Photoluminescence in Strontium doped tin oxide thin films

Hunashimarad, Basavaraj G.; Bhat, J. S.; Raghavendra, P. V.; Bhajantri, R. F.

doi:10.1016/j.optmat.2021.110962

Cited by 15 publications

(3 citation statements)

References 51 publications

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“…Sr-doped SnO 2 NPs exhibit an emission peak at 436 and 503 nm in their PL spectra (Figure 5(c)). The band at 436–464 nm is caused by defect centres and in-plane oxygen vacancies within the energy gap [23, 24]. The green emission band observed near 503 nm is produced by the recombination of oxygen vacancies (singly charged) with conduction band electrons [25].…”

Section: Resultsmentioning

confidence: 99%

Cauliflower-like strontium-doped SnO₂ nanoparticles for photocatalytic degradation

Vallimeena

Helina

2023

Materials Science and Technology

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Three-dimensional (3D) cauliflower-shaped Strontium (Sr)-doped SnO2 nanoparticles were synthesised at ambient temperature through a simple co-precipitation technique. The 3D cauliflower-shaped 7 wt-% Sr-doped SnO2 nanoparticles increase light harvesting features and also promote electron transport across grain boundaries. 3D cauliflower-shaped Sr-doped SnO2 nanoparticles offer low charge transfer resistance, which is validated by the electrochemical impedance spectroscopy spectrum. XRD studies of SnO2 and Sr-doped SnO2 have revealed a tetragonal structure, and PL spectra corroborate the greater charge splitting. This study may be the first ever report on the 3D microstructure of cauliflower-shaped 7 wt-% Sr-doped SnO2 nanoparticles that demonstrated higher photocatalytic activity under visible-light for MB dye solution.

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Section: Resultsmentioning

confidence: 99%

Cauliflower-like strontium-doped SnO₂ nanoparticles for photocatalytic degradation

Vallimeena

Helina

2023

Materials Science and Technology

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“…41 Secondly, consequently, an increase in the band gap was observed with the Sr doping rate, appears to be associated with the enlargement of crystallite size, as indicated in the studies. [42][43][44][45] Furthermore, the band gap 46,47 is enhanced in the presence of strontium.…”

Section: Optical Propertiesmentioning

confidence: 99%

The effects of Sr-substitution in Ba₂SmTi₂Nb₃O₁₅ ceramics: structural study, optical properties, and complex impedance spectroscopy

Chourti,

Jalafi,

Bendahhou

et al. 2024

RSC Adv.

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“…SnO 2 thin films can be prepared by a variety of depositing processes, such as chemical vapour deposition (5) , sputtering (6) , spin coating (7) , thermal evaporation (8) , Pulsed laser deposition (9) , thermal oxidation (10) , spray pyrolysis (11) , sol-gel method (12) and Dr. Blade method (13) . These methods require sophisticated complex setups and are time consuming.…”

Section: Introductionmentioning

confidence: 99%

Rapid Synthesis of SnO2 Thin Films using Monoethanolamine through Wet Chemical Route

Murali¹,

Arts²,

Remadevi³

2021

IJST

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Objectives: To develop a unique wet chemical process for the rapid synthesis of SnO 2 thin films and hence to study the structural, morphological, optical and electrical properties of the films. Methods/Analysis: Polycrystalline SnO 2 thin films having a thickness in the range of 800-1000 nm with crystallite size less than 5 nm were synthesized within a time of 20 minutes and without the need of post-annealing using SILAR technique. Lattice parameters, c/a ratio, cell volume, dislocation density, refractive index, extinction coefficient and porosity of the SnO 2 thin films were determined. Findings: Films have a coarse and porous surface morphology with very fine pores distributed nearly uniformly on the film surface. The crystallite size and strain developed in the SnO 2 films were computed by the Williamson-Hall technique. Microstrain developed in the films is of the order of 10 -3 . SnO 2 films exhibit nearly 70% transmittance in the visible region. The optical band gap of the SnO 2 films is 3.65 eV. The refractive index of the films varies from 2.05 to 2.30 in the 450-1900 nm wavelength range. SnO 2 films exhibit a resistivity in the order of 10 -1 Ωcm. Novelty: Reports a unique rapid wet chemical process for the direct preparation of crystalline SnO 2 thin films using monoethaolamine at a temperature of 80 0 C. Literature survey reveals that no other method has yielded such type of good quality SnO 2 thin films at this temperature and without post annealing or sintering. First time crystalline SnO 2 films were prepared by a wet chemical process within 20 minutes.

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Photoluminescence in Strontium doped tin oxide thin films

Cited by 15 publications

References 51 publications

Cauliflower-like strontium-doped SnO₂ nanoparticles for photocatalytic degradation

Cauliflower-like strontium-doped SnO₂ nanoparticles for photocatalytic degradation

The effects of Sr-substitution in Ba₂SmTi₂Nb₃O₁₅ ceramics: structural study, optical properties, and complex impedance spectroscopy

Rapid Synthesis of SnO2 Thin Films using Monoethanolamine through Wet Chemical Route

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Photoluminescence in Strontium doped tin oxide thin films

Cited by 15 publications

References 51 publications

Cauliflower-like strontium-doped SnO2 nanoparticles for photocatalytic degradation

Cauliflower-like strontium-doped SnO2 nanoparticles for photocatalytic degradation

The effects of Sr-substitution in Ba2SmTi2Nb3O15 ceramics: structural study, optical properties, and complex impedance spectroscopy

Rapid Synthesis of SnO2 Thin Films using Monoethanolamine through Wet Chemical Route

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Cauliflower-like strontium-doped SnO₂ nanoparticles for photocatalytic degradation

Cauliflower-like strontium-doped SnO₂ nanoparticles for photocatalytic degradation

The effects of Sr-substitution in Ba₂SmTi₂Nb₃O₁₅ ceramics: structural study, optical properties, and complex impedance spectroscopy