Development of system to grow ZnO films by plasma assisted reactive evaporation with improved thickness homogeneity for using in solar cells

Gordillo, G.; Peña, J.C.

doi:10.1016/j.jmrt.2022.05.101

Cited by 4 publications

(3 citation statements)

References 36 publications

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“…The thin films were sintered at 500 °C. The ZnO thin films were deposited by plasma-assisted reactive evaporation technique as previously reported . The structural properties of the thin films were determined by X-ray diffraction measurements and scanning electron microscopy (SEM) assays.…”

Section: Methodsmentioning

confidence: 99%

Antimicrobial Activity against Fusarium oxysporum f. sp. dianthi of TiO₂/ZnO Thin Films under UV Irradiation: Experimental and Theoretical Study

Quiñones,

Posada,

Hormiga

et al. 2024

ACS Omega

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We deposited bare TiO 2 and TiO 2 /ZnO thin films to study their antimicrobial capacity against Fusarium oxysporum f. sp. dianthi. The deposit of TiO 2 was performed by spin coating and the ZnO thin films were deposited onto the TiO 2 surface by plasma-assisted reactive evaporation technique. The characterization of the compounds was carried out by scanning electron microscopy (SEM) and powder X-ray diffraction techniques. Furthermore, density functional theory (DFT) and time-dependent DFT (TDDFT) calculations were performed to support the observed experimental results. Thus, the removal of methylene blue (MB) by adsorption and posterior photocatalytic degradation was studied. Adsorption kinetic results showed that TiO 2 /ZnO thin films were more efficient in MB removal than bare TiO 2 thin films, and the pseudo-second-order model was suitable to describe the experimental results for TiO 2 /ZnO (q e = 12.9 mg/g; k 2 = 0.14 g/ mg/min) and TiO 2 thin films (q e = 12.0 mg/g; k 2 = 0.13 g/mg/min). Photocatalytic results under UV irradiation showed that TiO 2 thin films reached 10.9% of MB photodegradation (k = 1.0 × 10 −3 min −1 ), whereas TiO 2 /ZnO thin films reached 20.6% of MB photodegradation (k = 3.9 × 10 −3 min −1 ). Both thin films reduced the photocatalytic efficiency by less than 3% after 4 photocatalytic tests. DFT study showed that the highest occupied molecular orbital−lowest unoccupied molecular orbital (HOMO−LUMO) energy gap decreases for the mixed nanoparticle system, showing its increased reactivity. Furthermore, the chemical hardness shows a lower value for the mixed system, whereas the electrophilicity index shows the biggest value, supporting the larger reactivity for the mixed nanoparticle system. Finally, the antimicrobial activity against F. oxysporum f. sp. dianthi showed that bare TiO 2 reached a growth reduction of 68% while TiO 2 /ZnO reached a growth reduction of 90% after 250 min of UV irradiation.

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Section: Methodsmentioning

confidence: 99%

Antimicrobial Activity against Fusarium oxysporum f. sp. dianthi of TiO₂/ZnO Thin Films under UV Irradiation: Experimental and Theoretical Study

Quiñones,

Posada,

Hormiga

et al. 2024

ACS Omega

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“…However, anchoring the semiconductor to a surface (e.g., thin films, coatings) can solve these problems. The semiconductors can be deposited as thin films by various methods, namely: (i) physical (e.g., pulsed-laser deposition [ 9 ], sputtering [ 10 ], reactive evaporation [ 11 ], thermal evaporation [ 12 ] and, atomic layer deposition [ 13 ], ultrasonic and microwave-assisted methods [ 14 ]); (ii) chemical (e.g., electrochemical [ 15 ], chemical vapor deposition [ 16 ], SILAR technique [ 17 ], chemical bath deposition (CBD) [ 18 ], and sol-gel method [ 19 ]).…”

Section: Introductionmentioning

confidence: 99%

Improvement of the photocatalytic activity of ZnO thin films doped with manganese

