Effect of Er3+ doping in SnO2 semiconductor nanoparticles synthesized by solgel technique

Sambasivam, Sangaraju; Kim, Saes Byul; Jeong, Jung Hyun; Choi, Byung Chun; Lim, Kwon Taek; Kim, Sang Su; Song, Tae Kwon

doi:10.1016/j.cap.2010.05.001

Cited by 33 publications

(8 citation statements)

References 25 publications

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“…Once the Co 2? ions are introduced into the solution, hydrolysis is favored thus leading to the formation of Co (OH) 4 2-anions along with small quantity of CoSn(OH) 6 nuclei are also formed in the reaction environment. These smaller nuclei begin to grow into larger nuclei via the Ostwald ripening process.…”

Section: Effect Of Impuritiesmentioning

confidence: 99%

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Microwave assisted synthesis of Sn(1−x)CoxO2 nanoparticles: effect of impurity phase formation on structural, optical and electrochemical properties

Sephra

Baraneedharan

Chidambaram

et al. 2016

J Mater Sci: Mater Electron

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Nanocrystalline Sn (1-x) Co x O 2 (x = 0, 0.01, 0.03 and 0.05) nanoparticles have been synthesized under microwave irradiation using oxalic acid (H 2 C 2 O 4 ) as reducing agent. X-ray diffraction studies show that the prepared nanoparticles are crystalline with tetragonal crystal system and with few additional phases, which is further supported by Raman spectroscopy. The variation in molar concentration of Co 2? ions had a significant effect on size and morphological aspects which is evident from high resolution microscopic images. The emission owing to band edge position, recombination with V o ?? centers and recombination with shallow level defects were observed from the Photoluminescence spectrum. The existence of room temperature ferromagnetism has been clearly observed using magnetization hysteresis measurements and the magnetic moments are found to decrease with the increased cobalt ions concentration. The decrease in charge carriers that arises due to the formed impurity phases and its significant effect on electron transfer capability have been discussed with the assistance of cyclic voltammetry. This study possibly will bring better insight for understanding the effects of doping concentration, formation of impurity phases and explicate the consequences of them on various properties of nanostructured materials.

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Section: Effect Of Impuritiesmentioning

confidence: 99%

“…Metal oxides extend an ample technological importance from wide band gap materials due to their size induced properties. A variety of pure and doped semiconductor metal oxides have been investigated for their morphological, electrical and optical properties [5,6].…”

Section: Introductionmentioning

confidence: 99%

Microwave assisted synthesis of Sn(1−x)CoxO2 nanoparticles: effect of impurity phase formation on structural, optical and electrochemical properties

Sephra

Baraneedharan

Chidambaram

et al. 2016

J Mater Sci: Mater Electron

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“…As a transparent n-type semiconductor with a band gap of 3.6 eV, SnO 2 can be used as photoelectric devices, sensors, catalysts, and other functional materials [ 2 ]. Due to the unique physicochemical properties of SnO 2 and enhanced sensing properties of nanostructured materials, quasi-one-dimensional (1D) SnO 2 nanomaterials are being widely studied [ 3 ]. Various methods were developed to synthesize nanostructured SnO 2 materials, such as the sol-gel method, liquid precursor method [ 4 ], electroplating tin thermal oxidation method [ 5 ], and chemical vapor deposition (CVD) method [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

The Sensing Properties of Single Y-Doped SnO2 Nanobelt Device to Acetone

Liu

et al. 2016

Nanoscale Res Lett

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Pure SnO2 and Y-doped SnO2 nanobelts were prepared by thermal evaporation at 1350 °C in the presence of Ar carrier gas (30 sccm). The samples were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), energy dispersion spectrometer (EDS), X-ray photoelectron spectrometer (XPS), UV-Vis absorption spectroscopy, Raman spectroscopy, and Fourier transform infrared spectrum (FTIR). The sensing properties of the devices based on a single SnO2 nanobelt and Y-doped SnO2 nanobelt were explored to acetone, ethanol, and ethanediol. It reveals that the sensitivity of single Y-doped SnO2 nanobelt device is 11.4 to 100 ppm of acetone at 210 °C, which is the highest response among the three tested VOC gases. Y3+ ions improve the sensitivity of SnO2 sensor and have an influence on the optical properties of Y-doped SnO2 nanobelts.Electronic supplementary materialThe online version of this article (doi:10.1186/s11671-016-1685-1) contains supplementary material, which is available to authorized users.

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“…The energy transfer from semiconductor nanocrystals to Er 3+ ions can efficiently compensate the small cross-section of rare earth transitions. Numerous works have reported the photoluminescent properties of Er 3+ ions in different semiconductors host via indirect or direct excitation [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Tin Dioxide Nanocrystals as an Effective Sensitizer for Erbium Ions in Er-Doped SnO₂Systems for Photonic Applications

Vân

Giang

et al. 2016

Journal of Nanomaterials

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Undoped SnO2and erbium-doped SnO2powders were successfully prepared by precipitation method. The effect of the heat treatment and doping contents on the structure of tin oxide and optical properties was also studied. The XRD data and Raman spectra indicate that the SnO2crystals have formed after being heat-treated at 400°C and the average size of grains is about 8 nm for doping content of 1 mol%. An increase of doping concentration has controlled the growth of nanocrystals. The principle of the visible and infrared emissions of SnO2and SnO2:Er is also discussed. All photoluminescence study shows that the Er3+ions can be located in SnO2nanocrystals and that there is energy transfer from defect levels of SnO2nanoparticles to neighboring Er3+ions of crystals.

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Effect of Er3+ doping in SnO2 semiconductor nanoparticles synthesized by solgel technique

Cited by 33 publications

References 25 publications

Microwave assisted synthesis of Sn(1−x)CoxO2 nanoparticles: effect of impurity phase formation on structural, optical and electrochemical properties

Microwave assisted synthesis of Sn(1−x)CoxO2 nanoparticles: effect of impurity phase formation on structural, optical and electrochemical properties

The Sensing Properties of Single Y-Doped SnO2 Nanobelt Device to Acetone

Tin Dioxide Nanocrystals as an Effective Sensitizer for Erbium Ions in Er-Doped SnO₂Systems for Photonic Applications

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Effect of Er3+ doping in SnO2 semiconductor nanoparticles synthesized by solgel technique

Cited by 33 publications

References 25 publications

Microwave assisted synthesis of Sn(1−x)CoxO2 nanoparticles: effect of impurity phase formation on structural, optical and electrochemical properties

Microwave assisted synthesis of Sn(1−x)CoxO2 nanoparticles: effect of impurity phase formation on structural, optical and electrochemical properties

The Sensing Properties of Single Y-Doped SnO2 Nanobelt Device to Acetone

Tin Dioxide Nanocrystals as an Effective Sensitizer for Erbium Ions in Er-Doped SnO2Systems for Photonic Applications

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Product

Resources

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Tin Dioxide Nanocrystals as an Effective Sensitizer for Erbium Ions in Er-Doped SnO₂Systems for Photonic Applications