Growth and spectroscopic characterization of a new organic nonlinear optical crystal—8-hydroxyquinoline

Krishnakumar, V.; Nagalakshmi, R.; Janaki, P.

doi:10.1016/j.saa.2004.06.029

Cited by 54 publications

(21 citation statements)

References 5 publications

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“…We can observe some differences in the intensity of the individual peaks (the peaks were indexed according to JCPDS 39-1857) for powder and wire samples, which is due to the fact that wires exhibit a preferential growth direction. Preferential growth direction was also observed in macroscopic HQ crystals grown from solvents, although reported crystal structure in that case is different (monoclinic) [8], which is likely due to the fact that organic molecules (including Alq 3 ), frequently exist in different polymorphs [22].…”

Section: Resultsmentioning

confidence: 87%

“…However, the temperature range for the decomposition of hydrated Alq 3 was reported to be 265-600 C [7]. While the presence of HQ in Alq 3 -based OLEDs is detrimental, this material has potential uses as nonlinear optical crystal [8], corrosion inhibitor [9,10], chelating agent [11][12][13] and antimicrobial agent [11,13], in addition to its common use in Alq 3 synthesis [14]. Thus, due to a variety of technological applications of HQ, the synthesis of the novel morphologies of HQ and study of their properties is of interest.…”

Section: Introductionmentioning

confidence: 99%

“…The growth of nanowires of other quinoline derivatives, such as cadmium (II) (HQ) chloride, has also been reported [23]. However, studies of the properties of HQ have been scarce [2,8,9,12,13,24,25]. Unlike Alq 3 , HQ decomposes at lower temperatures, with degradation starting at 120 C [9].…”

Section: Introductionmentioning

confidence: 99%

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Preparation of 8-hydroxyquinoline wires by decomposition of tris(8-hydroxyquinoline) aluminium

Fung

Djurišić

et al. 2012

Journal of Experimental Nanoscience

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We fabricated 8-hydroxyquinoline (HQ) wires by two methods, decomposition of tris(HQ) aluminium at low pressure in a tube furnace and heating of HQ powder at atmospheric pressure. Fabricated wires were crystalline, and exhibited the same optical properties (absorption and photoluminescence) as HQ powder. While the properties of wires prepared by two different methods were the same, it should be noted that synthesis by decomposition of tris(HQ) aluminium required elimination of mechanical vibration of the growth tube. Implications of decomposition of tris(HQ) aluminium during organic vapour phase deposition growth on organic optoelectronic device performance are discussed.

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Section: Resultsmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

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Preparation of 8-hydroxyquinoline wires by decomposition of tris(8-hydroxyquinoline) aluminium

Fung

Djurišić

et al. 2012

Journal of Experimental Nanoscience

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“…Such type of crystals with high conversion efficiencies for second harmonic generation (SHG), third harmonic generation (THG) and transparent in visible and ultraviolet ranges are needed for various device applications [1][2][3]. During the last two decades a lot of progress has been made in the development of these nonlinear optical materials (NLO).…”

Section: Introductionmentioning

confidence: 99%

“…Generally the NLO materials with large second order nonlinearities and stable physicochemical properties are required in order to realize many of their applications [4]. Purely inorganic NLO materials typically have excellent mechanical and thermal properties but they possess relatively modest optical nonlinearity because of the lack of extended-electron delocalization [3]. Therefore, an extensive research work was carried out on organic NLO materials due to fast and high nonlinear response over a wide frequency range, easy synthesis and high optical damage threshold.…”

Section: Introductionmentioning

confidence: 99%

Characteristics and quality of grown potassium thiourea iodide crystal for second harmonic generation

Ahlawat

Kumar

Ahlawat

et al. 2015

J Mater Sci: Mater Electron

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A desirable quality bulk single crystal of a novel organometalic nonlinear optical material of potassium thiourea iodide measuring 20 9 10 9 6 mm 3 have been grown successfully from solution by slow evaporation method. The solubility curve of this material has been determined in double distilled water which is the most suitable solvent. The diffraction curve by HRXRD method corresponds to (531) plane of the tetragonal crystal. This paper reports vacancy type of point defects in the grown crystal by high resolution XRD method. Entrapped impurities during the crystal growth process are also reported. A stable-small and nearly same value of dielectric loss at four different temperatures in the high frequency range indicates comparatively better quality assessment of the grown crystal. Powder XRD and a.c. conductivity measurements are also carried out. The results of dielectric studies at four different temperatures indicate that the grown crystal is a promising optical material for photo induced second harmonic generation in laser physics.

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Ultrasensitive Biomolecule‐Less Nanosensor Based on β‐Cyclodextrin/Quinoline Decorated Graphene Oxide toward Prompt and Differentiable Detection of Corona and Influenza Viruses

Hashemi

Bahrani

Mousavi

et al. 2021

Adv Materials Technologies

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Rapid mutation of airborne pathogenic viruses, e.g., SARS‐CoV‐2, and their similar symptoms with flu or influenza, raises an urgent demand for the development of biomolecule‐less nanosensors capable of rapid, sensitive, specific, and differentiable detection of viruses in a single potential window to distinguish infected people from healthy ones through a precise and prompt manner that do not require highly purified biological receptors. To address this vital requirement, a label‐free, and biomolecule‐less nanosensor is designed and developed based on the modified graphene oxide (GO) with NHS/EDC activated β‐cyclodextrin/8 hydroxyquinoline (8HQ) complex toward rapid (in 1 min) and differentiable detection of betacoronaviruses (viz., SARS‐CoV‐2) and influenza viruses (viz., H1N1 and H3N2) in a single potential window. The outcome of the process shows that the employed process leads to considerable soar in the electrical conductivity, porosity, active surface area, available active sites for trapping viruses, and sensitivity of the nanosensor that leads to rapid, sensitive, specific, and simultaneous detection of selected pathogenic viruses with a superiorly low detection limit (DL) and high sensitivity. Obtained results highlight the potential of the developed nanoplatform as a capable screening tool for quick detection of infected people.

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Growth and spectroscopic characterization of a new organic nonlinear optical crystal—8-hydroxyquinoline

Cited by 54 publications

References 5 publications

Preparation of 8-hydroxyquinoline wires by decomposition of tris(8-hydroxyquinoline) aluminium

Preparation of 8-hydroxyquinoline wires by decomposition of tris(8-hydroxyquinoline) aluminium

Characteristics and quality of grown potassium thiourea iodide crystal for second harmonic generation

Ultrasensitive Biomolecule‐Less Nanosensor Based on β‐Cyclodextrin/Quinoline Decorated Graphene Oxide toward Prompt and Differentiable Detection of Corona and Influenza Viruses

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