Organische Halbleiter. Teil II: Elektrische Eigenschaften sowie Zusammenhänge zwischen chemischer Struktur und elektrischer Leitfähigkeit organischer Verbindungen

pPolyphenylenes and o,m,p-polyphenylenes are pyrolyzed at various temperatures up to 1500°C in a nitrogen atmosphere. The weight loss during the pyrolysis and the residues of pyrolysis are studied by gravimetric measurements, elemental analysis, X-ray analysis and electrical conductivity. The results of the measurements are interpreted by correlating the mechanism of pyrolysis with the structure and the numerical values of the electrical conductivity of the corresponding residues of pyrolysis. The maximum temperature of pyrolysis has a very important meaning for the electrical conductivity of the residues of pyrolysis, whereas the polymerization conditions of the various polyphenylenes play only a secondary role. Three ranges of the temperature are distinguished (up to 600 T, 600 -800 "C, above 800 "C), in which the corresponding residues of the pyrolysis are novel semiconductor materials with different structures and properties. Also the significance of chlorine as dehydrogenation agent is explained; chlorine contributes to the connection of neighbouring macromolecules; thus the presence of small amounts of CI in polyphenylenes in the first temperature range of the pyrolysis seems to be suitable.

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Polymere organische Halbleiter

Naarmann

1969

Naturwissenschaften

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Organische Halbleiter. Teil II: Elektrische Eigenschaften sowie Zusammenhänge zwischen chemischer Struktur und elektrischer Leitfähigkeit organischer Verbindungen

Abstract: die wichtigsten bisher bekannten organischen halbleitenden Verbindungen und ihre elektrischen Eigenschaften wird ein Uberblick gegeben, und die Zusarnrnenhange zwischen chernischer Struktur und elektrischer Leitfdhigkeit werden diskutiert.

Cited by 3 publications

References 101 publications

Graphite, Carbonaceous Materials and Organic Solids as Active Electrodes in Metal‐Free Batteries

Graphite, Carbonaceous Materials and Organic Solids as Active Electrodes in Metal‐Free Batteries

Halbleiter‐Materialien aus der Pyrolyse von Polyphenylenen

Polymere organische Halbleiter

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