Publication

Influence of ZnO nanostructures in liquid crystal interfaces for bistable switching applications

Pal, K., Zhan, B., Mohan, M. L. N. M., Schirhagl, R. & Wang, G., 1-Dec-2015, In : Applied Surface Science. 357, B, p. 1499-1510 12 p.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Pal, K., Zhan, B., Mohan, M. L. N. M., Schirhagl, R., & Wang, G. (2015). Influence of ZnO nanostructures in liquid crystal interfaces for bistable switching applications. Applied Surface Science, 357(B), 1499-1510. https://doi.org/10.1016/j.apsusc.2015.09.229

Author

Pal, Kaushik ; Zhan, Bihong ; Mohan, M. L. N. Madhu ; Schirhagl, Romana ; Wang, Guoping. / Influence of ZnO nanostructures in liquid crystal interfaces for bistable switching applications. In: Applied Surface Science. 2015 ; Vol. 357, No. B. pp. 1499-1510.

Harvard

Pal, K, Zhan, B, Mohan, MLNM, Schirhagl, R & Wang, G 2015, 'Influence of ZnO nanostructures in liquid crystal interfaces for bistable switching applications', Applied Surface Science, vol. 357, no. B, pp. 1499-1510. https://doi.org/10.1016/j.apsusc.2015.09.229

Standard

Influence of ZnO nanostructures in liquid crystal interfaces for bistable switching applications. / Pal, Kaushik; Zhan, Bihong; Mohan, M. L. N. Madhu; Schirhagl, Romana; Wang, Guoping.

In: Applied Surface Science, Vol. 357, No. B, 01.12.2015, p. 1499-1510.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Pal K, Zhan B, Mohan MLNM, Schirhagl R, Wang G. Influence of ZnO nanostructures in liquid crystal interfaces for bistable switching applications. Applied Surface Science. 2015 Dec 1;357(B):1499-1510. https://doi.org/10.1016/j.apsusc.2015.09.229


BibTeX

@article{1cfe65948b9c4a8b92fd7869dc90504e,
title = "Influence of ZnO nanostructures in liquid crystal interfaces for bistable switching applications",
abstract = "The controlled fabrication of nanometer-scale objects is without doubt one of the central issues in current science and technology. In this article, we exhibit a simple, one-step bench top synthesis of zinc oxide nano-tetrapods and nano-spheres which were tailored by the facial growth of nano-wires (diameter approximate to 24 nm; length approximate to 118 nm) and nano-cubes (approximate to 395 nm edge) to nano-sphere (diameter approximate to 585 nm) appeaded. The possibilities of inexpensive, simple solvo-chemical synthesis of nanostructures were considered. In this article, a successful attempt has been made that ZnO nano-structures dispersed on well aligned hydrogen bonded liquid crystals (HBLC) comprising azelaic acid (AC) with p-n-alkyloxy benzoic acid (nBAO) by varying the respective alkyloxy carbon number (n=5). The dispersion of nanomaterials with HBLC is an effective route to enhance the existing functionalities. A series of these composite materials were analyzed by polarizing optical microscope's electro-optical switching. An interesting feature of AC + nBAO is the inducement of tilted smectic G phase with increasing carbon chain length. Phase diagrams of the above hybrid ZnO nanomaterial influenced LC complex and pure LC were constructed and compared. The switching times, the contrast ratio and spontaneous polarization of the nanostructures-HBLC composite film were carried out by systematic investigation. The sample preparation parameters, such as the curing time and curing intensity were optimized. The critical applied voltage to achieve the switching bi-stability of our device is only 4.5 V, which is approximately twice its threshold voltage for Freedericksz transition. This performance puts the hybrid structure at the top level in the state of the art in application oriented research in optics of liquid crystalline composite materials. (C) 2015 Elsevier B.V. All rights reserved.",
keywords = "ZnO nano structures, Hydrogen bonded liquid crystals, Electro-optical switching, VIBRATIONAL-SPECTRA, CDS NANOSTRUCTURES, OXIDE NANOBELTS, SIDE-CHAIN, DENSITY, NANOWIRES, BEHAVIOR, POLYMER, GROWTH, PHASE",
author = "Kaushik Pal and Bihong Zhan and Mohan, {M. L. N. Madhu} and Romana Schirhagl and Guoping Wang",
year = "2015",
month = "12",
day = "1",
doi = "10.1016/j.apsusc.2015.09.229",
language = "English",
volume = "357",
pages = "1499--1510",
journal = "Applied Surface Science",
issn = "0169-4332",
publisher = "ELSEVIER SCIENCE BV",
number = "B",

