The effect of Yb doping on ZnO thin films obtained via a low-temperature spin coating method

López-Mena, Edgar R.; Ceballos-Sánchez, O.; Hooper, Thomas J. N.; Sánchez-Ante, Gildardo; Rodríguez-Muñoz, Mateo; Renteria-Salcedo, Jose Antonio; Elı́as-Zúñiga, Alex; Sánchez-Martínez, A.

doi:10.1007/s10854-020-04785-7

Cited by 12 publications

(8 citation statements)

References 65 publications

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“…With increasing the Yb content from 0.2 to 0.4 wt%, the average grain size decreases to 4.0 μm, while further increase of the Yb content up to 1.0 wt% practically does not affect the grain size. The RE oxides can act as grain growth inhibitors for ZnO grains during sintering [28,30,31,42,43,72]. The decrease of the ZnO grain size with increasing the concentration of the doping rare-earth ions was well documented [54,73,74] and connected with segregation of rare-earth ions at the grain boundaries, which inhibits the growth of ZnO grains.…”

Section: Morphological Characterizationmentioning

confidence: 98%

“…Various ZnO materials doped with ytterbium ions were previously developed and studied, i.e., quantum dots [21], nanomaterials [22][23][24][25][26][27][28][29][30][31], films [33][34][35][36][37][38][39][40][41][42][43], microspheres [44] and ion implanted single crystals [45,46].…”

Section: Introductionmentioning

confidence: 99%

“…The authors of all these studies mentioned that an addition of ytterbium ions modifies the structure, texture and properties of ZnO materials. In a series of publications [24,25,[32][33][34]39,41,[43][44][45], the authors did not register any crystalline phase other than ZnO by the X-ray diffraction (XRD) analysis, which led them to conclusion that Yb 3+ ions enter into the ZnO lattice. Any amount of Yb in other phases was claimed to be below the detection limit of the XRD analysis [41].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

ZnO – Yb2O3 composite optical ceramics: Synthesis, structure and spectral-luminescent properties

Gorokhova

Дымшиц

Venevtsev

et al. 2022

Journal of the European Ceramic Society

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Section: Morphological Characterizationmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

ZnO – Yb2O3 composite optical ceramics: Synthesis, structure and spectral-luminescent properties

Gorokhova

Дымшиц

Venevtsev

et al. 2022

Journal of the European Ceramic Society

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“…ZN Kayani et al demonstrated a good antibacterial activity of Ce-doped ZnO thin films [ 51 ]. On the other hand, the Yb ion displays the highest electron affinity [ 52 ]. When mixed with other RE elements such Eu 3+ or Er 3+ , Yb 3+ is employed as a sensitizer and hence improve the up-conversion (UC) luminescence productivity of ZnO [ 53 ].…”

Section: Introductionmentioning

confidence: 99%

In Vitro Antimicrobial and Anticancer Peculiarities of Ytterbium and Cerium Co-Doped Zinc Oxide Nanoparticles

Hannachi

Khan

Slimani

et al. 2022

Biology

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Zinc oxide nanoparticles (ZnO NPs) are a promising platform for their use in biomedical research, especially given their anticancer and antimicrobial activities. This work presents the synthesis of ZnO NPs doped with different amounts of rare-earth ions of ytterbium (Yb) and cerium (Ce) and the assessment of their anticancer and antimicrobial activities. The structural investigations indicated a hexagonal wurtzite structure for all prepared NPs. The particle size was reduced by raising the amount of Ce and Yb in ZnO. The anticancer capabilities of the samples were examined by the cell viability MTT assay. Post 48-h treatment showed a reduction in the cancer cell viability, which was x = 0.00 (68%), x = 0.01 (58.70%), x = 0.03 (80.94%) and x = 0.05 (64.91%), respectively. We found that samples doped with x = 0.01 and x = 0.05 of Yb and Ce showed a better inhibitory effect on HCT-116 cancer cells than unadded ZnO (x = 0.00). The IC50 for HCT-116 cells of Ce and Yb co-doped ZnO nanoparticles was calculated and the IC50 values were x = 0.01 (3.50 µg/mL), x = 0.05 (8.25 µg/mL), x = 0.00 (11.75 µg/mL), and x = 0.03 (21.50 µg/mL). The treatment-doped ZnO NPs caused apoptotic cell death in the HCT-116 cells. The nanoparticles showed inhibitory action on both C. albicans and E. coli. It can be concluded that doping ZnO NPs with Yb and Ce improves their apoptotic effects on cancer and microbial cells.

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“…In another study (Heng et al 2017), he found that the ultra violet emission of the sputtered ZnO was increased 100 times after introducing 5. at% of Yb. A recent systematic study conducted by López-Mena et al (López-Mena et al 2020) investigated the effect of ytterbium doping on the structural, morphological and optical properties of ZnO thin lms, their ndings suggest that Yb-doped ZnO thin lms are suitable for optoelectronic devices, solar cells. Given the large number of experimental studies on Yb-doped ZnO, there is still very limited theoretical research on the structural and optical properties of Yb-doped ZnO.…”

Section: Introductionmentioning

confidence: 99%

Effect of Yb Concentration on the Structural, Magnetic and Optoelectronic Properties of Yb Doped ZnO: First Principles Calculation

Achehboune

Khenfouch

Boukhoubza

et al. 2021

Preprint

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Density functional theory-based investigation of the electronic, magnetic, and optical characteristics in pure and ytterbium (Yb) doped ZnO has been carried out by the plane-wave pseudopotential technique with generalized gradient approximation. The calculated lattice parameters and band gap of pure ZnO are in good agreement with the experimental results. The energy band-gap increases with the increase of Yb concentration. The Fermi level moves upward into the conduction band after doping with Yb, which shows the properties of an n-type se miconductor. New defects were created in the band-gap near the conduction band attributed to the Yb-4f states. The magnetic properties of ZnO were found to be affected by Yb doping; ferromagnetic property was observed for 4.17% Yb due to spin polarization of Yb-4f electrons. The calculated optical properties imply that Yb doped causes a blue shift of the absorption peaks, significantly enhances the absorption of the visible light, and the blue shift of the reflectivity spectrum was observed. Besides, a better transmittance of approximately 88% was observed for 4.17% Yb doped ZnO system. The refractive index and the extinction coefficient were observed to decrease as the Yb dopant concentration increased. As a result, we believe that our findings will be useful in understanding the doping impact in ZnO and will motivate further theoretical research.

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The effect of Yb doping on ZnO thin films obtained via a low-temperature spin coating method

Cited by 12 publications

References 65 publications

ZnO – Yb2O3 composite optical ceramics: Synthesis, structure and spectral-luminescent properties

ZnO – Yb2O3 composite optical ceramics: Synthesis, structure and spectral-luminescent properties

In Vitro Antimicrobial and Anticancer Peculiarities of Ytterbium and Cerium Co-Doped Zinc Oxide Nanoparticles

Effect of Yb Concentration on the Structural, Magnetic and Optoelectronic Properties of Yb Doped ZnO: First Principles Calculation

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