Effects of post-deposition annealing on the structure and optical properties of Y2O3 thin films

Wang, X.J.; Zhang, L.D.; Zhang, J.P.; He, Guanghu; Liu, M.; Zhu, Liqiang

doi:10.1016/j.matlet.2008.07.003

Cited by 48 publications

(20 citation statements)

References 14 publications

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“…It is a suitable material for photonic waveguide due to its high band gap (5.72 eV), with a very high refractive index (~2) and a wide transmission range (280-8000 nm) [14]. Numerous techniques are applied on the synthesis of rare earth doped nanocrystalline Y 2 O 3 [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Thermoluminescence of combustion synthesized yttrium oxide

2012

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Pure yttrium oxide (Y 2 O 3 ) was prepared by solution combustion technique using disodium ethylene diamine tetra acetic acid (EDTA-Na 2 ) as fuel at~350°C. Powder X-ray diffraction (PXRD) pattern of Y 2 O 3 revealed cubic crystalline structure with crystallite size in the range of 18-23 nm. The scanning electron microscopy (SEM) indicated the foamy and fluffy nature of the sample. Fourier transformed infrared spectroscopy (FTIR) revealed four prominent absorption with peaks at 3395, 1433, 875 and 566 cm − 1 . From the optical absorption studies the energy gap of the synthesized sample was found to be 5.72 eV. Two well resolved thermoluminescence (TL) glows with peaks at 475 and 626 K were observed in γ-irradiated Y 2 O 3 . The glow curves were analyzed and the average activation energy was found to be 0.505 and 0.977 eV respectively.

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Section: Introductionmentioning

confidence: 99%

Thermoluminescence of combustion synthesized yttrium oxide

2012

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“…Refractive index n is linked to the relative porosity compared with that of bulk one. The volume fraction of porosity p can be extracted from the formula with the film refractive index n f and the bulk one n b [36]:…”

Section: Optical Propertiesmentioning

confidence: 99%

Controllable phase formation and physical properties of yttrium oxide films governed by substrate heating and bias voltage

Lei

Dai

Zhu

et al. 2015

Ceramics International

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“…Another factor should be concerned is the optical band gap (E g ) derived from the inverted dielectric functions. A common method to determine E g is to use Tauc plot, which has already been employed to acquire E g of Y 2 O 3 [22]. As illustrated in the inset of It is believed that the presence of defect and disorder in the film would yield localized states in the band structure which are responsible for the shrink of band gap [22].…”

Section: Optical Propertiesmentioning

confidence: 99%