Charge transport characterization of novel electronic materials. (Volumes I-III)

The work presented includes analysis of electronic transport data and related measurements for the following types of materials: molecular metals and conducting polymers based upon phthalocyanine (Pc) building blocks, new composites of conducting polymers with inorganic polymeric and layered materials, and both bulk and thin film samples of the high-T;The phthalocyanine-based molecular metals and conducting polymers exhibit some of the highest reported conductivities for environmentally stable organic conductors, and possess a unique structure which is inherently resistant to large structural transformations upon donor/acceptor doping. These properties are demonstrated primarily by results for Ni(Pc)(ClO;Significant success has been achieved in the fabrication of superconducting films of Y-Ba-Cu-O, Bi-Sr(Pb)-Ca-Cu-O, and Tl-Ba-Ca-Cu-O by organometallic chemical vapor deposition. Results are also presented for films prepared by excimer laser ablation. Correlation of the processing parameters with the observed normal state and superconducting properties of films produced by both methods, has pointed the way to improvements in the deposition methodology and led to the reproducible fabrication of high quality films.