454
Views
2
CrossRef citations to date
0
Altmetric
Invited Articles

Planar and Vertical Alignment of Rod-like and Bent-core Liquid Crystals Using Functionalized Indium Tin Oxide Substrates

, , , , , & show all
Pages 1246-1260 | Received 27 Aug 2021, Published online: 15 Nov 2021

References

  • Li Q, Ed. Liquid crystals beyond displays: chemistry, physics and applications. Hoboken N. J. Weinheim Germany: John Wiley and Sons; 2012. p. 1–569.
  • Angelova A, Garamus VM, Angelov B, et al. Advances in structural design of lipid-based nanoparticle carriers for delivery of macromolecular drugs, phytochemicals and anti-tumor agents. Adv Colloid Interface Sci. 2017;249:331–345.
  • Niori T, Sekine T, Watanabe J, et al. Distinct ferroelectric smectic liquid crystals consisting of banana shaped achiral molecules. J Mater Chem. 1996;6:1231–1233.
  • Link DR, Natale G, Shao R, et al. Spontaneous formation of macroscopic chiral domains in a fluid smectic phase of achiral molecules. Science. 1997;278:1924–1927.
  • Pelzl G, Diele S, Weissflog W. Banana-shaped compounds- a new field of liquid crystals. Adv Mater. 1999;11:707–724.
  • Bedel JP, Rouillon JC, Marcerou JP, et al. New switchable smectic phases in banana-shaped compounds. Liq Cryst. 2001;28:1285–1292.
  • Umadevi S, Sadashiva BK. Banana-shaped mesogens: mesomorphic properties of seven-ring esters derived from 5-chlororesorcinol. Liq Cryst. 2005;32:287–297.
  • Takezoe H, Takanishi Y. Bent-core liquid crystals: their mysterious and attractive world. Jpn J Appl Phys. 2006;45:597–625.
  • Umadevi S, Sadashiva BK. Novel five-ring bent-core compounds exhibiting a transition from the electro-optically nonswitchable to a switchable B7 phase. Chem Mater. 2006;18:5186–5192.
  • Umadevi S, Radhika S, Sadashiva BK. The SmCPA phase in five-ring bent-core compounds derived from 5-methoxyisophthalic acid. Liq Cryst. 2006;33:139–147.
  • Umadevi S, Jakli A, Sadashiva BK. Odd-even effects in bent-core compounds containing terminal n-Alkyl carboxylate groups. Soft Matter. 2006;2:875–885.
  • Umadevi S, Jakli A, Sadashiva BK. Bistable linear electro-optical switching in the B7´ phase of novel bent-core molecules. Soft Matter. 2006;2:215–222.
  • Umadevi S, Radhika S, Sadashiva BK. Polar columnar and lamellar mesophases in homologous bent-core compounds derived from Methyl 3,5-Dihydroxybenzoate. Liq Cryst. 2013;40:1035–1049.
  • Kumari S, Singh S. Influence of pressure on the B2 →I phase transition of a banana-shaped liquid crystal. Liq Cryst. 2014;41:522–529.
  • Panarin YP, Sreenilayam SP, Vij JK, et al. A fast linear electro-optical effect in a non-chiral bent-core liquid crystal. J Mater Chem C. 2017;5:12585–12590.
  • Sreenilayam SP, Panov VP, Vij JK, et al. The NTB phase in an achiral asymmetrical bent-core liquid crystal terminated with symmetric alkyl chains. Liq Cryst. 2017;44:244–253.
  • Salili SM, Ribeiro De Almeida RRR, Challa PK, et al. Spontaneously modulated chiral nematic structures of flexible bent-core liquid crystal dimers. Liq Cryst. 2017;44:160–167.
  • Wang J, Bergquist L, Hwang JI, et al. Wide temperature-range, multi-component, optically isotropic antiferroelectric bent-core liquid crystal mixtures for display applications. Liq Cryst. 2018;45:333–340.
  • Vorlander D, Apel A. Berichte der deutschenchemischen Gesellschaft (A and B series), Die Richtung der kohlenstoff-Valenzen in Benzolabkommlingen (II). Eu Chem S. 1932;65:1101–1109.
  • Alaasar M, Prehm M, Belau S, et al. Polar order, mirror symmetry breaking and photoswitching of chirality and polarity in functional bent-core mesogens. Chem A Eur J. 2019;25:6362–6377.
  • Jakli A, Lavrentovich OD, Selinger JV. Physics of liquid crystals of bent-shaped molecules. Rev Mod Phys. 2018;90: 045004-1-045004-68.
  • Takatoh K, Sakamoto M, Hasegawa R, et al. Alignment technology and applications of liquid crystal devices, the liquid crystals book series. Vol. 5, 1st ed. CRC Press: UK; 2005.
  • Iglesias W, Jakli A. Applications of bent-core mesogens, Handbook of liquid crystals. 2nd ed., Vol. 8, Weinheim: Wiley-VCH, Verlag GmbH & Co; 2014. p. 799–818.
  • Wang J, Qiu L, Jakli A, et al. Inverse Langmuir-Schaefer films of bent-core molecules. Liq Cryst. 2010;37:1229–1236.
  • Iglesias W, Smith TJ, Basnet PB, et al. Alignment by Langmuir/Schaefer monolayers of bent-core liquid crystals. Soft Matter. 2011;7:9043–9050.
  • Smith TJ, Iglesias W, Mann EK, et al. Alignment of nematic liquid crystals by a bent-core substrate. Liq Cryst. 2013;40:159–164.
  • Sofi AH, Shah MA, Asokan K. Structural, optical and electrical properties of ITO thin films. J Electron Mater. 2018;47:1344–1352.
