Microstructural parameters and high third order nonlinear absorption characteristics of Mn-doped PbS/PVA nanocomposite films

Ramezanpour, B.; Chenari, Hossein Mahmoudi; Sadigh, M. Khadem

doi:10.1016/j.optmat.2017.08.012

Cited by 10 publications

(1 citation statement)

References 32 publications

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“…В свою очередь сульфид свинца является полупроводниковым материалом с крайне малой шириной запрещенной зоны (0.41 эВ, 300 K). Он привлекает внимание разнообразием потенциальных применений в оптике [23][24][25][26][27]. КТ PbS поглощают и излучают в спектральных диапазонах 700−900 и 1200−1600 нм соответственно.…”

Section: Introductionunclassified

Фотолюминесценция квантовых точек (Zn, Pb, Mn)S в полиакрилатной матрице

Исаева¹,

Smagin²

2020

Физика И Техника Полупроводников

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Solutions of quantum dots (Zn,Pb,Mn)S with different mole ratio of cations were obtained by colloidal synthesis in methyl methacrylate (MMA) medium. By thermal polymerization of MMA in the block, colloidal solutions are transferred to the glassy state. The optical transparency of PMMA/(Zn,Pb,Mn)S compositions at wavelengths >500 nm reaches 90% with the thickness of the absorbing layer up to 5 mm. Photoluminescence of compositions in the spectral region of 400–480 nm is associated with electron recombination at the levels of defects in the crystal structure of ZnS, in the range of 520–620 nm with 4T1 → 6A1 electron transition in Mn2+ ions. Excitation of photoluminescence occurs as a result of interband transitions in ZnS and energy transfer from the conduction band of ZnS to Mn2+ ion levels. The luminescence spectrum depends on the molar ratio of Mn2+ and Pb2+ ions, the sequence of introduction of the components into the reaction mixture, the wavelength of the exciting radiation.

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Section: Introductionunclassified

Фотолюминесценция квантовых точек (Zn, Pb, Mn)S в полиакрилатной матрице

Исаева¹,

Smagin²

2020

Физика И Техника Полупроводников

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Effect of nano CdS/Mg on linear and nonlinear optical characteristic of PVA/PVP/PEG film

El‐Naggar

Mohamed²,

Kamal³

2022

J Mater Sci: Mater Electron

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Boosting the nonlinear optical absorption of graphene oxide, and gold nanorods by tailoring graphene oxide-gold nanorods hybrids

Salah,

Hassab-Elnaby,

Ramadan

2023

SN Appl. Sci.

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Tailoring efficient nonlinear optical materials continues to be a topic of great interest in the scientific field. In this paper, we study the nonlinear response of graphene oxide nanosheets GO, gold nanorods AuNRs, and graphene oxide/gold nanorods hybrid nanocomposite GO@AuNRs respectively, GO was prepared by modified Hummer method while AuNRs were prepared by the seed-mediated method and GO@AuNRs prepared by simple ex-situ method. The nonlinear absorption was measured via open aperture Z scan using nanosecond pulses at 532 nm, The nonlinear absorption coefficients were measured for the proposed materials in colloidal and polymeric forms. The results show an enhancement of the nonlinear absorption and optical limiting of GO@AuNRs over GO and AuNRs. Furthermore, enhanced optical nonlinearity and stability are achieved in polymeric form compared to colloidal forms. These materials could potentially be used in optical limiting applications and photonic devices.

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Microstructural parameters and high third order nonlinear absorption characteristics of Mn-doped PbS/PVA nanocomposite films

Cited by 10 publications

References 32 publications

Фотолюминесценция квантовых точек (Zn, Pb, Mn)S в полиакрилатной матрице

Фотолюминесценция квантовых точек (Zn, Pb, Mn)S в полиакрилатной матрице

Effect of nano CdS/Mg on linear and nonlinear optical characteristic of PVA/PVP/PEG film

Boosting the nonlinear optical absorption of graphene oxide, and gold nanorods by tailoring graphene oxide-gold nanorods hybrids

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