Investigation of Photostability and Molecular Properties in Perylene Diimide (PDI) Derivative Films by Relative Quantum Yield and FTIR Measurements
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Physics and Astronomy
Date of Award
Spring 2025
Abstract
Perylene diimide (PDI) has been extensively studied due to its high fluorescence quantum yield, optoelectronic properties, and flat-conjugated structure, which enable efficient charge transport and light absorption. This study investigates the photostability and quantum yield behavior of PDI-C3, PDI-C5, PDI-C8, and PDI-C13 thin films through intense laser beam illuminations. Using a 447 nm laser, emission spectra were recorded to analyze the luminescence stability under prolonged exposure. Attenuated Total Reflectance-Fourier Transform Infrared (ATR- FTIR) spectroscopy was conducted pre- and post-experiment to assess structural modifications due to laser exposure. This study provides insights into the role of molecular packing in PDI photostability, offering potential advancements in organic electronic applications.
Advisor
Heungman Park
Subject Categories
Physical Sciences and Mathematics | Physics
Recommended Citation
Das Ria, Dipika, "Investigation of Photostability and Molecular Properties in Perylene Diimide (PDI) Derivative Films by Relative Quantum Yield and FTIR Measurements" (2025). Electronic Theses & Dissertations. 1268.
https://digitalcommons.tamuc.edu/etd/1268
