Formation of nano-wire and ring-like microstructures in LC media via self-assembly of NiO quantum dots and investigation of their optoelectronic properties

被引:0
作者
Singh, Archana Kumari [1 ]
Singh, Satya Pal [1 ]
机构
[1] Madan Mohan Malaviya Univ Technol, Dept Phys & Mat Sci, Condensed Matter Phys & Nanosci Res Lab, Gorakhpur 273010, UP, India
关键词
Nanodot wires; Self; -assembly; Optical microscopy; Fluorescence spectrum; UV; -Vis-nir; FTIR; Raman spectroscopy; XRD; FESEM-EDX; NANOPARTICLES; NANOWIRES;
D O I
10.1016/j.physb.2023.415593
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Nickel oxide nano-dot wire and ring like structures were synthesized via self-assembly of nickel-oxide quantum dots in the presence of liquid crystal media. The sizes of the ring-like microstructures extend up-to a few tens of microns. After doping NiO QDs in 4-(trans-4-n-hexylcyclohexyl) isothiocyanatobenzoate (6CHBT), we characterize the LC and quantum dot hybrid system using optical microscopy, fluorescence, UV-vis-nir, FTIR, FESEMEDX and Raman spectroscopy methods. The sizes of the synthesized NiO QDs are observed in the range of 5.38 nm-10.17 nm. Our FTIR data confirms for the purity as well as the nonbonding interactions of NiO NPs and LC molecules with each other. We have used theoretical models based on nanoscale principles to further validate our experimental findings. The predictive theoretical model match with the experimentally obtained particle size data and the corresponding band gap values for the case of spherical NiO nanoparticles very well. The band gap value of the hybrid system corresponds to spherical nanoparticle clusters of sizes 25 nm. This allows us to estimate the effective size of the nanoclusters of NiO QDs in the hybrid system. We have correlated the findings of fluorescence, Raman and optical microscopy to verify the formation of nanodot wires and nanodot-ring like microstructures in LC media. FESEM images further confirm for the formation of NiO nanodot-wire-like structures and presence of LC molecules anchoring over nano-dot hierarchical structures. Elemental analysis done using EDX, confirm for the presence of LC molecules and NiO.
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页数:15
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共 49 条
[11]   Size Effects on Properties of NiO Nanoparticles Grown in Alkalisalts [J].
Duan, W. J. ;
Lu, S. H. ;
Wu, Z. L. ;
Wang, Y. S. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (49) :26043-26051
[12]   The effect of electrodeposition potential on catalytic properties of Ni nanoparticles for hydrogen evolution reaction (HER) in alkaline media [J].
El-Hallag, Ibrahim ;
Elsharkawy, Safya ;
Hammad, Sherin .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2022, 52 (06) :907-918
[13]   Fabrication of novel SnWO4/ZnO using Muntingia calabura L. leaf extract with enhanced photocatalytic methylene blue degradation under visible light irradiation [J].
Elviera ;
Yulizar, Yoki ;
Apriandanu, Dewangga Oky Bagus ;
Surya, Rizki Marcony .
CERAMICS INTERNATIONAL, 2022, 48 (03) :3564-3577
[14]   Advances in multicomponent systems: Liquid crystal/nanoparticles/ polymer [J].
Gridyakina, Aleksandra ;
Kasian, Natalia ;
Lowski, Mi losz S. Chych ;
Kajkowska, Marta ;
Lesiak, Piotr .
MATERIALS TODAY PHYSICS, 2023, 38
[15]   Facile preparation of CuO-Gd2Ti2O7 using Acmella uliginosa leaf extract for photocatalytic degradation of malachite green [J].
Halomoan, Ivan ;
Yulizar, Yoki ;
Surya, Rizki Marcony ;
Apriandanu, Dewangga Oky Bagus .
MATERIALS RESEARCH BULLETIN, 2022, 150
[16]   Metal nanowires for transparent conductive electrodes in flexible chromatic devices: a review [J].
Huang, Shengyun ;
Liu, Yannan ;
Yang, Fan ;
Wang, Yong ;
Yu, Ting ;
Ma, Dongling .
ENVIRONMENTAL CHEMISTRY LETTERS, 2022, 20 (05) :3005-3037
[17]   One-pot green fabrication of BiFeO3 nanoparticles via Abelmoschus esculentus L. leaves extracts for photocatalytic dye degradation [J].
Indriyani, Asih ;
Yulizar, Yoki ;
Yunarti, Rika Tri ;
Apriandanu, Dewangga Oky Bagus ;
Surya, Rizki Marcony .
APPLIED SURFACE SCIENCE, 2021, 563
[18]   Simultaneous in situ formation of ZnS nanowires in a liquid crystal template by γ-irradiation [J].
Jiang, X ;
Xie, Y ;
Lu, J ;
Zhu, LY ;
He, W ;
Qian, YT .
CHEMISTRY OF MATERIALS, 2001, 13 (04) :1213-1218
[19]   Raman spectral probed electron-phonon coupling and phonon lifetime properties of Ni-doped CuO nanoparticles [J].
Karthikeyan, B. .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2021, 127 (03)
[20]   Nickel Oxide Nanoparticles Doped Liquid Crystal System for Superior Electro-Optical Properties [J].
Lee, Hak Moo ;
Chung, Hyung-Koo ;
Park, Hong-Gyu ;
Jeong, Hae-Chang ;
Kim, Jeong-Hwan ;
Park, Tae-Kyu ;
Seo, Dae-Shik .
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2015, 15 (10) :8139-8143