Surface enhanced Raman scattering (SERS) investigation of amorphous carbon

Veres, M ✉ [Veres, Miklós (Optika, Raman-spe...), szerző] Amorf vékonyrétegek (SZFKI); Füle, M [Füle, Miklós Jenő (Lézerfény-anyag k...), szerző] KFKI Szilárdtestfizikai és Optikai Kutató Intézet; Tóth, S [Tóth, Sára (Szén szerkezetek,...), szerző] Amorf vékonyrétegek (SZFKI); Koós, M [Koós, Margit (Amorf félvezetők,...), szerző] Amorf vékonyrétegek (SZFKI); Pócsik, I [Pócsik, István, szerző] Lézeralkalmazási Osztály (SZFKI)

Angol nyelvű Szakcikk (Folyóiratcikk) Tudományos
Megjelent: DIAMOND AND RELATED MATERIALS 0925-9635 1879-0062 13 (4-8) pp. 1412-1415 2004
  • SJR Scopus - Electrical and Electronic Engineering: D1
Azonosítók
Szakterületek:
  • Fizika
Surface enhanced Raman scattering (SERS) was applied to study hydrogenated amorphous carbon (a-C:H) and amorphous carbon (a-C) samples. Carbon free silver colloid served as SERS active medium; it was dried on the sample surface. The Raman signal amplitude increase by order of magnitude was observed. Further enhancement was recorded on the Raman spectrum as a result of the blinking phenomenon, which took place applying certain measurements conditions. A number of reproducible peaks was observed in the D and G band region both for a-C:H and a-C. Coexistence of these peaks in one sample's spectrum indicates that the amorphous carbon D and G peaks consist of several components: they are inhomogeneously broadened. For a given amorphous carbon sample the shape of the conventional Raman spectrum is determined by vibrations of dominant structural units. SERS gives the possibility to identify these units; moreover, presence of other components, not so characteristic for the sample, also can be evaluated. © 2004 Elsevier B.V. All rights reserved.
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2025-01-04 06:28