Electrical Conduction Study of Polymers with Indophenine Repeating Units

Abstract It has been established that the dark conduction of isatin-[thiophene]-indophenine and of three polymers in which it is a repeating unit is described by the expression [sgrave] = [sgrave] exp (Eact/kT). The indophenine repeating units in the polymers are connected with a single bond, an oxygen atom, or a methylene group. The electronic spectra in solution and in the solid state indicate that these bonds between the basic units do not interrupt the conjugation along the chain. There is no correlation between the activation energy calculated from optical data and the thermal activation energy of conduction. The latter is considered as a sum of the energy necessary for the generation of the carriers and the energies needed to overcome the intramolecular and intermolecular potential barriers. The values of the parameters characteristic of the semiconducting properties are determined in the first place by the structure of the polymers as a solid body. Crystallinity tends to improve the electrophysical...

[1]  Von Gerhard Kossmehl,et al.  Über die synthese polymerer indophenine und deren elektrische eigenschaften , 1968 .

[2]  D. D. Eley,et al.  Semiconduction in phenylene polymers , 1968 .

[3]  G. Manecke,et al.  Synthese und Eigenschaften einiger Polyimidazole , 1967 .

[4]  G. Manecke,et al.  Synthese und Halbleitereigenschaften arylsubstituierter Imidazole , 1967 .

[5]  I. Schopov.  Synthesis of a “Vat” polymer, poly-5,5′-biisatyl-[thiophene]-indophenine , 1966 .

[6]  A. A. Dulov.  ELECTRONIC PROPERTIES AND STRUCTURE OF POLYMERIC ORGANIC SEMICONDUCTORS , 1966 .

[7]  D. T. Longone,et al.  Heteroaromatic polymers. The polybithiazoles , 1965 .

[8]  H. Schmidt,et al.  Organische Halbleiter vom n-Typ. Zum Einfluß der Molekülstruktur von konjugierten Polyenen mit endständigen Elektronenakzeptorgruppen auf die elektrischen und thermoelektrischen Eigenschaften , 1965 .

[9]  D. Carlton,et al.  The Effect of Structure on the Electrical Conductivity of Organic Compounds. Polyazophenylenes1 , 1964 .

[10]  F. Beck.  Elektrische Messungen zur Charakterisierung von polymeren organischen Halbleitern , 1964 .

[11]  M. Hatano,et al.  Paramagnetic and electric properties of polyacetylene , 1961 .

[12]  H. Inokuchi,et al.  Electrical Conductivity of Organic Semiconductors , 1961 .

[13]  Anthony B. Pinkerton,et al.  Bull. Soc. Chim. Fr. , 1957 .

[14]  D. D. Eley,et al.  The semiconductivity of organic substances. Part 2 , 1955 .

[15]  H. Mix,et al.  Organische Katalysatoren, XXIX. Mitteil.: Künstliche Dehydrasen, IV. Mitteilung , 1949 .

[16]  W. Steinkopf,et al.  Studien in der Thiophenreihe. XXII. Zur Kenntnis des Indophenins II; Mit 3 Figuren im Text , 1932 .