Isomerization and Disorder of Polyacetylene Induced by Doping | Zendy

Schügerl B. | Zendy; Kuzmany H. | Zendy

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Isomerization and Disorder of Polyacetylene Induced by Doping

Author(s) -

Schügerl B.,

Kuzmany H.

Publication year - 1982

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221110224

Subject(s) - doping , isomerization , polyacetylene , raman scattering , raman spectroscopy , materials science , scattering , chemistry , analytical chemistry (journal) , optics , optoelectronics , physics , organic chemistry , catalysis

Raman scattering experiments are reported for cis‐(CH) x and cis‐(CD) x doped with AsF 5 in a concentration range between 3 and 13%. The typical cis‐lines in the spectrum decreased with increasing doping concentration until they disappear completely at around 8%. Simultaneously the non‐resonant trans‐line at 1291 cm −1 is observed to increase and a special high‐frequency mode develops around 1590 cm −1 . From the experimental results it is shown that the generation of disorder and isomerization by doping is a general phenomenon. A strong increase of the scattering cross‐section observed for red laser light for the heavily doped material is correlated to a band gap closure.

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