Low-order optical nonlinearities of PbS quantum dot liquids and films

Ganeev, R. A.; Shuklov, Ivan A.; Zvyagin, A. I.; Dyomkin, Dmitry V.; Bocharova, S. I.; Popov, V. S.; Toknova, V. F.; Лизунова, А. А.; Ovchinnikov, O. V.; Разумов, В. Ф.

doi:10.1016/j.optmat.2021.111499

Cited by 9 publications

(3 citation statements)

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“…PbS QDs can also be considered as almost centrosymmetric species. Their low-order nonlinear optical properties were analyzed in [ 18 ]. Though those studies have shown that the larger PbS QDs (9 nm) demonstrate stronger nonlinear optical effects, such as nonlinear refraction and nonlinear absorption, compared with the smaller QDs (2.5 nm), no THG was reported in the case of those two groups of QDs.…”

Section: Discussionmentioning

confidence: 99%

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Quantum-Dot-Induced Modification of Surface Functionalization for Active Applications of Whispering Gallery Mode Resonators

et al. 2023

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Quantum dots can modify the properties of the whispering gallery mode resonators (WGMRs) used in various potential applications. A deposition of a suitable nanomaterial for the surface functionalization of WGMRs allows for the achievement of high quality (Q) factors. Here, we show that the WGMR surface can be functionalized using quantum dots. We demonstrate that WGMRs covered with thin layers of HgS and PbS quantum dots are suitable for third-harmonic generation due to the high Q factor of the developed microresonators, thus significantly lowering the pumping power required for nonlinear optical interactions.

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Section: Discussionmentioning

confidence: 99%

“…The details of the synthesis of HgS and PbS QDs were described elsewhere [ 17 , 18 ]. The initial concentrations of the quantum dot colloidal solutions were approximately similar (≈4 × 10 −5 M).…”

Section: Methodsmentioning

confidence: 99%

Quantum-Dot-Induced Modification of Surface Functionalization for Active Applications of Whispering Gallery Mode Resonators

et al. 2023

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“…[2] Lead sulfide (PbS) is a member of IV-VI group chalcogenide semiconductors has optical and optoelectronic characteristics made it able to be used in solar cells, optoelectronic devices, photoconductors, sensors, and infrared detector devices applications. [3] Nanocomposites of different oxides and/or sulfides reveal the interesting characteristics as compared with those of parent compounds. For instant, the 304 stainless steel was protected upon being coated by MnS/TiO 2 nanotube films under simulated solar light.…”

Section: Introductionmentioning

confidence: 99%

Exploration of structural, optical, and photoluminescent properties of (1 – x)NiCo₂O₄/xPbS nanocomposites for optoelectronic applications

2022

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(1-x)NiCo2O4/xPbS (0≤x≤0.2) nanocomposite samples were synthesized using the hydrothermal and thermolysis procedures. The different phases developed in the obtained nanocomposite samples were accurately determined using the x-ray diffraction technique equipped with a line-detector. The percentage of the formed phases (NiCo2O4 (NCO), PbS, PbSO4), structural and microstructure parameters were determined using Rietveld quantitative phase analysis. The transmission electron microscope (TEM) images and Rietveld analysis reveal almost isotropic particle size in the nano range with a very narrow size distribution. The obtained phase percentages of PbS and PbSO4 are smaller than nominated values (x) suggesting dissolving of some Pb and S ions in NCO which then confirmed by the analysis of Fourier-transform infrared (FTIR) spectra of nanocomposite samples. The absorption spectra are modified upon doping NCO with PbS. The optical band gaps of the nanocomposites increase as the amount of PbS is increased. The effect of alloying on extinction coefficient, refractive index, dielectric constant, optical conductivity, the intensity, and emitted color from the photoluminescence of the nanocomposite samples are also studied. The refractive index values of NCO and NCO-PbS nanocomposite samples exhibit normal dispersions. The photoluminescent measurements reveal that NCO-PbS nanocomposites could emit a violet color. The improvement in the values of the non-linear optical (NLO) parameters of pristine NCO at high frequencies or the nanocomposite samples at low frequencies, nominated them to be used in NLO photonic applications.

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First-principles calculations of transport properties in lead-based nanomaterials: A mini review

Zhang

2024

Computational Materials Science

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Low-order optical nonlinearities of PbS quantum dot liquids and films

Cited by 9 publications

References 44 publications

Quantum-Dot-Induced Modification of Surface Functionalization for Active Applications of Whispering Gallery Mode Resonators

Quantum-Dot-Induced Modification of Surface Functionalization for Active Applications of Whispering Gallery Mode Resonators

Exploration of structural, optical, and photoluminescent properties of (1 – x)NiCo₂O₄/xPbS nanocomposites for optoelectronic applications

First-principles calculations of transport properties in lead-based nanomaterials: A mini review

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Low-order optical nonlinearities of PbS quantum dot liquids and films

Cited by 9 publications

References 44 publications

Quantum-Dot-Induced Modification of Surface Functionalization for Active Applications of Whispering Gallery Mode Resonators

Quantum-Dot-Induced Modification of Surface Functionalization for Active Applications of Whispering Gallery Mode Resonators

Exploration of structural, optical, and photoluminescent properties of (1 – x)NiCo2O4/xPbS nanocomposites for optoelectronic applications

First-principles calculations of transport properties in lead-based nanomaterials: A mini review

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Exploration of structural, optical, and photoluminescent properties of (1 – x)NiCo₂O₄/xPbS nanocomposites for optoelectronic applications