}

RIS

TY - JOUR

T1 - Influence of ZnO nanostructures in liquid crystal interfaces for bistable switching applications

AU - Pal, Kaushik

AU - Zhan, Bihong

AU - Mohan, M. L. N. Madhu

AU - Schirhagl, Romana

AU - Wang, Guoping

PY - 2015/12/1

Y1 - 2015/12/1

N2 - The controlled fabrication of nanometer-scale objects is without doubt one of the central issues in current science and technology. In this article, we exhibit a simple, one-step bench top synthesis of zinc oxide nano-tetrapods and nano-spheres which were tailored by the facial growth of nano-wires (diameter approximate to 24 nm; length approximate to 118 nm) and nano-cubes (approximate to 395 nm edge) to nano-sphere (diameter approximate to 585 nm) appeaded. The possibilities of inexpensive, simple solvo-chemical synthesis of nanostructures were considered. In this article, a successful attempt has been made that ZnO nano-structures dispersed on well aligned hydrogen bonded liquid crystals (HBLC) comprising azelaic acid (AC) with p-n-alkyloxy benzoic acid (nBAO) by varying the respective alkyloxy carbon number (n=5). The dispersion of nanomaterials with HBLC is an effective route to enhance the existing functionalities. A series of these composite materials were analyzed by polarizing optical microscope's electro-optical switching. An interesting feature of AC + nBAO is the inducement of tilted smectic G phase with increasing carbon chain length. Phase diagrams of the above hybrid ZnO nanomaterial influenced LC complex and pure LC were constructed and compared. The switching times, the contrast ratio and spontaneous polarization of the nanostructures-HBLC composite film were carried out by systematic investigation. The sample preparation parameters, such as the curing time and curing intensity were optimized. The critical applied voltage to achieve the switching bi-stability of our device is only 4.5 V, which is approximately twice its threshold voltage for Freedericksz transition. This performance puts the hybrid structure at the top level in the state of the art in application oriented research in optics of liquid crystalline composite materials. (C) 2015 Elsevier B.V. All rights reserved.

AB - The controlled fabrication of nanometer-scale objects is without doubt one of the central issues in current science and technology. In this article, we exhibit a simple, one-step bench top synthesis of zinc oxide nano-tetrapods and nano-spheres which were tailored by the facial growth of nano-wires (diameter approximate to 24 nm; length approximate to 118 nm) and nano-cubes (approximate to 395 nm edge) to nano-sphere (diameter approximate to 585 nm) appeaded. The possibilities of inexpensive, simple solvo-chemical synthesis of nanostructures were considered. In this article, a successful attempt has been made that ZnO nano-structures dispersed on well aligned hydrogen bonded liquid crystals (HBLC) comprising azelaic acid (AC) with p-n-alkyloxy benzoic acid (nBAO) by varying the respective alkyloxy carbon number (n=5). The dispersion of nanomaterials with HBLC is an effective route to enhance the existing functionalities. A series of these composite materials were analyzed by polarizing optical microscope's electro-optical switching. An interesting feature of AC + nBAO is the inducement of tilted smectic G phase with increasing carbon chain length. Phase diagrams of the above hybrid ZnO nanomaterial influenced LC complex and pure LC were constructed and compared. The switching times, the contrast ratio and spontaneous polarization of the nanostructures-HBLC composite film were carried out by systematic investigation. The sample preparation parameters, such as the curing time and curing intensity were optimized. The critical applied voltage to achieve the switching bi-stability of our device is only 4.5 V, which is approximately twice its threshold voltage for Freedericksz transition. This performance puts the hybrid structure at the top level in the state of the art in application oriented research in optics of liquid crystalline composite materials. (C) 2015 Elsevier B.V. All rights reserved.

KW - ZnO nano structures

KW - Hydrogen bonded liquid crystals

KW - Electro-optical switching

KW - VIBRATIONAL-SPECTRA

KW - CDS NANOSTRUCTURES

KW - OXIDE NANOBELTS

KW - SIDE-CHAIN

KW - DENSITY

KW - NANOWIRES

KW - BEHAVIOR

KW - POLYMER

KW - GROWTH

KW - PHASE

U2 - 10.1016/j.apsusc.2015.09.229

DO - 10.1016/j.apsusc.2015.09.229

M3 - Article

VL - 357

SP - 1499

EP - 1510

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

IS - B

ER -

ID: 28506267