Optical absorption studies of sodium doped poly(cyanoterephthalylidene)

Optical absorption studies of sodium doped poly(cyanoterephthalylidene)

The effects of doping poly(cyanoterephthalylidene) with sodium in ultrahighvacuum been studied by optical absorption spectroscopy. Upon doping, new optical transitions are observed within the bandgap; the characteristics of these transitions are consistent with the formation of bipolarons. The optic...

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Veröffentlicht in:Synthetic metals 1994, Vol.67 (1), p.93-96
Hauptverfasser: Bröms, P., Fahlman, M., Xing, K.Z., Salaneck, W.R., Dannetun, P., Cornil, J., dos Santos, D.A., Brédas, J.L., Moratti, S.C., Holmes, A.B., Friend, R.H.
Format: Artikel
Sprache:eng
Schlagworte:
Doping
Optical absorption
Poly(cyanoterephthalylidene)
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Zusammenfassung:The effects of doping poly(cyanoterephthalylidene) with sodium in ultrahighvacuum been studied by optical absorption spectroscopy. Upon doping, new optical transitions are observed within the bandgap; the characteristics of these transitions are consistent with the formation of bipolarons. The optical absorption results are confirmed by direct measurements of the doping-induced gap states using ultraviolet photoelectron spectroscopy.
ISSN:0379-6779
1879-3290
1879-3290
DOI:10.1016/0379-6779(94)90017-5