Structural and optical investigations of ZnS quantum dots: influence of pH value

Abimaheshwari, R.; Sakthivel, P.; Vijayasundaram, S. V.

doi:10.1007/s12648-022-02337-9

Cited by 14 publications

(1 citation statement)

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“…Since the absorption along the whole visible region was low, it substantiates the eligibility for the production of nonlinear optical devices [22]. Figure 5 depicts Tauc's plot [23] that was created between (αhv) 2 and (hν). The linear section of the picture was extrapolated to determine the band gap of the produced material, which was found to be 4.75 eV.…”

Section: Uv-visible Spectra: Investigationmentioning

confidence: 67%

A Facile Growth, Optical Behavior of Organic Nonlinear Optical Crystal—4-Bromo-2-Methylbenzonitrile

Pandurengan

et al. 2023

Preprint

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By slowly evaporating 4-bromo-2-methylbenzonitrile at room temperature, it was possible to make a single organic nonlinear optical crystal. The grown crystal's crystalline nature was verified, and the unit cell characteristics are provided as a = 4.08Å, b = 6.61 Å, c = 28.93Å, α = 90º, β = 90º, γ = 90º. The functional groups of the crystal produced were identified using the FTIR and FT-Raman spectra. The UV cutoff wavelength is found at 221.6 nm, and the transparency nature of the crystal was analyzed in the optical studies. The band gap of the grown crystal was estimated using the Taucs’ plot. The violet and red emissions of photoluminescence are discussed. A high dielectric constant was received at a low frequency. The TG/DTA curve shows that the grown crystal was stable up to 125.59 ºC. The Kurtz-Perry powder technique was applied to confirm the Second Harmonic Generation's (SHG) nature. By using the agar diffusion method, the antibacterial property of the grown 4B2MBN crystal was determined.

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Section: Uv-visible Spectra: Investigationmentioning

confidence: 67%