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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 1055-1058 |
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Naranji E, Panahi S, aliannezhadi M. Effect of excimer laser pulse number On gold-silver thin film. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :1055-1058
URL: http://opsi.ir/article-1-2683-en.html
URL: http://opsi.ir/article-1-2683-en.html
1- Semnan University
2- Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute
3- Ministry of Science
2- Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute
3- Ministry of Science
Abstract: (1204 Views)
Abstract- In this paper, ArF excimer laser irradiation with a wavelength of 193 nm was used to treat the gold-silver binary thin film samples for the purpose of producing a suitable substrate for surface-enhanced Raman spectroscopy. Experiments were performed with 1, 5 and 10 laser pulses at an energy fluence of 75 mJ/cm2. The results show that the LSPR peaks of the nanostructures produced by 5 laser pulses is sharper and more intense than other samples and the intensity of the rhodamine 6G Raman spectrum with a concentration of 10-5 M in the presence of this substrate increased significantly. Therefore, the sample produced with 5 pulses of the laser is suitable for SERS-based applications.
Keywords: Gold-Silver thin film, laser excimer, Localized surface plasmon resonances (LSPR), Surface Enhanced Raman Spectroscopy
Type of Study: Experimental |
Subject:
Special
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