Resonant Raman scattering from polyacetylene and poly(p-phenylene vinylene) chains included into hydrogenated amorphous carbon
Autor: | Rybachuk*, M., Hu, A., Bell, J. M. |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | Applied Physics Letters 93, 051904 (2008) |
Druh dokumentu: | Working Paper |
DOI: | 10.1063/1.2965458 |
Popis: | The resonant Raman scattering in N-IR - UV range from amorphous hydrogenated carbon (a-C:H) reveal inclusions of trans-polyacetylene (trans-(CH)x) chains with approximate length of up to 120 C=C units and inclusions of poly(p-phenylene vinylene) (PPV) polymer chains. The PPV is evidenced by a strong dispersive mode at ca. 1175 cm-1. It was found that the Raman response from core Ag trans-(CH)x modes incorporated into a-C:H to changing excitation energy is identical to of free-standing chains thus facilitating identification of trans-(CH)x in complex carbonaceous materials spectra. Comment: 11 pages, 3 figures |
Databáze: | arXiv |
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