Date of Award
8-2012
Degree Name
Master of Science in Engineering
Department
Electrical and Computer Engineering
First Advisor
Dr. Massood Z. Atashbar
Second Advisor
Dr. Bradley Bazuin
Third Advisor
Dr. Margaret Joyce
Keywords
SERS, heavy metal, printed, nanoparticles, substrate
Access Setting
Masters Thesis-Open Access
Abstract
A novel surface enhanced Raman spectroscopy (SERS) substrate was successfully fabricated on a silicon wafer using inkjet printing and on polyethylene terephthalate (PET) using gravure printing. Silver (Ag) nanoparticle (NP) based ink, was used for roughening of the surface of silicon and PET. A thickness of 400 nm was measured for the printed Ag NP printed film on silicon and the thickness of the single and double layered films on PET were measured as 340 nm and 680 nm, respectively by using vertical scanning interferometry. The Ag NP printed SERS substrate was tested for application with heavy metal compounds like cadmium sulfide (CdS), zinc oxide (ZnO) and mercury sulfide (HgS). An amplification of the SERS intensity by up to 5 orders of magnitude was observed for all test samples, due to the presence of hotspots between the metal nanoparticle aggregates. The responses demonstrated the feasibility of the novel SERS substrate to be used in applications for detection of heavy metal compounds.
Recommended Citation
Eshkeiti, Ali, "Fabrication of Printed Substrate for Surface Enhanced Raman Spectroscopy" (2012). Masters Theses. 25.
https://scholarworks.wmich.edu/masters_theses/25