Thesis (M.S.)--Ohio University, June, 1990. / Title from PDF t.p.

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Digitized by Kansas Correctional Industries

This thesis examined two distinct characteristics of lanthanide and transition metal complexes: Magnetism and Luminescence. In chapter two, synthesis, characterization, magnetic and luminescence investigations of mononuclear lanthanide complexes using Schiff-base tetrazine based ligand were performed. Six novel lanthanide complexes, [LaIIICl3(Htzpy)2], [TbIIICl2(Htzpy)2(MeOH)]Cl, [HoIIICl2(Htzpy)2(MeOH)]Cl, [DyIIICl2(Htzpy)2(MeOH)]Cl, [ErIIICl2(Htzpy)2(MeOH)]Cl and [YbIIICl2(Htzpy)2]Cl have been synthesized successfully and the studies were performed with the application of single crystal X-ray diffractometry, SQUID magnetometry, UV-Vis-NIR spectrometry and custom-built hyperspectral microscope (for luminescence spectroscopy). Chapter three is mainly about the luminescence properties of CoII and CuII complexes using a naphthalimide based ligand. Two complexes, [CoIICl2(Pynap)2] and [CuIIBr2(Pynap)2] were synthesized successfully and characterized using single crystal X-ray diffractometry, UV-Vis spectrometry and hyperspectral microscope (for luminescence spectroscopy). In order to have information about the electrochemical properties of CoII and CuII complexes, their redox activity was monitored by cyclic voltammetry (CV) and compared with the parent ligand. In addition, a rational design to synthesize a new ligand (dipicnap) which consists of both naphthalimide and dipicolinic acid moieties is presented.

Graduation date: 1997

Unintentionally doped InN thin films have been epitaxially grown on Al2O3 (001) and Si (111) by plasma-assisted molecular beam epitaxy (PAMBE).In this thesis, all the samples are two luminenscent peaks. In analyzing the PL spectra, we look into the variations in peak position, intensities by changing the temperature and the laser power, and PbS detector was used. The temperature dependent PL peak position versus temperature is fitted with Varshni equation. Excitation laser power dependent PL is found to follow a linear relation. The two luminescent peaks of InN are discussed by optical measurement.

Thesis--M. Phil., University of Hong Kong, 1981.

published_or_final_version / Physics / Master / Master of Philosophy

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No description available.