Influence of Chemical Structure of Monomers on Electro-Optical Characteristics of HPDLC Gratings

LIU Yong-gang; ZHENG Zhi-gang; PENG Zeng-hui; HU Li-fa; CAO Zhao-liang; LI Wen-cui; Xuan Li

doi:null

您当前的位置：

首页 >

文章列表页 >

Influence of Chemical Structure of Monomers on Electro-Optical Characteristics of HPDLC Gratings

Material Physics & Chemistry | 更新时间：2020-08-12

- Influence of Chemical Structure of Monomers on Electro-Optical Characteristics of HPDLC Gratings
- Chinese Journal of Liquid Crystals and Displays Vol. 24, Issue 4, Pages: 487-492(2009)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林长春 130033,E-mail: ygliujilin@yahoo.com.cn
  2. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
- DOI：
  CLC： O438.1;TN141.9
- Received：24 February 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 August 2009，
  
  Published：30 August 2009
- 稿件说明：
移动端阅览
刘永刚;郑致刚;彭增辉;胡立发;曹召良;李文萃;宣丽. 单体材料结构对全息聚合物分散液晶光栅电光特性的影响[J]. 液晶与显示, 2009,24(04): 487-492

LIU Yong-gang;ZHENG Zhi-gang;PENG Zeng-hui;HU Li-fa;CAO Zhao-liang;LI Wen-cui;Xuan Li. Influence of Chemical Structure of Monomers on Electro-Optical Characteristics of HPDLC Gratings[J]. 液晶与显示, 2009,24(04): 487-492
刘永刚;郑致刚;彭增辉;胡立发;曹召良;李文萃;宣丽. 单体材料结构对全息聚合物分散液晶光栅电光特性的影响[J]. 液晶与显示, 2009,24(04): 487-492 DOI：

LIU Yong-gang;ZHENG Zhi-gang;PENG Zeng-hui;HU Li-fa;CAO Zhao-liang;LI Wen-cui;Xuan Li. Influence of Chemical Structure of Monomers on Electro-Optical Characteristics of HPDLC Gratings[J]. 液晶与显示, 2009,24(04): 487-492 DOI：

摘要

使用3种分子结构不同的单体材料体系制备了全息聚合物分散液晶光栅

对所制备光栅的形貌、衍射特性、驱动特性、单体双键转化率等进行了研究。研究结果表明:体系中单体材料结构刚性的增加有助于相分离结构的改善。由柔性单体制备的光栅样品

双键转化率低

光栅液晶区域液晶微滴尺寸小

驱动电压高;刚性适度的样品

其光栅液晶区域液晶微滴较大

衍射能力达到96％

实际衍射效率为82%

且曝光结束后单体的单体双键转化率达到了57％

驱动电压为8.3 V/m;随着单体材料结构刚性的继续增加

光栅液晶微滴反而变小

液晶区域变窄

驱动电压升高。因此

合理增加单体的刚性程度有助于提高光栅相分离及光栅的电光特性。

Abstract

Holographic polymer dispersed liquid crystal is a kind of novel photoelectronomic information functional device. In this study

effect of chemical structure of monomers on holographic polymer dispersed liquid crystal gratings was investigated from the morphology

the diffraction efficiency

the electro-optical tunable performance and ene-conversions

respectively. The results showed that

the chemical structure of monomers plays an important role in performance of H-PDLC gratings. A rigid molecular structure forms a clear morphology

high diffraction efficiency and low threshold voltage gratings than a flexible molecular structure. In addition

the rigidity ring increases interactions between molecules and restricts the motion between them

thus enhances the phase separation

electro-optical characteristics and ene-conversions. On the other hand

with the rigid structure of monomer material increase

making the volume of LC droplets become smaller

LC regional narrow

so the drive voltage was increased

however

there is still a drop than flexible molecules. Therefore increa-sing the rigid structure of monomer reasonably can improve the phase separation and electro-optical properties of HPDLC gratings.

关键词

Keywords

references

. Drzaic P S, Gonzales A M. Refractive index gradients and light scattering in polymer-dispersed liquid crystal films [J]. Appl. Phys. Lett., 1993, 62(12):1332-1334.

