First order Raman spectrum of Cu2O

Bałkanski, M.; Nusimovici, M. A.; Reydellet, J.

doi:10.1016/0038-1098(69)90768-6

Cited by 79 publications

(43 citation statements)

References 6 publications

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“…37,38 The peak appearing at 50 cm À1 is a tail of the strong Rayleigh line, while the feature starting at about 550 cm À1 is the onset of the water Raman band, extending up to about 3000 cm À1 . The known prominent CuO Raman peak at 297 cm À1 was not observed, indicating the absence of this kind of oxide.…”

Section: Resultsmentioning

confidence: 99%

Analysis of the structure, configuration, and sizing of Cu and Cu oxide nanoparticles generated by fs laser ablation of solid target in liquids

Santillán

Videla

Raap

et al. 2013

Journal of Applied Physics

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We report on the analysis of structure, configuration, and sizing of Cu and Cu oxide nanoparticles (Nps) produced by femtosecond (fs) laser ablation of solid copper target in liquids. Laser pulse energy ranged between 500 lJ and 50 lJ. Water and acetone were used to produce the colloidal suspensions. The study was performed through optical extinction spectroscopy using Mie theory to fit the full experimental spectra, considering free and bound electrons size dependent contributions to the metal dielectric function. Raman spectroscopy and AFM technique were also used to characterize the sample. Considering the possible oxidation of copper during the fabrication process, two species (Cu and Cu 2 O) arranged in two structures (bare core or core-shell) and in two configuration types (Cu-Cu 2 O or Cu 2 O-Cu) were considered for the fitting depending on the laser pulse energy and the surrounding media. For water at high energy, it can be observed that a CuCu 2 O configuration fits the experimental spectra of the colloidal suspension, while for decreasing energy and below a certain threshold, a Cu 2 O-Cu configuration needs to be included for the optimum fit. Both species coexist for energies below 170 lJ for water. On the other hand, for acetone at high energy, optimum fit of the full spectrum suggests the presence a bimodal Cu-Cu 2 O core-shell Nps distribution while for decreasing energy and below a 70 lJ threshold energy value, Cu 2 O-Cu core-shell Nps must be included, together with the former configuration, for the fit of the full spectrum. We discuss possible reasons for the changes in the structural configuration of the core-shell Nps. V C 2013 American Institute of Physics. [http://dx

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Section: Resultsmentioning

confidence: 99%

Analysis of the structure, configuration, and sizing of Cu and Cu oxide nanoparticles generated by fs laser ablation of solid target in liquids

Santillán

Videla

Raap

et al. 2013

Journal of Applied Physics

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“…[9,[21][22][23]. With increasing of current density, the strongest peak of 218 cm -1 from Cu 2 O became smaller.…”

Section: Raman Characterizationmentioning

confidence: 98%

“…With increasing of current density, the strongest peak of 218 cm -1 from Cu 2 O became smaller. For sample, which have been fabricated after anodic oxidation at 7 mA/cm 2 , peaks 286, 445 and 488 cm -1 , which can be attributed to Cu(OH) 2 , appear [23,24]. In spectra from sample, which have been fabricated by anodic oxidation without solution stirring ( figure 5 b), peaks of Cu(OH) 2 phonon modes appear at current density from 1,5 mA/cm 2 .…”

Section: Raman Characterizationmentioning

confidence: 99%

Synthesis of copper oxides films via anodic oxidation of copper foil followed by thermal reduction

Zimbovskiy

Gavrilov

Чурагулов

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract.Copper oxides films were successfully synthesized via anodic oxidation of copper foil at various conditions followed by thermal reduction of oxidized samples in inert nitrogen atmosphere. The morphology and phase composition of final and intermediate products were determined by scanning electron microscopy, X-ray diffraction and Raman spectroscopy techniques. Optimal synthetic conditions of Cu 2 O films on copper foil surface were established.

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“…The dramatic improvement of the p-type conduction is caused by a remarkable increase of hole concentration in Fig. 3b [18,19]. The result is a manifestation of different symmetrical characterizations between Cu 2 O and the solution, although they have the same crystalline cuprous structure.…”

Section: Resultsmentioning

confidence: 98%

A p‐type (Cu_1−xAg_x)₂O oxide solution film with cuprite structure for enhanced hole concentration

Huang

Wang

2014

Physica Status Solidi (a)

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First order Raman spectrum of Cu2O

Cited by 79 publications

References 6 publications

Analysis of the structure, configuration, and sizing of Cu and Cu oxide nanoparticles generated by fs laser ablation of solid target in liquids

Analysis of the structure, configuration, and sizing of Cu and Cu oxide nanoparticles generated by fs laser ablation of solid target in liquids

Synthesis of copper oxides films via anodic oxidation of copper foil followed by thermal reduction

A p‐type (Cu_1−xAg_x)₂O oxide solution film with cuprite structure for enhanced hole concentration

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First order Raman spectrum of Cu2O

Cited by 79 publications

References 6 publications

Analysis of the structure, configuration, and sizing of Cu and Cu oxide nanoparticles generated by fs laser ablation of solid target in liquids

Analysis of the structure, configuration, and sizing of Cu and Cu oxide nanoparticles generated by fs laser ablation of solid target in liquids

Synthesis of copper oxides films via anodic oxidation of copper foil followed by thermal reduction

A p‐type (Cu1−xAgx)2O oxide solution film with cuprite structure for enhanced hole concentration

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A p‐type (Cu_1−xAg_x)₂O oxide solution film with cuprite structure for enhanced hole concentration