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Electric field modulated spectra of polydiacetylene single crystal (PTS)

✍ Scribed by L. Sebastian; G. Weiser

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
486 KB
Volume
64
Category
Article
ISSN
0009-2614

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✦ Synopsis

The eIectrorefIectance and eIectroabsorption spem of FTS sIngIe crystals zhow a unique dependence on the orientation of the external field which reffects the quasi one-dimensional character of the ne!ectron system of the polymer chain. Above the range of excitonic transitions a strong eIectrorefIectance signal indicates the onset of interband transitions near 244 eV_ Exci~onic and intzrband transitions are observed for poktrization of light paraUe1 as well as perpendicular to the chain_ Below the absorption e&e a weak transition is found at l-75 eV which may be correktted to the comparabIy high

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