Wavelength-modulated derivative spectra of the reflectivity of Beta prime-CuxZn1-x are determined between 1.5 and 5.1 eV for compositions near the Beta prime in equilibrium with alpha + Beta prime phase transition. The alloys are annealed and quenched in the Beta prime phase on both sides of ...
Optical absorption spectra of these samples were recorded in the wavelength range of 400–1100 nm (Support- ing Information Fig. S13a,b). The band gap of the films can be calculated using the formula (αhν)n = A(hν – Eg): Eg is the optical band gap, hν is the ...
The residue was redissolved with mobile phase (H2O: acetonitrile = 20:80, v/v) and detected by HPLC at the wavelength of 423 nm after centrifugation. 2.12. Pharmacokinetics analysis Pharmacokinetics for different formulations was evaluated by determining serum concentration of Cu2+, DSF and DSF/...
For metallographic investigations an optical microscope (reflected light microscope Zeiss Axiotech 100) as well as WDX (wavelength dispersive spectroscopy; EPMA CAMECA SX 100) and EDX techniques (energy dispersive spectroscopy; ESEM Zeiss Supra 55 VP) were used. For scanning electron microscopy the exc...
Copper (Cu)-based catalysts generally exhibit high C2+ selectivity during the electrochemical CO2 reduction reaction (CO2RR). However, the origin of this selectivity and the influence of catalyst precursors on it are not fully understood. We combine oper
The K alpha(1,2) and K beta(1,3) emission spectra of the 3d transition metals Cr, Mn, Fe, Co, Ni, and Cu were measured, employing a single-crystal diffract... Holzer,Fritsch,Deutsch 被引量: 131发表: 1997年 Wavelength, energy shape, and structure of the CuKα1 x-ray emission li...
Indo-1 is a dual-wavelength fluorophore widely used for calcium-ion sensing at ambient pressure. Because understanding the physico-chemical nature of high-... J Ryan,P Urayama - 《Analytical Methods》 被引量: 5发表: 2012年 Synthesis and piezochromic luminescence of aggregation-enhanced emission 9...
Optical properties of Cu2−xS films 0.4 μm thick were determined in the wavelength range 0.5–1.6 μm after a series of oxidation-reduction heat treatments. The films were prepared by the complete conversion of thin CdS layers by the solid state ion exchange method. With increasing off-stoi...
The at σ oinf ttehrefafcilembsetdweepeonsiMtedoSo2nangdlasrsGsOubcsatnrabtee versus incident wavelength (λ) calculated from UV-vis. spectra (Supplied material 1) were remarkably enhanced with the Cu doping and rGO at heterojunction interface. incorporation (Fig. 4a). This implied a high ...
wavelength of the incident light andα(λ)is the absorption coefficient. The extinction coefficient k denotes the amount of incident light dissipated per unit length of material due to scattering and absorption processes. The refractive index n is computed as a function of λ, R and k using ...