Infrared (IR) and x-ray photoemission spectroscopy (XPS) studies have been made on heterogeneously iodine-doped polyphenylacetylene (PPA) polymer films. Similarities and differences between the doping processes (heterogeneous and homogeneous) are presented. Results point to a surface doping process in the heterogeneously doped films vs. a bulk process in the homogeneously doped materials (doped in solution). The counter anion moiety in the films appears to be the polyiodide I5- ion, as contrasted to the bulk powder (homogeneously doped) polymer in which the species of I2, I3- in the presence of a predominance of I5- ion coexist.
COMPARISON OF HETEROGENEOUSLY AND HOMOGENEOUSLY DOPED POLYPHENYLACETYLENE USING IR AND XPS / J. R., Ferraro; S., Hill; P., Stout; A., Furlani; G., Polzonetti; Russo, Maria Vittoria. - In: APPLIED SPECTROSCOPY. - ISSN 0003-7028. - 45:6(1991), pp. 932-937. [10.1366/0003702914336192]
COMPARISON OF HETEROGENEOUSLY AND HOMOGENEOUSLY DOPED POLYPHENYLACETYLENE USING IR AND XPS
RUSSO, Maria Vittoria
1991
Abstract
Infrared (IR) and x-ray photoemission spectroscopy (XPS) studies have been made on heterogeneously iodine-doped polyphenylacetylene (PPA) polymer films. Similarities and differences between the doping processes (heterogeneous and homogeneous) are presented. Results point to a surface doping process in the heterogeneously doped films vs. a bulk process in the homogeneously doped materials (doped in solution). The counter anion moiety in the films appears to be the polyiodide I5- ion, as contrasted to the bulk powder (homogeneously doped) polymer in which the species of I2, I3- in the presence of a predominance of I5- ion coexist.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
