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#O XPS PEAK IN CUO SOFTWARE#
For CuO, we compare the obtained primary excitation spectra with first principle calculations performed with the CTM4XAS software (Charge Transfer Multiplet program for X-ray Absorption Spectroscopy) for the corresponding emissions and we find good quantitative agreement. These calculations were performed for Cu 2p peaks of Cu, Cu 2O, and CuO. The shape of this primary excitation spectrum is determined by requiring close agreement between the resulting theoretical spectrum and the experimental XPS spectrum. lifetime broadening, spin–orbit coupling, and multiplet splitting.
#O XPS PEAK IN CUO FULL#
The full XPS spectrum is then modeled by convoluting this energy loss cross section with the primary excitation spectrum that accounts for all effects which are part of the initial photo-excitation process, i.e. The peak A and B are related to Cu 2 O or Cu and CuO respectively. The broad Cu 2p 3/2 peak has been deconvoluted into two peaks which are marked as peaks A and B in Fig. We have calculated the effective energy-differential inelastic electron scattering cross section for XPS, including both surface and core hole effects, within the dielectric response theory by means of the QUEELS-XPS software (QUantitative analysis of Electron Energy Losses at Surfaces for XPS). Copper oxide can exist in two semiconducting phases, namely, cupric oxide (CuO) and cuprous oxide (Cu 2 O). These effects must be included in the theoretical description of the emitted photoelectron spectra. Mater.The shape and intensity of photoelectron peaks are strongly affected by extrinsic excitations due to electron transport out of the surface (including bulk and surface effects) and to intrinsic excitations due to the sudden creation of the static core hole. Ahmad, Ayesh, Thin Solid Films 636, 207–213 (2017) Considering that XPS is a surface sensitive characterization method, we further verify the structure of CuOCoS x and CuOCoOOH by Ar + etching XPS analysis (Figure S7, Supporting Information), where one can see that the elements of Co and S are mainly distributed on the surface of the sample while the Cu mostly concentrating in the interior of. Scoles, Atomic and Molecular Beam Methods (Oxford university press, Oxford, 1988) The fill factor is 60% and an encouraging efficiency ( η) of 5.6% is retrieved, indicating its promising application in solar cell devices.
#O XPS PEAK IN CUO DOWNLOAD#
An open circuit voltage ( V OC) of 586 mV and short circuit current ( J SC) of 16.0 mA/cm 2 are obtained from current density–voltage (J–V) characteristics. Download scientific diagram XPS spectra of (a) the Cu 2 O-CuO-Cu-C nanocomposite, (b) the C1s scan, (c) the Cu2p scan, (d) the N1s scan, (e) the O1s scan. calabura derived CuO nanoparticles and the corresponding Tauc plot for ( b ) direct and ( c ) indirect band gap. CuO was produced by first making a Cu 2 O film more than 15 nm thick using the procedure described above.
#O XPS PEAK IN CUO FREE#
The experimentally obtained photovoltaic parameters of the p-CuO/n-Si heterojunction solar cell are compared with that of the simulation results using SCAPS 1D analysis. calabura derived CuO nanoparticles, (b) high-resolution Cu 2 p peaks, and (c) high-resolution O 1 s peaks. The XPS peak-shape analysis showed that the sample was fully oxidized to a depth of at least 15 nm and the Cu 2p, O 1s, Cu LVV and O KLL spectra showed no traces of free Cu or CuO. The optical band gap (1.36 eV) shows close proximity with the band gap obtained from simulated quantum efficiency spectra (1.47 eV).
The nucleation of CuO clusters takes place in the form of isolated islands observed in both scanning electron microscopy (SEM) and atomic force microscopy (AFM). The surface stoichiometry shows a pronounced Cu2p peak with a satellite peak (dominated by CuO) at spin-orbit splitting region (Cu 2p 3/2 and Cu 2p 1/2) in X-ray photoelectron spectroscopy (XPS).
When the cup is assembled according to the. The sample cup consists of two plastic cylinders and a top cover, held together with a three-way connection part. The polycrystalline CuO phase is confirmed by X-ray diffraction (XRD) patterns. AddspeX offers sample cups that are developed in cooperation with specialists from the industry and made by a top Dutch producer of spray-casting applications. a database of standard spectra can be managed in CasaXPS via the SIMS Toolbar. The cluster size distribution is controlled by a quadrupole mass filter. Peak Model for Polymers containing Carbon Bonded to Oxygen and Hydrogen. This work focuses on the synthesis and characterization of a thin film p-CuO/n-Si solar cell deposited by a size-selected cluster source with dc magnetron sputtering technique. In recent years, metal oxide-semiconductor heterojunctions are gaining interest in fundamental photovoltaic research.
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