Preparation and characterization of SnO<sub>2</sub>films for sensing applications

Stefanov, P.; Atanasova, G.; Manolov, E.; Raicheva, Z.; Lazarova, V.

doi:10.1088/1742-6596/100/8/082046

Cited by 22 publications

(14 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 4 shows AFM images of MS-SnO 2 film spread over a quartz substrate using magnetron sputtering. The presented surface was highly homogenous and smooth, which was consistent with the results of AFM and SEM tests given in [ 37 , 49 ]. The 100 nm film was very smooth, and irregularities were only 3–5 nm with an RMS of about 0.5–0.8 nm and an average grain diameter of 13 nm ( Figure 4 b).…”

Section: Resultssupporting

confidence: 90%

Structure, Surface Morphology, Chemical Composition, and Sensing Properties of SnO2 Thin Films in an Oxidizing Atmosphere

Izydorczyk

2021

Sensors

View full text Add to dashboard Cite

We conducted experiments on SnO2 thin layers to determine the dependencies between the stoichiometry, electrochemical properties, and structure. This study focused on features such as the film structure, working temperature, layer chemistry, and atmosphere composition, which play a crucial role in the oxygen sensor operation. We tested two kinds of resistive SnO2 layers, which had different grain dimensions, thicknesses, and morphologies. Gas-sensing layers fabricated by two methods, a rheotaxial growth and thermal oxidation (RGTO) process and DC reactive magnetron sputtering, were examined in this work. The crystalline structure of SnO2 films synthesized by both methods was characterized using XRD, and the crystallite size was determined from XRD and AFM measurements. Chemical characterization was carried out using X-ray photoelectron (XPS) and Auger electron (AES) spectroscopy for the surface and the near-surface film region (in-depth profiles). We investigated the layer resistance for different oxygen concentrations within a range of 1–4%, in a nitrogen atmosphere. Additionally, resistance measurements within a temperature range of 423–623 K were analyzed. We assumed a flat grain geometry in theoretical modeling for comparing the results of measurements with the calculated results.

show abstract

Section: Resultssupporting

confidence: 90%

Structure, Surface Morphology, Chemical Composition, and Sensing Properties of SnO2 Thin Films in an Oxidizing Atmosphere

Izydorczyk

2021

Sensors

View full text Add to dashboard Cite

show abstract

“…Therefore, MCM-41 is an appropriate carrier for metal loading by both CVD and impregnation procedures. As the tin loading of the synthesized materials is low, the binding energy signal for oxygen associated to Sn-O around 530 eV is not observed [38,39]. However, as aforementioned for Si2p the presence of Sn-O-Si is also related to the shift to higher binding energy of O1s signal for Sn supported materials which is pronounced in SnCl 2 -H1-43 [40].…”

Section: Nature Of Tin Active Species For Nopol Synthesismentioning

confidence: 79%

Nopol production over Sn-MCM-41 synthesized by different procedures – Solvent effects

Alarcón

Correa

Montes

et al. 2010

Microporous and Mesoporous Materials

View full text Add to dashboard Cite

“…The O1s spectrum in figure 6(b) shows the main peak at 530.6 eV with a shoulder at 532.1 eV, which were attributed to lattice oxygen and oxygen in absorbed hydroxyl groups [20]. Figure 7 shows thermogravimetry curves of pristine cellulose and SnO 2 and of the cellulose-SnO 2 nanocomposites.…”

Section: Xps Analysismentioning

confidence: 99%

Hybrid nanocomposite based on cellulose and tin oxide: growth, structure, tensile and electrical characteristics

Mahadeva

Kim

2011

Science and Technology of Advanced Materials

View full text Add to dashboard Cite

A highly flexible nanocomposite was developed by coating a regenerated cellulose film with a thin layer of tin oxide (SnO 2 ) by liquid-phase deposition. Tin oxide was crystallized in solution and formed nanocrystal coatings on regenerated cellulose. The nanocrystalline layers did not exfoliate from cellulose. Transmission electron microscopy and energy dispersive x-ray spectroscopy suggest that SnO 2 was not only deposited over the cellulose surface, but also nucleated and grew inside the cellulose film. Current-voltage characteristics of the nanocomposite revealed that its electrical resistivity decreases with deposition time, with the lowest value obtained for 24 h of deposition. The cellulose-SnO 2 hybrid nanocomposite can be used for biodegradable and disposable chemical, humidity and biosensors.

show abstract

Preparation and characterization of SnO₂films for sensing applications

Cited by 22 publications

References 9 publications

Structure, Surface Morphology, Chemical Composition, and Sensing Properties of SnO2 Thin Films in an Oxidizing Atmosphere

Structure, Surface Morphology, Chemical Composition, and Sensing Properties of SnO2 Thin Films in an Oxidizing Atmosphere

Nopol production over Sn-MCM-41 synthesized by different procedures – Solvent effects

Hybrid nanocomposite based on cellulose and tin oxide: growth, structure, tensile and electrical characteristics

Contact Info

Product

Resources

About

Preparation and characterization of SnO2films for sensing applications

Cited by 22 publications

References 9 publications

Structure, Surface Morphology, Chemical Composition, and Sensing Properties of SnO2 Thin Films in an Oxidizing Atmosphere

Structure, Surface Morphology, Chemical Composition, and Sensing Properties of SnO2 Thin Films in an Oxidizing Atmosphere

Nopol production over Sn-MCM-41 synthesized by different procedures – Solvent effects

Hybrid nanocomposite based on cellulose and tin oxide: growth, structure, tensile and electrical characteristics

Contact Info

Product

Resources

About

Preparation and characterization of SnO₂films for sensing applications