Yin, Ling = 銅基化合物薄膜太陽能電池 : 新透明導電電極與缺陷物理 / 尹苓. / Thesis Ph.D. Chinese University of Hong Kong 2015. / Includes bibliographical references. / Abstracts also in Chinese. / Title from PDF title page (viewed on 26, October, 2016). / Yin, Ling = Tong ji hua he wu bo mo tai yang neng dian chi : xin tou ming dao dian dian ji yu que xian wu li / Yin Ling.

Thesis (Ph. D.)--University of Hong Kong, 2006. / Title proper from title frame. Also available in printed format.

Thesis (Ph. D.)--University of Hong Kong, 2001. / Includes bibliographical references (leaves 263-285).

published_or_final_version / Chemistry / Master / Master of Philosophy

published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy

This thesis discusses the investigation of the two-dimensional S = œ Heisenberg antiferromagnet copper formate tetrahydrate (CFTH) and the layered triangular lattice material NaTi0₂ which was thought to be a candidate for the possession of a non-classical antiferromagnetic ground state due to the frustration inherent in a triangular antiferromagnet. Single crystals of CFTH are investigated using elastic, quasielastic and inelastic neutron scattering, electron spin resonance (ESR) spectroscopy and DC magnetometry. Using the appropriate theory, these measurements are used to determine values for the terms in the Hamiltonian which describes the interactions between the Cu²⁺ ions in this material. The Hamiltonian is compared with that of La₂Cu0₄, and the two are determined to be quite similar. There does not appear to be any evidence for a non-classical ground state in either material. This was proposed to exist in La₂Cu0₄ to account for the superconductivity of doped samples. The difficulties in preparing pure NaTi0₂ have been surmounted, and a technique is described for preparing powder samples with very reproducible structural and magnetic properties. The structural properties have been investigated using X-ray and neutron diffraction, the latter at temperatures between 100 K and room temperature. The magnetic properties have been probed using DC magnetometry and ESR spectroscopy. The sample dependence of the structural and magnetic properties of samples prepared in slightly different ways is discussed. The temperature dependence of the magnetic susceptibility and of the structural parameters is explained by comparison with other oxides and chlorides of trivalent Ti and V, many of which show similar behaviour. The magnetic and structural changes which occur between 200 and 250 K are assigned to changes in the Ti-Ti bonding within the layers, which leads to a transition between two metallic states with subtle differences in their band structures.

[Formulae and special characters can only be approximated here. Please see the pdf version of the abstract for an accurate reproduction.] Group 15 Lewis base adducts of Group 11 coinage metal salts of the form MX : L (1:n), where M=Cu(I),Ag(I),Au(I); X=(pseudo-)halide (Cl,Br,I,SCN,CN) and oxyanion; L-uni- or bi-dentate pnicogen ligand and n=1-4, may adopt monomeric, dimeric, oligomeric or polymeric structural forms. For the purpose of this study, the pnicogen bases are divided into two groups: the 'harder' nitrogen base ligands and 'softer' phosphine/arsine/stibine ligands. A sizeable body of structural data exits for adducts of silver(I) salts. Those with uni-dentate nitrogen base ligands are usually restricted to readily accessible liquid bases such as pyridine and its derivatives. The extension of such series to encompass ligands with more varied base characteristics may assist in the access of new bonding modes and stereochemistry, leading to control of these and of stoichiometry. Herein a number of complexes of copper(I) salts with uni-dentate nitrogen and bi-dentate phosphine/arsine/stibine adducts with differing degrees of complexity have been characterized, extending the known range of structural forms. Systematic variations in stoichiometry, halide, ligand and solvent of crystallization have provided a range of complexes whose structures have been determined by single crystal X-ray diffraction techniques. The structural relationship between these and other known adducts, often including their silver analogues, are considered, permitting comparisons of various common features and differences. The first section of this thesis (Chapter 3 and Chapter 4) reports a number of complexes of the form CuX : L (1:n) (CuX)Ln, L=uni-dentate nitrogen base ligand with n=1-3, the second section (Chapter 5 through Chapter 10) reports adducts with bi-dentate bis(diphenylpnicogeno)alkane ligands, Ph2E(CH2)xEPh2 (whereE=P,AS,Sb and x=1-6). The structural types and copper(I) coordination environments are influenced by CuX (salt) : ligand stoichiometry, the stereochemistry and basicity of the ligand, the type and size of the counter-ion (where applicable) and crystallization solvent. The structural types found for copper(I) (pseudo-)halide and oxyanion species are similar to those found for their silver(I) analogues, although the transitions between structural types may occur with different pnicogen and halide atoms, consequent on the smaller size of the copper(I) ion and differences in stereochemical preferences.

Thesis (Ph. D.)--Northeastern University, 2008. / Title from title page (viewed April 3, 2009). Graduate School of Arts and Sciences, Dept. of Physics. Includes bibliographical references (p. 129-136).

Thesis (M.S.)--Oregon State University, 2009. / Printout. Includes bibliographical references (leaves 86-95). Also available on the World Wide Web.

Thesis (Ph.D.)--Michigan State University. Environmental Engineering, 2008. / Title from PDF t.p. (viewed on July 16, 2009) Includes bibliographical references. Also issued in print.