Synthesis and characteristics of SnO2 nanorods on Pd-coated substrates

Kim, Hyoun Woo; Shim, Seung Hyun; Myung, Ju Hyun

doi:10.1590/s0103-97332005000600016

Cited by 14 publications

(4 citation statements)

References 5 publications

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“…A broad visible emission with wavelength centered at around 623 nm is observed, corresponding to 1.99 eV and usual near band edge emission of SnO 2 is not observed. This visible light emission is due to oxygen vacancies or Sn interstitials that formed during synthesis process, which know to be related to defects levels within the band gap of SnO 2 [9,18,19].Similar PL emission was reported earlier. The reported emission was around 595 nm for different SnO 2 nanostructurs [9,17,18].…”

Section: Fig 2: Xrd Pattern Of As-grown Sno 2 Thin Filmsupporting

confidence: 84%

Synthesis and Characterization of Grape-Like SnO2 Structures Grown by a Thermal Evaporation Method

Lim

Hamid

Shamsudin

et al. 2013

MSF

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Grape-like tin dioxide (SnO2) structures have been grown onp-type silicon (Si(100)) substrate synthesized by thermal evaporation of tin (Sn) without use of metal catalyst. The experiment were conducted in a three-zone tube furnace at a constant temperature of 1080°C,under 1.6% of oxygen (O2) gas in an atmospheric ambient with a controlled flow rate of 1.0L/min. The prepared SnO2film was characterized by using X-ray diffraction diffractometer (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy(EDX) and photoluminescence (PL) measurement. The grape-like SnO2structures were highly crystalline with particle size (resemble grape fruit) ranging from 120-550 nm and diameter of wire (resemble grape stem) around 120-160 nm.The PL spectrum of the grape-like SnO2structures exhibits a broad visible light emission with a peak centered at around 623 nm, corresponding to 1.99 eV and usual near band edge emission of SnO2is not observed.

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Section: Fig 2: Xrd Pattern Of As-grown Sno 2 Thin Filmsupporting

confidence: 84%

Synthesis and Characterization of Grape-Like SnO2 Structures Grown by a Thermal Evaporation Method

Lim

Hamid

Shamsudin

et al. 2013

MSF

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“…The Visible emission with a peak wavelength position of around 528 nm (corresponding to 2.34 eV) is dominantly observed. Similar shape was also found in literature [16][17][18][19]. The strong yellow emission band can be attributed to the trap emission.…”

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confidence: 89%

Synthesis and Characterization of SnO2 Nanowires Materials Prepared from Tin Powder

Inchidjuy

Pukird

2010

AMR

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Tin dioxide (SnO2) materials are prepared by using vapor transport techniques through a vapor-liquid-solid (VLS) mechanism from Tin (Sn) powder. The SnO2 materials are synthesized onto the silicon substrate at temperatures 850 0C. Crystalline structure of SnO2 nanowires was investigated by X-ray diffraction (XRD) spectroscopy. XRD patterns of SnO2 exhibited tetragonal rutile structure with lattice parameters of a = 4.73 oA and c = 3.18 oA. Surface morphology of SnO2 films was characterized by scanning electron microscope (SEM), that SEM micrographs indicate nanowires-like structure. The Raman spectra of single-crystalline rutile SnO2 nanowires were studied, three vibration modes were observed at 475, 635 and 775 cm-1 corresponded to the typical feature of the SnO2 nanowires. A room temperature photoluminescence (PL) spectrum of SnO2 nanowires were in visible emission range.

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“…The emission of 2.40 eV (516 nm, peak 2) could be assigned to singly-charged oxygen vacancies. 4,[31][32][33][34] The results from XPS indicate that there are large numbers of V O on the surfaces of the samples.…”

Section: Resultsmentioning

confidence: 98%

Singly-charged oxygen vacancy-induced ferromagnetism in mechanically milled SnO₂powders

Shi

Gao

et al. 2014

RSC Adv.

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The possibility of inducing long-range ferromagnetic order with non-transition metal ions has become a very exciting challenge in recent years. In order to elucidate the room temperature ferromagnetism of SnO 2 powders, the magnetic properties of SnO 2 powders that have been mechanically milled and subsequently annealed have been investigated. The results indicate that saturation magnetization of the samples increases with milling time, where a high saturation magnetization of 0.0012 emu g À1 can be obtained for the sample milled for 20 h, and saturation magnetization for the sample decreases gradually after annealing in air. Electron spin resonance results show large numbers of singly-charged oxygen vacancies on the surfaces of the SnO 2 powders. Combined with X-ray photoelectron spectroscopy and room temperature photoluminescence results, this suggests that the observed ferromagnetism is related to the singly-charged oxygen vacancies.

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Synthesis and characteristics of SnO2 nanorods on Pd-coated substrates

Cited by 14 publications

References 5 publications

Synthesis and Characterization of Grape-Like SnO<sub>2</sub> Structures Grown by a Thermal Evaporation Method

Synthesis and Characterization of Grape-Like SnO<sub>2</sub> Structures Grown by a Thermal Evaporation Method

Synthesis and Characterization of SnO<sub>2</sub> Nanowires Materials Prepared from Tin Powder

Singly-charged oxygen vacancy-induced ferromagnetism in mechanically milled SnO₂powders

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Synthesis and characteristics of SnO2 nanorods on Pd-coated substrates

Cited by 14 publications

References 5 publications

Synthesis and Characterization of Grape-Like SnO<sub>2</sub> Structures Grown by a Thermal Evaporation Method

Synthesis and Characterization of Grape-Like SnO<sub>2</sub> Structures Grown by a Thermal Evaporation Method

Synthesis and Characterization of SnO<sub>2</sub> Nanowires Materials Prepared from Tin Powder

Singly-charged oxygen vacancy-induced ferromagnetism in mechanically milled SnO2powders

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Singly-charged oxygen vacancy-induced ferromagnetism in mechanically milled SnO₂powders