Difference of SERS ability from titanium oxide films by Ti3+ self-doping
Source abstract
Abstract
Abstract With the Ti 3+ self-doping, the surface-enhanced Raman scattering (SERS) ability of titanium oxide films shows difference. In this paper, the titanium oxide films were fabricated by electron beam evaporation under different oxygen flow. The surface morphology, element composition, optical property and SERS ability were characterized, respectively. The X-ray photoelectron spectroscopy reveals the existence of two different valence states of titanium ion in samples. Both the optical absorption and the bandgap shows difference when various quantities of Ti 3+ was doped, which is related to the SERS ability. As a result, the Raman scattering intensity of RhB molecule increases when the number of Ti 3+ increases. In conclusion, the SERS ability of titanium oxide films is related to the amount of doped Ti 3+ in film, which is valuable to the SERS research.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Copper-based nanomaterials and applications · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
1. Raman spectra of pyridine adsorbed at a silver electrode10.1016/0009-2614(74)85388-1 ↗
2. Surface raman spectroelectrochemistry : Part I. Heterocyclic, aromatic, and aliphatic amines adsorbed on the anodized silver electrode10.1016/S0022-0728(77)80224-6 ↗
3. Surface roughness and the enhanced intensity of Raman scattering by molecules adsorbed on metals10.1063/1.437095 ↗
4. Photo-induced enhanced Raman spectroscopy for universal ultra-trace detection of explosives, pollutants and biomolecules10.1038/ncomms12189 ↗
5. Noble metal-comparable SERS enhancement from semiconducting metal oxides by making oxygen vacancies10.1038/ncomms8800 ↗
6. Electrochemical photolysis of water at a semiconductor electrode10.1038/238037a0 ↗
7. Titanium and silver contacts on thermally oxidized titanium chip: electrical and gas sensing properties10.1016/j.sse.2010.12.007 ↗
8. Pulker · 1999
9. Titanium dioxide nanomaterials for photovoltaic applications10.1021/cr400606n ↗
10. Plasmonic electrically functionalized TiO2 for high-performance organic solar cells10.1002/adfm.201203776 ↗
11. Study of MOS capacitors with TiO2 and SiO2/TiO2 gate dielectric
12. Characterization of oxygen vacancy associates within hydrogenated TiO2: a positron annihilation study10.1021/jp307573c ↗
13. Increasing solar absorption for photocatalysis with black hydrogenated titanium dioxide nanocrystals10.1126/science.1200448 ↗
14. Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films10.1063/1.3075844 ↗
15. Bhushan · 2012
16. Fundamental structure forming phenomena of polycrystalline films and the structure zone models10.1016/S0040-6090(97)00503-8 ↗
17. Structure-zone models of thin films
18. Synthesis of TiO2 porous films by atmospheric dielectric barrier discharge plasma at room temperature
19. Determination of the concentration of surface hydroxyl groups on metal oxide films by a quantitative XPS method10.1002/(SICI)1096-9918(199807)26:8<549::AID-SIA396>3.0.CO;2-Q ↗
20. Surface characterisation of plasma-nitrided titanium: an XPS study10.1016/0169-4332(94)00545-1 ↗
21. Tungsten doped TiO2 with enhanced photocatalytic and optoelectrical properties via aerosol assisted chemical vapor deposition10.1038/srep10952 ↗
22. Aerosol assisted chemical vapor deposition of conductive and photocatalytically active tantalum doped titanium dioxide films10.1039/C4TA01618A ↗
23. Synthesis and structure of nanocrystalline TiO2 with lower band gap showing high photocatalytic activity10.1021/la035777v ↗
24. A simple spectrophotometric method for determination of the optical constants and band gap energy of multiple layer TiO2 thin films10.1016/j.matchemphys.2003.09.030 ↗
25. Evidence of oxygen vacancy induced room temperature ferromagnetism in solvothermally synthesized undoped TiO2 nanoribbons10.1039/c3nr00799e ↗
26. Surface and resonance enhanced micro-Raman spectroscopy of xanthene dyes at the single-molecule level10.1016/j.jlumin.2003.12.041 ↗
27. Hydrogen-treated TiO2 nanowire arrays for photoelectrochemical water splitting10.1021/nl201766h ↗