Perturbation effect of solvent on the photo-physical processes of fluorescence solute at low temperature
Dissertant
Thesis advisor
al-Wattar, Abbas Jasim Hammadi
al-Maliki, Firas Jawad K.
Comitee Members
Sadiq, Zaynab S.
Hadi, Mahasin Fadil
Hamid, Muhammad A.
University
University of Baghdad
Faculty
College of Science
Department
Department of Physics
University Country
Iraq
Degree
Master
Degree Date
2014
English Abstract
In the present work, the low temperature spectroscopy of Anthracene and Benzoanthracene molecules in different solvents has been studied at a fixed molar concentration.
The temperature range has been taken from room temperature down to liquid nitrogen temperature (77K).
Polar and nonpolar solvents; Ethanol, Isopropanol, Hexane, Heptane and Nonane, have been used in order to study the environment effect on the absorption and fluorescence spectra of these molecules.
On the other hand, some of the spectroscopic parameters have been determined as functions of solvent polarity and temperature.
Thus, the fluorescence lifetime has been measured using the Photon Technology International (PTI) instrument.
The results indicate that the band width at full half maximum (FWHM) increases, while the peak emission cross section (σp) decreases, with increasing of solvent polarity and temperature.
The Shpol'skii spectra of these molecules show clearly enhancement, in which sharp and highly- resolved fine structure spectra have been observed at 77K.
Main Subjects
No. of Pages
88
Table of Contents
Table of contents.
Abstract.
Chapter One : Introduction and basic concepts.
Chapter Two : Experimental part.
Chapter Three : Results and discussion.
References.
American Psychological Association (APA)
al-Rawi, Asma Naji Ahmad. (2014). Perturbation effect of solvent on the photo-physical processes of fluorescence solute at low temperature. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-607235
Modern Language Association (MLA)
al-Rawi, Asma Naji Ahmad. Perturbation effect of solvent on the photo-physical processes of fluorescence solute at low temperature. (Master's theses Theses and Dissertations Master). University of Baghdad. (2014).
https://search.emarefa.net/detail/BIM-607235
American Medical Association (AMA)
al-Rawi, Asma Naji Ahmad. (2014). Perturbation effect of solvent on the photo-physical processes of fluorescence solute at low temperature. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-607235
Language
English
Data Type
Arab Theses
Record ID
BIM-607235
