Cathodoluminescence study of europium-doped zirconia and cassiterite powders

Gutzov, S.; Bredol, Michael; Wasgestian, F.

doi:10.1016/s0022-3697(97)00141-8

Cited by 41 publications

(21 citation statements)

References 18 publications

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“…It is essential to note that the most conventional methods for producing NMs involve the use of poisonous chemicals, sequence of stages and expensive precursors. Such methods incorporate the use of hydrothermal, solvothermal, sol-gels [8][9][10], microwave irradiation [11] co-precipitation [12] for preparation of NMs. However, in solution combustion synthesis (SCS) some metastable phases can be formed in short time so that novel materials can be prepared very easily.…”

Section: Introductionmentioning

confidence: 99%

Bio-mediated Sm doped nano cubic zirconia: Photoluminescent, Judd–Ofelt analysis, electrochemical impedance spectroscopy and photocatalytic performance

Gurushantha¹,

Anantharaju

Sharma³

et al. 2016

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Bio-mediated Sm doped nano cubic zirconia: Photoluminescent, Judd–Ofelt analysis, electrochemical impedance spectroscopy and photocatalytic performance

Gurushantha¹,

Anantharaju

Sharma³

et al. 2016

Journal of Alloys and Compounds

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“…Therefore, proper selection of red ͑Eu͒, green, and blue emitting REs as dopants in a common host material system could simplify some critical integration problems in the next generation of display and lighting technology. RE luminescence has been demonstrated in a variety of hosts such as fluoride glasses, [4][5][6] LiNbO 3 , 7 ZnO, 8,9 and ZrO 2 10 and SnO 2 , 10 and Al 2 O 3 and CaF 2 11 lanthanide OBr-based powder phosphors, 12 RE complexes in sol-gels 13 and wide band gap semiconductors including GaP, 14 SiC, 15 and III-V [16][17][18] compounds.…”

mentioning

confidence: 99%

Red light emission by photoluminescence and electroluminescence from Eu-doped GaN

Heikenfeld¹,

Garter²,

Lee³

et al. 1999

Applied Physics Letters

276

148

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Visible light emission has been obtained at room temperature by photoluminescence ͑PL͒ and electroluminescence ͑EL͒ from Eu-doped GaN thin films. The GaN was grown by molecular beam epitaxy on Si substrates using solid sources ͑for Ga and Eu͒ and a plasma source for N 2. X-ray diffraction shows the GaN:Eu to be a wurtzitic single crystal film. Above GaN band gap photoexcitation with a He-Cd laser at 325 nm resulted in strong red emission. Observed Eu 3ϩ PL transitions consist of a dominant narrow red line at 621 nm and several weaker emission lines were found within the green through red ͑543 to 663 nm͒ range. Below band gap PL by Ar laser pumping at 488 nm also resulted in red emission, but with an order of magnitude lower intensity. EL was obtained through use of transparent indium-tin-oxide contacts to the GaN:Eu film. Intense red emission is observed in EL operation, with a spectrum similar to that seen in PL. The dominant red line observed in PL and EL has been identified as the Eu 3ϩ 4 f shell transition from the 5 D 0 to the 7 F 2 state.

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“…Monocrystalline ZrO 2 nanoparticles were prepared from zirconium isopropoxide by slow hydrolysis and subsequent hydrothermal treatment of solutions containing various amounts of sodium hydroxide . The other modern schemes for the synthesis of zirconia powders doped with low‐valence metals are: coprecipitation, sonochemical, aqueous sol‐gel, and non‐aqueous sol‐gel methods.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of cubic phase in scandium‐doped zirconia nanocrystals synthesized with sol‐gel method

et al. 2018

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A new room‐temperature synthesis of nanocrystals of scandium‐doped zirconium oxide by sol‐gel method is reported. The structure of the obtained product is checked with standard structural analysis methods. The crystal phase of ZrO2‐Sc2O3 nanocrystals changes from monoclinic to tetragonal and cubic with the increase in scandium concentration. The importance of the cubic phase, which appears at 10 mol% and refines at 16 mol% of Sc2O3 concentration, is emphasized. The UV‐Vis absorption spectra of the product are measured, and its bandgap is evaluated from the fundamental absorption edge. The value of the bandgap was calculated as 5.65 eV for the cubic phase.

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Cathodoluminescence study of europium-doped zirconia and cassiterite powders

Cited by 41 publications

References 18 publications

Bio-mediated Sm doped nano cubic zirconia: Photoluminescent, Judd–Ofelt analysis, electrochemical impedance spectroscopy and photocatalytic performance

Bio-mediated Sm doped nano cubic zirconia: Photoluminescent, Judd–Ofelt analysis, electrochemical impedance spectroscopy and photocatalytic performance

Red light emission by photoluminescence and electroluminescence from Eu-doped GaN

Stabilization of cubic phase in scandium‐doped zirconia nanocrystals synthesized with sol‐gel method

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