Dissertations, Theses, and Capstone Projects

Date of Degree

6-2023

Document Type

Dissertation

Degree Name

Ph.D.

Program

Chemistry

Advisor

Stephen O'Brien

Committee Members

Lou Massa

Maria Tamargo

Subject Categories

Analytical Chemistry | Inorganic Chemistry | Materials Chemistry | Physical Chemistry

Keywords

Raman Spectroscopy, SERS, Sufentanil, Silver Nano Island Films, Heritage Research, Edo Period

Abstract

In this dissertation are presented three projects that contribute to the body of research on SERS in the forensic, heritage, and semiconductor fields. The first project, Charge-Transfer mapping on GaN/Ag, a silver-decorated nanopillar semiconductor substrate fabricated from the GaN is used with the Raman probe Rhodamine 6 G (R6G) to map the effect of the nanofeatures on the CT resonance. The second project, in collaboration with Marco Leona from the Metropolitan Museum of Art, explores the use of AgNIFs to identify colorants used on textile fiber samples from four 19th century works of Japanese art. The final project analyzes the effect of time and aggregating salt used on AgNP aggregation for the detection of fentanyl and its derivative sufentanil. What links these projects is their focus on furthering the use of SERS for the detection of trace materials.

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