Effect of Ar microplasma irradiation on surface, structural and field emission properties of brass

IF 1.5 4区物理与天体物理 Q3 OPTICS

The European Physical Journal D Pub Date : 2025-03-25 DOI:10.1140/epjd/s10053-025-00973-4

Asad Ali, Mahreen Akram, Shazia Bashir, Khaliq Mahmood, Shahzad Naseem, Saqib Jamil, Aiman Saif Ullah, Abdul Wahid, Rana Muhammad Ayub, Shoaib Akmal

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Abstract

Ar microplasma irradiation is used to induce morphological, structural, electrical and field emission modifications of brass for different treatment times. The ablation depth evaluated by optical microscopy analysis gradually increases and then decreases with the increase of treatment time. Scanning Electron Microscope (SEM) analysis reveals the generation of microscale holes, blisters and fibrous structures which are explained on the basis of collisional/thermal sputtering, diffusion and bursting of gaseous bubbles. X-Ray Diffraction (XRD) analysis reveals absence of new compositional phase however, variation in peak intensities, crystallite size, dislocation line density, and stress/ strain is observed. The potential of microplasma treated brass to be used as field emission cathode is evident from significantly improved field emission parameters. The correlation of field emission parameters with the structural density, work function and electrical conductivity measurements suggests geometrical field enhancement, increased number of emission sites and enhanced charge transport properties offered by the grown structures.

Graphical abstract

The graphical abstract showing (a) schematic view of microplasma set up (b) Optical micrograph of treated Brass surface for the exposure time of 10 minutes showing fibrous morphology (c) High resolution SEM image of treated Brass surface for the exposure time of 10 minutes and (d) Correlation of structural density with corresponding maximum current density Jmax

Abstract Image

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来源期刊

The European Physical Journal D 物理-物理：原子、分子和化学物理

CiteScore

3.10

自引率

11.10%

发文量

213

审稿时长

3 months

期刊介绍： The European Physical Journal D (EPJ D) presents new and original research results in: Atomic Physics; Molecular Physics and Chemical Physics; Atomic and Molecular Collisions; Clusters and Nanostructures; Plasma Physics; Laser Cooling and Quantum Gas; Nonlinear Dynamics; Optical Physics; Quantum Optics and Quantum Information; Ultraintense and Ultrashort Laser Fields. The range of topics covered in these areas is extensive, from Molecular Interaction and Reactivity to Spectroscopy and Thermodynamics of Clusters, from Atomic Optics to Bose-Einstein Condensation to Femtochemistry.