  • Cognard J. Alignment of nematic liquid crystals and their mixtures. Mol Cryst Liq Cryst Suppl Ser. 1982;1:1–74.
  • Charlet E, Grelet E, Brettes P, et al. Ultrathin films of homeotropically aligned columnar liquid crystals on indium tin oxide electrodes. Appl Phys Lett. 2008;92:024107.
  • Tang TT, Hung CY, Pan RP, et al. Vertical alignment of liquid crystal on ITO glass with anodic aluminium oxide thin film. Mol Cryst Liq Cryst. 2011;543:160/926–168/934.
  • Umadevi S, Ganesh V, Berchmans S. Liquid Crystal (LC) monolayer on indium tin oxide (ITO): structural and electrochemical characterization. RSC Adv. 2014;4:16409–16417.
  • Umadevi S, Sundari S, Ganesh V, et al. Liquid crystal-gold nanoparticle composite-modified Indium Tin Oxide (ITO) substrates and their electrochemical characterisation. Liq Cryst. 2017;44:2222–2229.
  • Cha YJ, Gim MJ, Oh K, et al. In-plane switching mode for liquid crystal displays using a DNA alignment layer. ACS Appl Mater Interfaces. 2015;7:13627–13632.
  • Lin HC, Wang CH, Wang JK, et al. Fast response and spontaneous alignment in liquid crystals doped with 12-hydroxystearic acid gelators. Materials. 2018;11:745.
  • Chandrashekhar CH, Park SJ. Homeotropic alignment of liquid crystals on ITO surface using LBL assembly. J Soc Inf Disp. 2018;26:413–418.
  • Kumar P, Oh SY, Baliyan VK, et al. Topographically induced homeotropic alignment of liquid crystals on self-assembled opal crystals. Opt Express. 2018;26:8385–8396.
  • Chinky, Kumar P, Sharma V, Malik P, et al. Nano particles induced vertical alignment of liquid crystal for display devices with augmented morphological and electro-optical characteristics. J Mol Struct. 2019;1196:866–873.
  • Walba DM, Liberko CA, Korblova E, et al. Self-assembled monolayers for liquid crystal alignment: simple preparation on glass using alkyltrialkoxysilanes. Liq Cryst. 2004;31:481–489.
  • Zou L, Wang J, Beleva VJ, et al. Langmuir monolayers of bent-core molecules. Langmuir. 2004;20:2772–2780.
  • Wang J, Zou L, Jakli A, et al. Anisotropy in Langmuir Layers of a Bent-Core Liquid Crystal. Langmuir. 2006;22:3198–3206.
  • Scheres L, Achten R, Giesbers M, et al. Covalent attachment of bent-core mesogens to silicon surfaces. Langmuir. 2009;25:1529–1533.
  • Senyuk B, Kim YK, Tortora L, et al. Surface alignment, anchoring transitions, optical properties and topological defects in nematic bent-core materials C7 and C12. Mol Cryst Liq Cryst. 2011;540:20–41.
  • Son JH, Zin WC, Takezoe H, et al. Alignment of liquid crystals using a molecular layer with patterned molecular density. Adv Mater. 2012;24:6105–6110.
  • Kundu S, Lee MH, Lee SH, et al. In situ homeotropic alignment of nematic liquid crystals based on photoisomerization of Azo-dye, physical adsorption of aggregates and consequent topographical modification. Adv Mater. 2013;25:3365–3370.
  • Kim KH, Park BW, Choi SW, et al. Vertical alignment of liquid crystals without alignment layers. Liq Cryst. 2013;40:391–395.
  • Sivaranjini B, Mangaiyarkarasi R, Ganesh V, et al. Vertical alignment of liquid crystals over a functionalized flexible substrate. Sci Rep. 2018;8:8891.
  • Sivaranjini B, Ganesh V, Umadevi S. Bent-core liquid crystal-functionalised flexible polymer substrates for liquid crystal alignment. Liq Cryst. 2020;47:838–850.
  • Sivaranjini B, Mohana K, Esakkimuthu S, et al. Photo-responsive azo-functionalised flexible polymer substrate for liquid crystal alignment. Liq Cryst. 2020;47:1354–1365.
  • Li JF, Wang L, Liu J, et al. Characterization of transparent conducting oxide surfaces using self-assembled electroactive monolayers. Langmuir. 2008;24:5755–5765.
  • Hatton RA, Day SR, Chesters MA, et al. Organic electroluminescent devices: enhanced carrier injection using an organosilane self-assembled monolayer (SAM) derivatized ITO electrode. Thin Solid Films. 2001;394:292–297.
  • Chockalingam M, Darwish N, Saux GL, et al. Importance of the indium tin oxide substrate on the quality of self-assembled monolayers formed from organophosphonic acids. Langmuir. 2011;27:2545–2552.
  • Muthurasu A, Ganesh V. Electrochemical characterization of self-assembled monolayers (SAMs) of silanes on indium tin oxide (ITO) electrodes-tuning electron transfer behaviour across electrode-electrolyte interface. J Colloid Interface Sci. 2012;374:241–249.
  • Dierking I. Textures of liquid crystals. Weinheim: Wiley-VCH; 2003. p. 1–233.
  • Choudhary K, Gupta RK, Pratibha R, et al. Alignment of liquid crystals using Langmuir-Blodgett films of unsymmetrical bent-core liquid crystals. Liq Cryst. 2019;46:1494–1504.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.