| Autor: |
Keane, M. P., Svensson, S., Naves de Brito, A., Correia, N., Lunell, S., Sjögren, B., Inganäs, O., Salaneck, W. R. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 11/1/1990, Vol. 93 Issue 9, p6357, 6p |
| Abstrakt: |
Previously, a geometrical model of the thermochromism in poly(3-alkylthiophene) was proposed, based upon an analysis of optical absorption spectra as well as ultraviolet and x-ray photoelectron spectra (UPS and XPS). In the present contribution, the shake-up features in the XPS C(1s) spectra of thiophene, hexyl-substituted thiophene, and bithiophene molecules in the gas phase, are compared with the shake-up features in previously published XPS C1s spectra of poly(3-hexylthiophene) and poly(3-butylthiophene). An analysis of these gas phase molecular data confirms the geometric model of electronic localization in the polymer materials proposed previously. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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