Abstract
In this work, plasma parameters such as, the electron temperature )Te(, electron density ne, plasma frequency )fp(, Debye length )λD(and Debye number )ND), have been studied using optical emission spectroscopy technique. The spectrum of plasma with different values of energy, Pb doped CuO at different percentage (X=0.6, 0.7, 0.8) were recorded. The spectroscopic study for these mixing under vacuum with pressure down to P=2.5×10-2 mbar. The results of electron temperature for X=0.6 range (1.072-1.166) eV, for X=0.7 the Te range (1.024-0.855) eV and X=0.8 the Te is (1.033-0.921) eV. Optical properties of CuO:Pb thin films were determined through the optical transmission method using ultraviolet visible spectrophotometer within the range (190 – 1100) nm.
Highlights
The Laser induced breakdown spectroscopy (LIBS) is useful technique for elemental analysis of the materials in the form of solids, liquids and gases, it has a variety of applications like materials analysis, environmental monitoring [1], The ablation process using long pulse duration lasers (> 1 ns) is divided into three stages
The laser light interacts with the solid resulting in rapid ionization of the target surface into plasma on a time scale short compared with the pulse duration
The optical emission spectra of Cupper mono oxide (CuO):Pb component at X=0.6, 0.7 and 0.8 percentage target plasma which confined in vacuum was recorded using Optical Emission Spectroscopy (OES) technique
Summary
The Laser induced breakdown spectroscopy (LIBS) is useful technique for elemental analysis of the materials in the form of solids, liquids and gases, it has a variety of applications like materials analysis, environmental monitoring [1], The ablation process using long pulse duration lasers (> 1 ns) is divided into three stages. After the end of the laser pulse, the resultant plasma plume expands quasi-adiabatically in a medium, which can include vacuum or a background gas, with or without applied fields [2], Sample types can be wide ranging because optical absorption processes initiate LIBS sampling, allowing analysis of solids, liquids, and gases [3], once the energy from the laser pulse heats, ablates, atomizes, and ionizes the sample material, a plasma is formed. The plasma plume is spectrally resolved and detected by a spectrograph and a detector Both quantitative and qualitative information, such as elemental composition, can be deduced from the resulting plasma spectrum. Plasma temperature is an important thermodynamic property due to its ability to describe and predict other plasma characteristics such as the relative populations of energy levels and the speed distribution of particles
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