Haitao Zheng , Mingshuai Shen , Zunyan Xie , Ziyi Li , Mengran Zhang , Haoliang Sun
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引用次数: 0
Abstract
Ag-Nb alloy films with varying Nb content were deposited on flexible polyimide substrates by the magnetron sputtering metho. The results show that dense and monodisperse Ag nano-islands were self-grown on the surfaces of as-deposited Ag-31.1 at% Nb alloy films. FDTD simulations revealed that the local electric field strength is closely related to the covering Ag layer, size and spacing of self-grown nano-islands. A 166-nm Ag-31.1 % Nb alloy film covered with 15-nm Ag layer served as the SERS substrate presented excellent and stable SERS performance and can detect 5 × 10−14 mol/L R6G solution. The preparation method of Ag nano-island/alloy films offers a novel approach for producing reproducible and highly sensitive SERS substrates.
期刊介绍：
Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences.
A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below.
The scope of the journal includes:
1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes).
2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis.
3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification.
4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.
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