Structural studies on picolinium maleate crystal by density functional methods

Gunasekaran, S.; Kannan, Kurunthachalam; Loganathan, S.; Anand, G. Theophil; Kumaresan, S.

doi:10.1007/s12648-013-0363-8

Cited by 53 publications

(2 citation statements)

References 26 publications

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“…This is due to their unique properties such as light weight, high flexibility, and ability to be fabricated at low temperature and low cost. There are several organic dielectric materials that have been studied for optical, electrical and photonic applications [3,4]. Some of these are polyvinyl phenol, polyimide, polymethylmethacrylate, poly carbonate, polystyrene, polyethersulfone etc.…”

Section: Introductionmentioning

confidence: 99%

Analyzing the Effect of Doping Concentration on Dielectric Properties of Polymeric Films

Tyagi¹,

Negi²,

Pant³

2014

JMPC

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In the present study two organic guest host system are being explored for electronic applications based on 2-methyl 4-nitroaniline (2-mNA)/polymethylmethacrylate (PMMA) and 2-mNA/ polyethersulfone (PES). Freestanding poled polymeric films have wide applications in nonlinear optics and in various photonics applications. Exploring dielectric capability of these films can be beneficial for many opto, electro and photonic applications. Low power loss is an essential characteristic for any electronic element and has been a challenging job for researchers and scientists. Forwarding in this direction, this paper focuses on capacitance of unpoled and poled polymeric films. Dissolving limit of guest material into polymer without showing any segration of guest material has been optimized for both host polymers. Capacitance is measured with different dose of 2-mNA by using 4294A Agilent Impedance Analyzer at room temperature. Here we are only manipulating the results that are optimized at 1K Hz frequency. It is observed that capacitance increases with increasing 2-mNA content into polymer but PMMA/2-mNA system shows more dielectric strength than PES/2-mNA system. The impact of half an hour contact poling by using 6KV/cm DC electric field at 120°C temperature on dielectric capability is also optimized. It is observed that how; to be poled the guest host films can affect the dielectric strength of both polymeric systems. Without describing electric power consumption in terms of power loss, electrical quality of any component is incomplete. Thatswhy dissipation factor have been evaluated for both guest host system at 1K Hz frequency. Dissipation factor rises with the 2-mNA doping concentration but after poled the films, it reduces drastically. PES/2-mNA system showed low power loss than PMMA/2-mNA system. The structural characterizations of all films are carried out by XRD, which shows an amorphous nature of PES/2-mNA and PMMA/2-mNA film samples. Absorbance measured by UV-Vis Spectroscopy reveals that undoped film samples has high transmittance in the UV-Vis region and doped film samples shows absorption band up to 450 nm. The films are characterized by Scanning Electron Microscopy and FT-IR Spectroscopy for bulk properties evaluation.

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Section: Introductionmentioning

confidence: 99%

Analyzing the Effect of Doping Concentration on Dielectric Properties of Polymeric Films

Tyagi¹,

Negi²,

Pant³

2014

JMPC

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“…Organic materials are of higher extent than the associated other types of materials and having better scope in application side. [1][2][3][4][5] The organic materials are having great quantity contour based on the ordered structures, anisotropic-physical characters, [6][7][8][9][10] proper value of the study of luminescence as well as high carriers mobility are considered for futuristic scope for organic opto-electronic use. [7][8][9][10][11][12] Organic crystalline substances encompass numerous relevancy in their optical; electronic engineering which include light-emitting diodes, transistors, as well as solar cells and so on.…”

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confidence: 99%

Synthesis, Characterizations of HDTDHP Macro-Crystals by Experimental-Electrical, Electronic and Computational Structural Proviso for Opto-Electronic and Photonic Utilities

Balamurugapandian,

Lavanya,

Senthil Kannan

et al. 2023

ECS J. Solid State Sci. Technol.

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The 7-hydroxy-2,4-dimethoxy-9,10-dihydrophenanthrene-HDTDHP crystal is well-grown within a period of 22 days and is a monoclinic type of system of crystals with space group P21/n. The CHNSO methodology shows the formation of the entitled compound; the HDTDHP is RISE effect type of crystals with the Vicker’s proviso. The surface morphology of HDTDHP crystal is analyzed for macro scale as 200 μm scaling respectively as per SEM study. The higher amount of the dielectric constant at lower frequencies is by the existence of all polarizations; also, the dielectric loss is getting decreased with increase in temperature. The electronic filter use is 3.9987 microns for macro-influx as opto-electronic, extensive NLO type uses; as observed from UV-Visible spectrum from the cut-off and wavelength range of HDTDHP with % transmittance. The frequency doubling and tripling of the macro sample is analyzed in continuation of the Z scan and SHG of the NLO class and confirms the proper electronic functionalities. The HDTDHP crystalline sample is mainly used as photonic-macro level tool, in filters as macro-influx portrayal, in NLO utility as opto-electronic tool by the transmittance data as well as by Z scan and in frequency enhancers and projective use in displays.

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