Vallejo,

Cantillo,

Díaz-Uribe

2023

Heliyon

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“…Using this approach, dense and smooth thin films and nanostructured hybrid materials of metal chalcogenides like CdS [15][16][17], TiO 2 [18][19][20], and ZnO [21][22][23] were fabricated through organic templates. Among them, the transparent semiconductor ZnO is of particular interest as it covers a vast range of applications from optoelectronics [24,25] to gas sensors [26,27] and lasing devices [28,29], etc.…”

Section: Introductionmentioning

confidence: 99%

In Situ Ultra-Small- and Small-Angle X-ray Scattering Study of ZnO Nanoparticle Formation and Growth through Chemical Bath Deposition in the Presence of Polyvinylpyrrolidone

et al. 2023

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ZnO inverse opals combine the outstanding properties of the semiconductor ZnO with the high surface area of the open-porous framework, making them valuable photonic and catalysis support materials. One route to produce inverse opals is to mineralize the voids of close-packed polymer nanoparticle templates by chemical bath deposition (CBD) using a ZnO precursor solution, followed by template removal. To ensure synthesis control, the formation and growth of ZnO nanoparticles in a precursor solution containing the organic additive polyvinylpyrrolidone (PVP) was investigated by in situ ultra-small- and small-angle X-ray scattering (USAXS/SAXS). Before that, we studied the precursor solution by in-house SAXS at T = 25 °C, revealing the presence of a PVP network with semiflexible chain behavior. Heating the precursor solution to 58 °C or 63 °C initiates the formation of small ZnO nanoparticles that cluster together, as shown by complementary transmission electron microscopy images (TEM) taken after synthesis. The underlying kinetics of this process could be deciphered by quantitatively analyzing the USAXS/SAXS data considering the scattering contributions of particles, clusters, and the PVP network. A nearly quantitative description of both the nucleation and growth period could be achieved using the two-step Finke–Watzky model with slow, continuous nucleation followed by autocatalytic growth.

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Development of system to grow ZnO films by plasma assisted reactive evaporation with improved thickness homogeneity for using in solar cells

Cited by 4 publications

References 36 publications

Antimicrobial Activity against Fusarium oxysporum f. sp. dianthi of TiO₂/ZnO Thin Films under UV Irradiation: Experimental and Theoretical Study

Antimicrobial Activity against Fusarium oxysporum f. sp. dianthi of TiO₂/ZnO Thin Films under UV Irradiation: Experimental and Theoretical Study

Improvement of the photocatalytic activity of ZnO thin films doped with manganese

In Situ Ultra-Small- and Small-Angle X-ray Scattering Study of ZnO Nanoparticle Formation and Growth through Chemical Bath Deposition in the Presence of Polyvinylpyrrolidone

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Development of system to grow ZnO films by plasma assisted reactive evaporation with improved thickness homogeneity for using in solar cells

Cited by 4 publications

References 36 publications

Antimicrobial Activity against Fusarium oxysporum f. sp. dianthi of TiO2/ZnO Thin Films under UV Irradiation: Experimental and Theoretical Study

Antimicrobial Activity against Fusarium oxysporum f. sp. dianthi of TiO2/ZnO Thin Films under UV Irradiation: Experimental and Theoretical Study

Improvement of the photocatalytic activity of ZnO thin films doped with manganese

In Situ Ultra-Small- and Small-Angle X-ray Scattering Study of ZnO Nanoparticle Formation and Growth through Chemical Bath Deposition in the Presence of Polyvinylpyrrolidone

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Product

Resources

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Antimicrobial Activity against Fusarium oxysporum f. sp. dianthi of TiO₂/ZnO Thin Films under UV Irradiation: Experimental and Theoretical Study

Antimicrobial Activity against Fusarium oxysporum f. sp. dianthi of TiO₂/ZnO Thin Films under UV Irradiation: Experimental and Theoretical Study