High oxygen vacancy tin oxide synthesized by combustion chemical vapor deposition (CCVD)

Wu, Qi‐Hui; Song, Jie; Li, Jincai

doi:10.1002/sia.2944

Cited by 25 publications

(12 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 1 shows the Raman spectrum collected on the surface of a pellet obtained by hot pressing SnO 2 powder. The spectrum is charaterized by the presence of three peaks located at about 478, 633 and 776 cm −1 corresponding to the E g , A 1g and B 2g modes in good agreement with those observed in a single-crystal SnO 2 or poly-microcrystalline films 34 . Three broader and less intense bands can be observed at 350 cm −1 and between 400 and 800 cm −1 .…”

Section: Resultssupporting

confidence: 80%

Surface-enhanced Raman scattering of SnO2bulk material and colloidal solutions

et al. 2012

View full text Add to dashboard Cite

Surface enhanced Raman scattering (SERS) effects on tin dioxide in the form of bulk material, nanostructured thin films and colloidal solutions were investigated. Raman spectra are characterized by the three Raman scattering peaks at 478, 633, and 776 cm −1 , assigned to the Eg, A1g and B2g modes, typical of rutile SnO2. In presence of the silver nanoparticles, in addition to the enhancement intensity of some of the fundamental tin dioxide rutile Raman features, the appearance of a new Raman scattering peak at about 600 cm −1 is observed. This spectral features is observed, in presence of silver nanoparticles, also in other SnO2 based system such as pulsed laser deposited thin films, with different stoichiometry, and in water colloidal solutions. The observed SERS effects are explained in terms of electric-field gradient mechanism that are generated near a metal surface. In particular, the appearance of a peak near 600 cm −1 is attributed to the Raman activation of the infrared Eu transverse optical (TO) mode.

show abstract

Section: Resultssupporting

confidence: 80%

Surface-enhanced Raman scattering of SnO2bulk material and colloidal solutions

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Figure 8 shows the Raman spectra of SnO2 nanoparticles. The spectrum is analysed by the presence of three peaks located at about 478, 633 and 776 cm -1 which are in good agreement with those observed in rutile SnO2 single crystal [16,17]. The peak at 478 cm -1 can be assigned to the Eg mode, the peak at 633cm -1 can be indexed to the A1g mode, and the peak at 776 cm -1 can be indexed to the B 2g mode.…”

Section: Figure 4 Absorption Spectrum Of Sno2 Nanoparticlessupporting

confidence: 72%

Optical properties of SnO2 nanoparticles

Koshy¹,

Chandran²,

Samuel³

et al. 2014

AIP Conference Proceedings

View full text Add to dashboard Cite

SnO2 nanoparticles were successfully prepared by a sol-gel technique. The samples were analyzed by XRD, SEM, TEM, UV, Photoluminescence (PL) and Raman studies. The obtained product has a particle size of 12 nm with absorption peak at 278 nm. The absorption peak shows a blue shift when compared to the bulk due to quantum confinement. The FTIR spectrum of the prepared SnO2 nanoparticles exhibits a broad absorption band between 3100 and 3400 cm -1 as well as a narrower peak at 1600 cm -1 . The PL spectrum shows two strong peaks at 420 and 484 nm and broad peak between 430 and 470 nm.

show abstract

“…1B. The SnO 2 sample is characterized by a broad and structure-less band in the 450-650 cm -1 range, attributed to the presence of the amorphous SnO 2 phase [29] Moreover, a peak is barely visible at 633 cm −1 , corresponding to A 1g mode in good agreement with those observed in a single-crystal SnO 2 or poly-microcrystalline films [30]. The little shifting of D band was correlated with the structural changes, determined by the chemical bond interaction between GO and SnO 2 .…”

Section: Structural Characterizationssupporting

confidence: 65%