Fabrication and characterization of Yb-doped Y2O3 powders and thin films
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Abstract
Yttrium oxide (Y2O3) and ytterbium (Yb)-doped Y2O3 particles were synthesized via the sol-gel method from the aqueous solution of their nitrate salts. The synthesized powders were then deposited on Corning glass substrates using an electron beam evaporation technique to examine the growth morphology of the thin films. The effect of the Yb dopant concentration on the microstructure and morphology of the Y2O3 powders and thin films was investigated using various characterization techniques. The synthesized powders and fabricated thin films have body-centered cubic structures with space group Ia-3. Based on the X-ray peak broadening, crystallite size and lattice parameters were evaluated with the Williamsom-Hall and Cohen-Wagner methods. The lattice parameter and crystallite size decrease with increasing Yb concentration. The intensities of the Raman peaks decrease due to microstructural disorder caused by the increase in the Yb dopant concentration. The band gap values of the powders also decrease depending on the dopant concentration, similar to the lattice parameter and crystallite size. While the synthesized powders have a sponge-like morphology, they exhibit different morphological structures depending on the dopant concentration when converted into thin films.
© 2020 by Walter de Gruyter Berlin/Boston
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- Notifications
- DGM
- CONFERENCES
- Imprint
Articles in the same Issue
- CONTENTS
- Original Contributions
- Low temperature and pressureless synthesis of MgAlON: qualitative analysis and formation evolution
- Electrical and optical studies on tungsten-substituted bismuth molybdates
- Charge transport measurements in compressed bulk graphene oxide
- Fabrication and characterization of Yb-doped Y2O3 powders and thin films
- An investigation of oxidation, hot corrosion, and thermal shock behavior of atmospheric plasma-sprayed YSZ–Al2O3 composite thermal barrier coatings
- Electrolytic synthesis of ZrSi/ZrC nanocomposites from ZrSiO4 and carbon black powder in molten salt
- Laser additive manufacturing of copper– chromium–niobium alloys using gas atomized powder
- On the evaluation of the constrained studded pressing method for producing nanocrystalline copper sheets
- Glass formation, nanocrystallisation and magnetic properties of the (Fe1–xCox)79Nb3B18 (x = 0, 0.15, 0.3, 0.45, 0.6, 0.75) metallic glasses
- Effect of TiC on coarsening and macrosegregation of Al–Bi alloys
- Notifications
- DGM
- CONFERENCES
- Imprint
