Design, synthesis and application of hydrogen bonded smectic liquid crystal matrix encapsulated ZnO nanospikes

作者: Kaushik Pal , M. L. N. Madhu Mohan , Bihong Zhan , Guoping Wang

DOI: 10.1039/C5TC02436F

关键词: Phase (matter)NanomaterialsNanostructureDielectric lossLiquid crystalOptoelectronicsDielectricNanotechnologyRotational viscosityPhase transitionMaterials science

摘要: ZnO nanospikes, due to their novel properties, are promising components in a wide range of nanoscale devices for future applications. Herein, current research activities focused on the synthesis, characterization and applications nanostructures encapsulated by hydrogen bonded liquid crystal matrix (HBLC e.g. azelaic acid heptyloxy benzoic acid) optical switching. We briefly describe smartest applied methodologies synthesis smooth dispersion within crystalline materials. In fact, HBLC doping was recently found significantly influence nucleation growth many functional nanocrystals (NCs), provide fundamental approach modify crystallographic phase, size, morphology, electronic configuration nanomaterials. All homologues present series show rich mesomorphism, exhibiting orthogonal tilted phases. A remarkable characteristics is then presented, organized into sections describing optical, electrical electro-optical phase transitions DC bi-stable switching properties. The other display parameters such as spontaneous polarization, rotational viscosity, response, capacitance, dielectric permittivity, loss spectra low frequency relaxation (Goldstone mode) also investigated these nanospike–HBLC composites, support observations described this article. Moreover, polarizing microscopy reveals various phases with different textural appearances, which proves nanomaterial. Most observed phenomena discussed terms new smectic ordering, named X*, sandwiched between traditional nematic convectional C* Dielectric relaxations pure doped LCs have been analyzed. feature article, we an overview most recent progresses (AC + 7BAO) doping-induced control efficient switching, well high performances nanomaterials, first time. These investigations developing versatile opto-electronic resolution devices.

参考文章(37)
Takashi Kato, Yasuo Kubota, Masahisa Nakano, Toshiyuki Uryu, Doubly Hydrogen-Bonded Liquid-Crystalline Complexes Obtained by Supramolecular Self-Assembly of 2,6-Diacylaminopyridines and 4-Alkoxybenzoic Acids Chemistry Letters. ,vol. 1995, pp. 1127- 1128 ,(1995) , 10.1246/CL.1995.1127
Fenfen Zhang, Xiaoli Wang, Shiyun Ai, Zhengdong Sun, Qiao Wan, Ziqiang Zhu, Yuezhong Xian, Litong Jin, Katsunobu Yamamoto, Immobilization of uricase on ZnO nanorods for a reagentless uric acid biosensor Analytica Chimica Acta. ,vol. 519, pp. 155- 160 ,(2004) , 10.1016/J.ACA.2004.05.070
Xia Fan, Ming-Liang Zhang, Ismathullakhan Shafiq, Wen-Jun Zhang, Chun-Sing Lee, Shuit-Tong Lee, ZnS/ZnO Heterojunction Nanoribbons Advanced Materials. ,vol. 21, pp. 2393- 2396 ,(2009) , 10.1002/ADMA.200802049
Khushboo, Divya Jayoti, Praveen Malik, Ashok Chaudhary, Rohit Mehra, K. K. Raina, Properties of Ferroelectric Liquid Crystal/Multiwall Carbon Nanotube Doped Composite Integrated Ferroelectrics. ,vol. 158, pp. 123- 130 ,(2014) , 10.1080/10584587.2014.957595
G. Sberveglieri, S. Groppelli, P. Nelli, A. Tintinelli, G. Giunta, A novel method for the preparation of NH3 sensors based on ZnO-In thin films Sensors and Actuators B-chemical. ,vol. 25, pp. 588- 590 ,(1995) , 10.1016/0925-4005(95)85128-3
J. W. Doane, A. Golemme, J. L. West, J. B. Whitehead, B.-G. Wu, Polymer dispersed liquid crystals for display application Molecular Crystals and Liquid Crystals. ,vol. 165, pp. 511- 532 ,(1988) , 10.1080/00268948808082211
C. J. Lee, T. J. Lee, S. C. Lyu, Y. Zhang, H. Ruh, H. J. Lee, Field emission from well-aligned zinc oxide nanowires grown at low temperature Applied Physics Letters. ,vol. 81, pp. 3648- 3650 ,(2002) , 10.1063/1.1518810
V.N. Vijayakumar, M.L.N. Madhu Mohan, Double hydrogen bonded ferroelectric liquid crystals: A study of field induced transition (FiT) Solid State Communications. ,vol. 149, pp. 2090- 2097 ,(2009) , 10.1016/J.SSC.2009.08.014
Xiaoli Zhu, Ishida Yuri, Xin Gan, Iwao Suzuki, Genxi Li, Electrochemical study of the effect of nano-zinc oxide on microperoxidase and its application to more sensitive hydrogen peroxide biosensor preparation Biosensors and Bioelectronics. ,vol. 22, pp. 1600- 1604 ,(2007) , 10.1016/J.BIOS.2006.07.007