Novel Photoluminescent Gold Complexes Prepared at Octanethiol–Water Interfaces: Control of Optical Properties by Addition of Silver Ions

2021 ◽  
Author(s):  
Mio Tameike ◽  
Takuro Niidome ◽  
Yasuro Niidome ◽  
Junichi Kurawaki
Keyword(s):  
Optical Properties ◽  
Silver Ions ◽  
Gold Complexes

Optical properties of ZnO and Al2O3 implanted with silver ions

2014 ◽  
Vol 59 (5) ◽  
pp. 692-695 ◽  
Author(s):  
N. M. Lyadov ◽  
A. I. Gumarov ◽  
V. F. Valeev ◽  
V. I. Nuzhdin ◽  
V. V. Bazarov ◽  
...  
Keyword(s):  
Optical Properties ◽  
Silver Ions

scholarly journals Growth of Ag-Nanoparticles: Shape-Directing Role of Silver Ions and Stabilizer in Aqueous Solutions

2010 ◽  
Vol 6 (3) ◽  
pp. 1049-1058
Author(s):  
Zoya Zaheer ◽  
Rafiuddin Rafiuddin
Keyword(s):  
Silver Nanoparticles ◽  
Optical Properties ◽  
Ag Nanoparticles ◽  
Cetyltrimethylammonium Bromide ◽  
Silver Ions ◽  
Average Diameter ◽  
Capping Agent ◽  
Transmission Electron ◽  
Uv Visible

Silver nanoparticles were synthesized using Tulsi leaves extract as reducing as well as a capping agent to reduce the steps and parameters involved in the synthesis. The morphology, stability and optical properties of Ag-nanoparticles depend on reactants and stabilizer, cetyltrimethylammonium bromide (CTAB) concentrations. The silver nanoparticles were characterized by UV-visible spectrophotometer, and transmission electron microscope (TEM). Spherical morphology of the silver nanoparticles with an average diameter of  25 nm. Morphology changed markedly from spherical aggregated to highly polydispersed in presence of CTAB.

scholarly journals Golden Age of Fluorenylidene Phosphaalkenes–Synthesis, Structures, and Optical Properties of Heteroaromatic Derivatives and Their Gold Complexes

2020 ◽  
Vol 85 (22) ◽  
pp. 14619-14626
Author(s):  
Joshua P. Green ◽  
Daniel Morales Salazar ◽  
Arvind Kumar Gupta ◽  
Andreas Orthaber
Keyword(s):  
Optical Properties ◽  
Golden Age ◽  
Gold Complexes

scholarly journals Optical properties of antimony-borate glass rods co-doped with Eu3+/Ag+ ions

2021 ◽  
Vol 13 (4) ◽  
pp. 94
Author(s):  
Karol Czajkowski
Keyword(s):  
Silver Nanoparticles ◽  
Optical Properties ◽  
Surface Plasmon ◽  
Borate Glass ◽  
Silver Ions ◽  
Silver Particles ◽  
Santa Cruz ◽  
Glass Rods ◽  
Glass Matrices ◽  
Co Doped

