Resonant Raman scattering from polyacetylene and poly(p-phenylene vinylene) chains included into hydrogenated amorphous carbon

Autor: Rybachuk*, M., Hu, A., Bell, J. M.
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