Sol–gel synthesis and optical properties of CuGaS2 quantum dots embedded in sodium borosilicate glass

Zhong, Jiasong; Zhao, Hongfeng; Zhang, Chenglong; Ma, Xiaofeng; Pei, Lang; Liang, Xiaojuan

doi:10.1016/j.jallcom.2014.05.045

Cited by 19 publications

(9 citation statements)

References 31 publications

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“…I is associated with nonlinear absorption [31], and can be calculated using Equation (9) [32,33]. Under pico-second or femto-second laser irradiation, when the value of the nonlinear susceptibility χ (3) (esu) is on the order of 10 −12~1 0 −14 , nonlinear absorption is mainly associated with distortion of the electron cloud and with the molecular orientation [26].…”

Section: Discussionmentioning

confidence: 99%

Optical Properties of the Fresnoite Ba2TiSi2O8 Single Crystal

et al. 2017

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Abstract:In this work, using large-sized single crystals of high optical quality, the optical properties of Ba 2 TiSi 2 O 8 were systematically investigated, including transmission spectra, refractive indices and nonlinear absorption properties. The crystal exhibits a high transmittance (>84%) over a wide wavelength range from 340 to 2500 nm. The refractive indices in the range from 0.31256 to 1.01398 µm were measured, and Sellmeier's equations were fitted by the least squares method. The nonlinear absorption properties were studied by using the open-aperture Z-scan technique, with a nonlinear absorption coefficient measured to be on the order of 0.257 cm/GW at the peak power density of 16.4 GW/cm 2 . Such high transmittance and wide transparency indicate that optical devices using the Ba 2 TiSi 2 O 8 crystal can be applied over a wide wavelength range. Furthermore, the small nonlinear absorption observed in Ba 2 TiSi 2 O 8 will effectively increase the optical conversion efficiency, decreasing the generation of laser damage of the optical device.

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Section: Discussionmentioning

confidence: 99%

Optical Properties of the Fresnoite Ba2TiSi2O8 Single Crystal

et al. 2017

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“…Therefore, borosilicate glass is considered a competent base glass to load metal nanoparticles or quantum dots and potential candidate for optoelectronic devices [10]. What is more, the transition process from solution to gel then to sodium borosilicate glass has been studied systematically [32][33][34][35][36][37] by the Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR), hermogravimetry and differential thermal analysis (TG-DTA), and Brunauer-Emmett-Teller (BET) analysis, and the results show that the high temperature thermal saturation, appropriate atmosphere control and heat treatment together contribute greatly to the formation of doped nanoparticles or quantum dots, and the shrinkage of several nanometer porous structured stiff gel into well-densified glass material, with the glass transition temperature between 519 and 565°C.…”

Section: +mentioning

confidence: 99%

“…3. The broad bag-like amorphous diffraction peak in the range of 18°to 25°is caused by the base glass diffraction, which is the characteristic peak of sodium borosilicate glass substrate [34]. The sharp diffraction peak located at 2θ = 38.18°represents (111) crystal plane of the face-centered cubic-structured Au crystalline, and the four relatively small peaks located at 44.39°, 64.58°, 77.55°, and 81.72°can represent the (200), (220), (311), and (222) crystal planes of Au crystalline, respectively.…”

Section: Xrd Studiesmentioning

confidence: 99%

Sol-gel synthesis and third-order optical nonlinearity of Au nanoparticles doped monolithic glass

Gao

Xiang

et al. 2015

Gold Bull

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Gold nanoparticles (Au NPs) doped monolithic and transparent sodium borosilicate glass has been synthesized by both sol-gel and atmosphere control heat treatment methods. Fourier transform infrared (FTIR) spectra in the wavenumber range of 400 to 4000 cm −1 were applied to collect variation information of surface groups of the samples in the sintering process. The microstructure of Au NPs in the glass was characterized by means of X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and high-resolution TEM (HRTEM). Meanwhile, the linear optical properties of the glass were analyzed by UV-vis spectrometer between the wavelength of 300 and 1000 nm, and a broad absorption band around 600 nm was observed. The third-order nonlinear optical properties of the glass were investigated by using Z-scan technique at the wavelength of 800 nm, pulse duration of 190 fs, and repetition rate of 20 Hz. The glass showed saturable absorption and self-focusing nonlinear refraction, and the optical nonlinear susceptibility χ (3) was estimated to be 1.7 × 10 −14 esu, with the single-pulse energy of 1 μJ.

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“…Nanocrystals are currently of incorporating nanocrystals (NCs) into amorphous materials is one of the hot research topics in the field of materials science [1][2][3][4][5][6] because most of the envisioned applications or devices are not based on single-particle NMs or their solutions [7,8]. Glass is usually used as a support or matrix because it is one of the most important integrating optical materials with optical transparency and thermal stability [9].…”

Section: Introductionmentioning

confidence: 99%