This paper presents the results of research on the luminescent properties of antimony-borate glass rods doped with europium and silver ions. The reduction of silver ions to the form of nanoparticles was carried out and the occurrence of localized plasmon resonance was demonstrated, which caused changes in the Eu3+ luminescence signal at a wavelength of 613 nm. The effect of the concentration of silver ions dopant at a constant content of europium ions on the luminescence and absorption characteristics of the produced samples was investigated. In the examined doping range, no large dependencies of spectral changes as a function of the concentration of silver ions were found. A clear quenching of the luminescence was observed due to the heating time of the doped glass matrices for the energy transition (5D0 → 7F2). Full Text: PDF ReferencesS. Kuzman, J. Perisa, V. Dordevic, I. Zekovic, I. Vukoje, Z. Antic and M. D. Dramicanin, "Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles", Materials 13, 3071 (2020). CrossRef V.P. Prakashan, M.S. Sajna, G. Gejo, M.S. Sanu, A.C. Saritha, P.R. Biju, J. Cyriac and N.V. Unnikrishan, "Surface Plasmon Assisted Luminescence Enhancement of Ag NP/NWs-Doped SiO2-TiO2-ZrO2:Eu3+ Ternary System", Plasmonics 14, 673 (2019). CrossRef O. Malta, P. Santa-Cruz, G. Sa and F. Auzel, "Fluorescence enhancement induced by the presence of small silver particles in Eu3+ doped materials", J. Lumin., 33, 261 (1985). CrossRef O. Malta, P. Santa-Cruz, G. Sa and F. Auzel, "Time evolution of the decay of the 5Do level of Eu3+ in glass materials doped with small silver particles", Chem. Phys. Lett, 116, 396 (1985). CrossRef J. Zmojda, M. Kochanowicz, P. Miluski et al., "The influence of Ag content and annealing time on structural and optical properties of SGS antimony-germanate glass doped with Er3+ ions", Journal of Molecular Structure 1160, 428 (2018). CrossRef Ki Young Kim, Plasmonics: Principles and Applications (Croatia, InTechOpen 2012) CrossRef M.R. Dousti, M.R. Sahar, S.K. Ghoshal et al., "Up-conversion enhancement in Er3 +-Ag co-doped zinc tellurite glass: Effect of heat treatment", Journal of Non-Crystalline Solids 358, 2939 (2012). CrossRef I. Soltani, S. Hraiech, K. Horchani-Naifer et al., "Effect of silver nanoparticles on spectroscopic properties of Er3+ doped phosphate glass", Optical Materials 46, 454 (2015). CrossRef R. Schneider, E.A. de Campos, J.B.S. Mendes, J.F. Felix, P.A. Santa-Cruz, "Lead–germanate glasses: an easy growth process for silver nanoparticles and their promising applications in photonics and catalysis", RSC Advances 7 (66), 41479 (2017). CrossRef

Optical properties and Raman spectra of the quasi-one-dimensional gold complexes AuX2dibenzylsulfide (X2=Cl2,ClBr,Br2)

1988 ◽  
Vol 38 (12) ◽  
pp. 8327-8335 ◽  
Author(s):  
H. Tanino ◽  
K. Takahashi ◽  
M. Tajima ◽  
M. Kato ◽  
T. Yao
Keyword(s):  
Optical Properties ◽  
Raman Spectra ◽  
Gold Complexes ◽  
One Dimensional

Effect of implantation regimes of silver ions on the structure and optical properties of zinc-oxide nanocrystalline films

2016 ◽  
Vol 61 (8) ◽  
pp. 1237-1243 ◽  
Author(s):  
N. M. Lyadov ◽  
A. I. Gumarov ◽  
V. F. Valeev ◽  
V. I. Nuzhdin ◽  
V. A. Shustov ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Optical Properties ◽  
Silver Ions ◽  
Nanocrystalline Films

Design of objective lens for 200-kV high-resolution electron microscopes

1983 ◽  
Vol 41 ◽  
pp. 314-315
Author(s):  
K. Tsuno ◽  
T. Honda ◽  
Y. Harada ◽  
M. Naruse
Keyword(s):  
Optical Properties ◽  
Computer Technology ◽  
Axial Magnetic Field ◽  
Chromatic Aberration ◽  
Objective Lens ◽  
Resolution Electron ◽  
Correction Of Astigmatism ◽  
Three Stages ◽  
Electron Microscopes ◽  
Stage 1

Developement of computer technology provides much improvements on electron microscopy, such as simulation of images, reconstruction of images and automatic controll of microscopes (auto-focussing and auto-correction of astigmatism) and design of electron microscope lenses by using a finite element method (FEM). In this investigation, procedures for simulating the optical properties of objective lenses of HREM and the characteristics of the new lens for HREM at 200 kV are described.The process for designing the objective lens is divided into three stages. Stage 1 is the process for estimating the optical properties of the lens. Firstly, calculation by FEM is made for simulating the axial magnetic field distributions Bzc of the lens. Secondly, electron ray trajectory is numerically calculated by using Bzc. And lastly, using Bzc and ray trajectory, spherical and chromatic aberration coefficients Cs and Cc are numerically calculated. Above calculations are repeated by changing the shape of lens until! to find an optimum aberration coefficients.

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