Infra-red transmission of highly iodine-doped polyacetylene films
| Autor: | M. Palpacuer, M. Rolland, M. J. M. Abadie, O. Bernard, C. Deloupy |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Polymers and Plastics
Dopant Infrared Chemistry Organic Chemistry Doping technology industry and agriculture Thermal treatment Photochemistry Metal Polyacetylene chemistry.chemical_compound visual_art Materials Chemistry visual_art.visual_art_medium Absorption (chemistry) human activities Isomerization |
| Zdroj: | Polymer. 23:1847-1850 |
| ISSN: | 0032-3861 |
| DOI: | 10.1016/0032-3861(82)90133-1 |
| Popis: | The physical properties of polyacetylene films are strongly modified by doping and in particular its optical absorption drastically increases in the middle infra-red range. The aim of this report is to study the behaviour of infra-red transmission between 4000 and 400 cm−1 when doping (CH)x with iodine. It is shown that the excess absorption due to the dopant is a reversible phenomena, however the cis to trans isomerization induced by doping remains. Elsewhere we have studied the evolution of the transmission at a very high doping level, up to twenty per cent of dopant, and showed that even in the metallic range ( ⋍ six per cent of dopant ) some short cis sequences exist. Consequently this is evidence that doping is a less efficient isomerization process than thermal treatment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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