematic liquid-crystal host [J].
Lee, W ;
Wang, CY ;
Shih, YC .
APPLIED PHYSICS LETTERS, 2004, 85 (04) :513-515
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