Exciton Dynamics of Perylene Diimide Derivatives Studied by Photoluminescence Anisotropy and Vibrational Spectroscopy
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Physics and Astronomy
Date of Award
Spring 2025
Abstract
Perylene diimides (PDIs) have received significant attention for organic optoelectronic devices and solar energy applications because of their high optical absorption, effective energy transfer capabilities, and adaptable chemical properties. The exploration of exciton dynamics in PDI derivatives has been studied by spectroscopic fluorescence polarization (P) measurements. In this investigation, photoluminescence anisotropy is used to explore exciton migration in ensembles of perylene diimide (PDI). Besides, the vibronic effect of sidechain substituents of PDIs is studied by vibrational spectra obtained by using Raman and Fourier transform Infrared (FTIR) Spectroscopy which often provides valuable insights into their molecular vibrational modes, structural characteristics, and intermolecular interactions. Understanding the fundamental exciton dynamics and the influence of structural modifications on their optical properties is crucial for enhancing their performance in organic semiconductor devices.
Advisor
Heungman Park
Subject Categories
Physical Sciences and Mathematics | Physics
Recommended Citation
Islam, Sahjahan, "Exciton Dynamics of Perylene Diimide Derivatives Studied by Photoluminescence Anisotropy and Vibrational Spectroscopy" (2025). Electronic Theses & Dissertations. 1264.
https://digitalcommons.tamuc.edu/etd/1264