. Aphonin O A, Panina Y U V, Pravdin A B, et al. Optical properties of stretched polymer dispersed liquid crystal Film [J]. Liq. Crys., 1993,15(3): 395-407.

. Sutherland R L, Natarajan L V, Tondiglia V P, et al. Electrically switchable volume gratings in polymer-dispersed liquid crystals [J]. Appl. Phys. Lett., 1994, 64(9):1074-1076.

. Crawford G P, Fiske T G, Silverstein L D. Reflective color LCDs based on H-PDLC and PSCT technologies [J]. SID Digest Technol. Paper, 1996, 27: 99-102.

. Domash L H, Chen Y M, Gomatam B N, et al. Switchable-focus lenses in holographic polymer-dispersed liquid crystal [J]. Proc. SPIE, 1996, 2689: 188-194.

. Sutherland R L, Natarajan L V, Tondiglia V P, et al. Switchable holograms for displays and telecommunications [J]. Proc. SPIE, 2001, 4463: 1-10.

. Bunning T J, Natarajan L V, Tondiglia V P, et al. Holographic polymer-dispersed liquid crystals (H-PDLCs)[J]. Annu. Rev. Mater. Sci., 2000,30: 83-87.

. Pogue R T, Natarajan L V, Tondiglia V P, et al. Controlling nanoscale morphology in switchable PDLC gratings [J]. Proc. SPIE, 1998, 3475:2-11.

. Lin J C, Taylor P L. Polymerization-induced phase separation of a liquid crystal-polymer mixture [J]. Mol. Cryst. Liq. Cryst., 1993, 237(13):25-31.

. 阮圣平,彭增辉,于涛,等. 全息液晶/聚合物光栅的制备[J]. 液晶与显示 ,2002, 17(5):331-334.

. 张斌,刘言军,贾瑜,等. 全息聚合物弥散液晶材料衍射特性的优化[J]. 物理学报, 2003, 52(1):91-95.

. 张斌,刘言军,徐克璹. 全息聚合物弥散液晶器件电光特性的研究[J]. 物理学报, 2004,53(06):1850-1856.

. 宋静,郑致刚,刘永刚,等.含氟单体材料对全息聚合物分散液晶光栅电光特性的影响 [J] . 液晶与显示, 2006, 21 (5):443-449.

. 刘永刚,马骥,宋静,等.单体平均官能度对制备液晶/聚合物光栅的影响 [J]. 液晶与显示, 2005,20 (3):210-214.

. Zheng Z, Song J, Liu Y, et al. Single-step exposure for two-dimensional electrically-tuneable diffraction grating based on polymer dispersed liquid crystal[J]. Liq. Cryst., 2008,35(4):489-499.

. Zheng Z, Ma J, Li W, et al. Improvements in morphological and electro-optical properties of polymer dispersed liquid crystal grating using a highly fluorine-substituted acrylate monomer[J]. Liq. Cryst., 2008,35(7):885-893.

. Wu B G, Erdmann J H, Doane J W. Response times and voltages for PDLC light shutters[J]. Liq. Cryst., 1989,5(5):1453-1465.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Generation and profile of asymmetric dynamic phase grating in nematic liquid crystal

Preparation of dual-monomer high spatial frequency H-PDLC grating based on acrylic polymer

Design and fabrication of liquid crystal polarizing grating used in color optical waveguide display

Optimization method of diffraction efficiency of cascade liquid crystal polarization gratings based on polarization compensation

Polymer dispersed liquid crystal flexible holographic curved grating

Related Author

DING Hongwei

LI You

REN Changyu

SHEN Tong

ZHU Ning

ZHENG Jihong

LI Ke

LIU Yourong

Related Institution

School of Science， Heilongjiang University of Science and Technology

Fuzhou College of Foreign Studies and Trade

School of Optical-Electrical and Computer Engineering， University of Shanghai for Science and Technology

Key Laboratory of Optical System Advanced Manufacturing Technology， Chinese Academy of Sciences

Center of Materials Science and Optoelectronics Engineering， University of Chinese Academy of Sciences

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China 130033 Postal code：130033
Tel：0431-86176059 Email：yjxs@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