Identification of Cu(I) and Cu(II) oxides by electron spectroscopic methods: AES, ELS and UPS investigations

Comparison of the absolute frequencies of He—Ne/CH4lasers with a transportable M101 laser

“…There is fairly good agreement between our calculated DOS and that due to Marksteiner et al [2] and Ghijsen et al [7]. Photoelectron spectra of Cu 2 O have been reported using UV [37], x-ray [38] and synchroton radiation [39]. The latter spectrum shows peaks at about 1.6, 0.44-0.51 and 0.24 Ryd below E F , the Fermi energy.…”

Color of Copper/Copper Oxide

“…The underlying mechanism for the emergence of various colors can be explained in terms of the multiple reflections that occur at the oxidized film surface and interface between Cu 2 O and Cu, [21,22] as shown schematically in Figure 3a. The reflected light depends strongly on the Cu 2 O thickness.…”

“…First, the dielectric functions of our Cu 2 O layer are consistently obtained by spectroscopic ellipsometry measurements (Figures S7 and S8, Supporting Information). [21][22][23][24][25] Based on the obtained dielectric functions of each layer, distinct reflectance spectra in the near-normal incident geometry are simulated for specific CuO/Cu 2 O thicknesses, using the Fresnel equations. Figure 3b shows the simulated reflectance spectra (dotted lines.…”

Characterization of the catalytic films formed on stainless steel anodes employed for the electrochemical treatment of cuprocyanide wastewaters

“…spectra b and a in Fig. 2) [30][31][32][33][34]. In order to test the possible occurrence of hydroxide formation in addition to copper(II) oxide formation in the electrocatalytic films formed on steel, a high-purity electrolytic copper plate was electro-oxidized up to 0.65 V in an aqueous solution containing 0.1 M Na 2 CO 3 , according to the procedure described in references [34,35].…”