Role of Cu in engineering the optical properties of SnO2 nanostructures: Structural, morphological and spectroscopic studies

Kumar, Virender; Singh, Kulwinder; Jain, Megha; Manju, .; Kumar, Akshay; Sharma, Jeewan; Vij, Ankush; Thakur, Anup

doi:10.1016/j.apsusc.2018.03.063

Cited by 56 publications

(30 citation statements)

References 41 publications

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“…Compared with the pure, the intensity of V-doped diffraction peaks decreases sharply, indicating that the doping degrades the SnO2 crystallinity too. Decreased in crystallite size with increasing dopant content also was reported by several works [14][15][16][17].…”

Section: Structural and Microstructural Characterizationsupporting

confidence: 79%

Vanadium Doping Effect on Multifunctionality of SnO2 Nanoparticles

Roca¹,

Desimone²,

Silva³

et al. 2020

J. Mater. Appl.

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In the present study, tin oxide (SnO2) nanoparticles were synthesized by a precursor polymeric method. The obtained nanoparticles were doped with vanadium. The samples were characterized by powder XRD, TEM, optical UV and EPR studies. XRD and TEM showed the rutile crystal structure and its revealed that the lattice cell parameters and particles size were decreased with dopant level. Optical and EPR data confirmed that the doped V enters into SnO2 and distorted the host material symmetry. The films sensing characteristics have been studied from the aspect of doping level of sensing material and microstructure. It is found that V doping on SnO2 enhance sensor sensitivity towards CO gas. The results demonstrated that V doping can improving numerous applications which the SnO2 response is maximized.

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Section: Structural and Microstructural Characterizationsupporting

confidence: 79%

Vanadium Doping Effect on Multifunctionality of SnO2 Nanoparticles

Roca¹,

Desimone²,

Silva³

et al. 2020

J. Mater. Appl.

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“…Metal oxides are drawing considerable attention owing to their non-toxic nature and tunable luminescence properties attributable to the defect states. Zinc aluminate (ZnAl 2 O 4 ) is a well known member of spinel family possessing versatile properties and magnificent applications [5][6][7][8][9][10] . It crystallizes in fcc crystal system with Fd3m space group.…”

mentioning

confidence: 99%

“…It is a n-type semiconducting material, its conductivity prominently attributed to Al Zn antisite defects which is a shallow defect near conduction band edge accompanied by cationic vacancies 12 . Due to complex crystal structure and multiple defect centers such as cationic-anionic vacancies, antisite defects and cationic interstitial, it shows alluring luminescence [6][7][8][9] . Most of the work has been reported on photoluminescence of undoped as well as doped ZnAl 2 O 4 [8][9][10][12][13][14][15][16] .…”

mentioning

confidence: 99%

Defect states and kinetic parameter analysis of ZnAl2O4 nanocrystals by X-ray photoelectron spectroscopy and thermoluminescence

Jain

Manju

Kumar

et al. 2020

Sci Rep

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Defect states in ZnAl 2 o 4 have a significant role in its applicability as a luminescent material. To understand the nature and distribution of defects in its crystal lattice, thermoluminescence (TL) study has been carried out. Excellent TL response is observed from γand ultraviolet-irradiated samples at different doses and exposure durations, respectively. Different type of fuels employed in combustion synthesis show a remarkable effect on the trap distribution and hence luminescence properties. Shallow and deep traps are observed in crystals attributed to O − vacancies and F + centers. The mechanism of trapping, retrapping and recombination have been depicted through schematic band model diagram. X-ray photoelectron spectroscopy indicated the presence of various types of defects specifically Al Zn antisite defect, oxygen and zinc vacancies which are further upheld by photoluminescence and Raman spectroscopy. All results when summed up, predict ZnAl 2 o 4 to be a quality material for dosimetry.

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“…Texture coefficient is calculated using the relation given below [31,32] (ℎ , , , ) = (ℎ , , , ) % (ℎ , , , )…”

Section: Fig 3 Pictorial Representation Of Accumulation Of Sno2 In Bmentioning

confidence: 99%

Insights of preferred growth, elemental and morphological properties of BN/SnO2 composite for photocatalytic applications towards organic pollutants

Singh

Kumar

et al. 2020

Chemical Physics

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Boron nitride (BN) has been explored these days because of its extraordinary optical, chemical and mechanical properties. BN is sensitive to its crystal structure that slight change in lattice parameters enormously change its properties. Present study deals with synthesis, characterization as well as photocatalytic applications of BN-based composite. When boron nitride was mixed with SnO2 having tetragonal crystal structure, dissociation into smaller sheets occurred and the material oriented to (102) plane. SnO2 particles attached both sides of BN sheets provided high surface area which make the material suitable for catalytic process. Presence of large number of active sites leads to the formation of hydroxyl radicals in BN/SnO2 composite which helps during degradation of organic and colourless pollutants i.e. methyl orange dye up-to ~92% under 7 minutes and salicylic acid in 40 minutes to ~82%. Results suggested that BN/SnO2 composite material possesses good capability for use in environmental as well as industrial applications.

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Role of Cu in engineering the optical properties of SnO2 nanostructures: Structural, morphological and spectroscopic studies

Cited by 56 publications

References 41 publications

Vanadium Doping Effect on Multifunctionality of SnO2 Nanoparticles

Vanadium Doping Effect on Multifunctionality of SnO2 Nanoparticles

Defect states and kinetic parameter analysis of ZnAl2O4 nanocrystals by X-ray photoelectron spectroscopy and thermoluminescence

Insights of preferred growth, elemental and morphological properties of BN/SnO2 composite for photocatalytic applications towards organic pollutants

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