Hydrothermal synthesis of ZnO nanowires on rf sputtered Ga and Al co-doped ZnO thin films for solar cell application

Muchuweni, Edigar; Sathiaraj, T.S.; Nyakotyo, H.

doi:10.1016/j.jallcom.2017.05.317

Cited by 43 publications

(19 citation statements)

References 54 publications

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“…A few 243 interference fringes can be observed in the trans-244 mittance spectra, indicating weak surface roughness. 45 The optical bandgap energy, E g ,o f the materials was evaluated using the Tauc relation, 22,46 aht…”

Section: Sample Preparationmentioning

confidence: 99%

Improved Cu2O/AZO Heterojunction by Inserting a Thin ZnO Interlayer Grown by Pulsed Laser Deposition

Boughelout

Macaluso

Crupi

et al. 2019

Journal of Elec Materi

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Section: Sample Preparationmentioning

confidence: 99%

Improved Cu2O/AZO Heterojunction by Inserting a Thin ZnO Interlayer Grown by Pulsed Laser Deposition

Boughelout

Macaluso

Crupi

et al. 2019

Journal of Elec Materi

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“…Figure shows the XRD patterns for the L 9 orthogonal array for AGZO films that are grown on PET substrates. The AGZO films exhibit a (0 0 2) diffraction peak at 2 θ ≈ 34.34°, which indicates that the films are polycrystalline with a hexagonal wurtzite crystal structure and a preferred orientation with the c ‐axis perpendicular to the substrate . The AGZO thin film that is deposited using a rf power of 40 W (Nos.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Al and Ga Co‐Doped ZnO Films on Flexible Substrates and Control Charts Monitor Deposition Process

Lin

2019

Physica Status Solidi (a)

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doped zinc oxide (AGZO) films are deposited onto flexible poly (ethylene terephthalate) (PET) substrates by radio frequency magnetron sputtering. Before the AGZO film coating, oxygen plasma etching is used to modify the surface of the PET substrate. The results show that the substrate is very hydrophilic. This study determines the effect of the deposition parameters on the structural, morphological, and optoelectronic performances of AGZO films. Based on the gray Taguchi analysis for the AGZO film coatings show that the electrical resistivity is decreased to 6.30 Â 10 À3 Ω cm and the optical transmittance is increased to 81.0%. The XRD diffraction and TEM images show that the AGZO films exhibit a hexagonal ZnO wurtzite structure. A comparison of the PET substrates that do or do not undergo plasma pretreatment, shows that the AGZO films coating there is a 4.7% improvement in elastic recovery, a 13.65% improvement in hardness H, a 1.69% improvement in the elastic modulus E, a 12.15% improvement in in H/E, and a 42.06% improvement in H 3 /E 2 . Shewhart control charts are used to monitor the deposition processes for the AGZO films. Finding shown that the deposition parameters for the films and process performance are in control and stable.

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“…Nonetheless, the large-scale fabrication of ZnO-NWs is hindered by a number of factors. 20 Hydrothermal synthesis is a straight forward scalable approach, which can be performed under atmospheric pressure at low temperatures (<100 C) using a wide variety of substrates; 21 however, it is inapplicable to bare silicon substrates due to high internal stress caused by lattice mismatch between ZnO-NWs and the substrate as well as a large difference in the coe cient of thermal expansion. 21,22 The sputter deposition of a ZnO seed layer on the surface of silicon substrate has been shown to reduce lattice mismatch and alignment the nanowires to improve array density.…”

Section: Introductionmentioning

confidence: 99%

“…20 Hydrothermal synthesis is a straight forward scalable approach, which can be performed under atmospheric pressure at low temperatures (<100 C) using a wide variety of substrates; 21 however, it is inapplicable to bare silicon substrates due to high internal stress caused by lattice mismatch between ZnO-NWs and the substrate as well as a large difference in the coe cient of thermal expansion. 21,22 The sputter deposition of a ZnO seed layer on the surface of silicon substrate has been shown to reduce lattice mismatch and alignment the nanowires to improve array density. 17,23 A thin buffer layer on the surface of silicon has also been shown to overcome the effects of lattice mismatch, resulting in a sound electrical and thermal interface between the vertically-aligned ZnO-NWs and the substrate.…”

Section: Introductionmentioning

confidence: 99%

ZnO-NWs/Metallic Glass Nanotube Hybrid Arrays: Fabrication and Material Characterization

Weldegrum

Singh

Huang

et al. 2020

Preprint

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In this work, we fabricated first-ever nanohybrid ZnO nanowires (ZnO-NWs)/Metallic Nanotube Arrays (MeNTA) structure for the large-scale fabrication of highly dense laterally and vertical aligned ZnO-NWs. To prepare heterogeneous surface MeNTA by using sputter-deposition of different metallic glass Zr55Cu30Al10Ni5), Cu47Zr42Al7Ti4, Pd72Cu12Si16, W50Ni25B25 and Ni54B0.3Si36Cr2.7Fe7) over on contact-hole arrays created by a photoresist template with 650 nm height and various diameter (2, 10 and 20 µm). A ZnO seed layer is deposited by sputtering method on MeNTA to provide the nucleation sites to grow the nanowires inside the MeNTA. To perform the material analysis like surface morphology, crystal structural, and optical properties were characterized by using scanning electron microscopy (SEM), X-ray diffraction (XRD), and photoluminescence (PL), respectively. Our results confirm that, the nanowires are single crystal with hexagonal wurtzite structure presenting strong UV emissions can be used in optoelectronics, sensors, piezoelectric-nanogenerator, solar cells and battery applications in near future.

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Hydrothermal synthesis of ZnO nanowires on rf sputtered Ga and Al co-doped ZnO thin films for solar cell application

Cited by 43 publications

References 54 publications

Improved Cu2O/AZO Heterojunction by Inserting a Thin ZnO Interlayer Grown by Pulsed Laser Deposition

Improved Cu2O/AZO Heterojunction by Inserting a Thin ZnO Interlayer Grown by Pulsed Laser Deposition

Fabrication of Al and Ga Co‐Doped ZnO Films on Flexible Substrates and Control Charts Monitor Deposition Process

ZnO-NWs/Metallic Glass Nanotube Hybrid Arrays: Fabrication and Material Characterization

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