Physical properties of indium zinc oxide and aluminium zinc oxide thin films deposited by radio-frequency magnetron sputtering

Vasile, Nicolae-Tiberius; Iftimie, Sorina; Acsente, T.; Locovei, Claudiu; Călugăr, Alina Irina; Radu, A.; Ion, L.; Antohe, Vlad‐Andrei; Manica, Dumitru; Toma, Ovidiu; Dinescu, Gheorghe; Antohe, S.

doi:10.1088/2053-1591/ab688d

Cited by 8 publications

(8 citation statements)

References 43 publications

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“…Finally, the strong signal of the Au (111) diffraction plane from Figure 5c is related to the Au-coated Si substrate employed in the preparation of CdTe by ECD. The XRD data recorded in symmetric theta-theta geometry around the CdTe (111) crystalline plane are presented in Figure 6 together with the theoretical curves obtained by fitting the experimental data with a Voigt profile [13,40,41]. The residual of the fit procedure is shown at the bottom of each graph.…”

Section: Structural Characterizationmentioning

confidence: 99%

Effect of the Cadmium Telluride Deposition Method on the Covering Degree of Electrodes Based on Copper Nanowire Arrays

et al. 2022

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In this work, we report the preparation of nanostructured electrodes based on dense arrays of vertically-aligned copper (Cu) nanowires (NWs) to be subsequently covered by cadmium telluride (CdTe) thin films, with great potential to be used within “substrate”-type photovoltaic cells based on AII-BVI heterojunctions. In particular, the multi-step preparation protocol presented here involves an electrochemical synthesis procedure within a supported anodic aluminum oxide (AAO) nanoporous template for first generating a homogeneous array of vertically-aligned Cu NWs, which are then further embedded within a compact CdTe thin film. In a second stage, we tested three deposition methods (vacuum thermal evaporation, VTE; radio-frequency magnetron sputtering, RF-MS; and electrochemical deposition, ECD) for use in obtaining CdTe layers potentially able to consistently penetrate the previously prepared Cu NWs array. A comparative analysis was performed to critically evaluate the morphological, optical, and structural properties of the deposited CdTe films. The presented results demonstrate that under optimized processing conditions, the ECD approach could potentially allow the cost-effective fabrication of absorber layer/collecting electrode CdTe/Cu nanostructured interfaces that could improve charge collection mechanisms, which in turn could allow the fabrication of more efficient solar cells based on AII-BVI semiconducting compounds.

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Section: Structural Characterizationmentioning

confidence: 99%

Effect of the Cadmium Telluride Deposition Method on the Covering Degree of Electrodes Based on Copper Nanowire Arrays

et al. 2022

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“…In a variety of works, the respective concentration or amount of indium is more than 80% in the total concentration of the precursor. In preparation of indium zinc oxide thin films by radio frequency magnetron sputtering, the ratio of In: Zn was kept at 90:10 wt.% [29]. In an attempt to prepare boron-doped indium-boron-zinc-oxide (IBZO) thin films by spin-coating deposition, indium concentration was kept at 70% [30].…”

Section: Precursor Solution Preparationmentioning

confidence: 99%

Solution Combustion Synthesis of Transparent Conducting Thin Films for Sustainable Photovoltaic Applications

et al. 2020

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Sunlight is arguably the most promising continuous and cheap alternative sustainable energy source available at almost all living places of the human world. Photovoltaics (PV) is a process of direct conversion of sunlight into electricity and has become a technology of choice for sustainable production of cleaner and safer energy. The solar cell is the main component of any PV technology and transparent conducting oxides (TCO) comprising wide band gap semiconductors are an essential component of every PV technology. In this research, transparent conducting thin films were prepared by solution combustion synthesis of metal oxide nitrates wherein the use of indium is substituted or reduced. Individual 0.5 M indium, gallium and zinc oxide source solutions were mixed in ratios of 1:9 and 9:1 to obtain precursor solutions. Indium-rich IZO (A1), zinc-rich IZO (B1), gallium-rich GZO (C1) and zinc-rich GZO (D1) thin films were prepared through spin coating deposition. In the case of A1 and B1 thin films, electrical resistivity obtained was 3.4 × 10−3 Ω-cm and 7.9 × 10−3 Ω-cm, respectively. While C1 films remained insulating, D1 films showed an electrical resistivity of 1.3 × 10−2 Ω-cm. The optical transmittance remained more than 80% in visible for all films. Films with necessary transparent conducting properties were applied in an all solution-processed solar cell device and then characterized. The efficiency of 1.66%, 2.17%, and 0.77% was obtained for A1, B1, and D1 TCOs, respectively, while 6.88% was obtained using commercial fluorine doped SnO2: (FTO) TCO. The results are encouraging for the preparation of indium-free TCOs towards solution-processed thin-film photovoltaic devices. It is also observed that better filtration of precursor solutions and improving surface roughness would further reduce sheet resistance and improve solar cell efficiency.

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“…Optical studies of mixed transition-metal oxide films are routinely implemented with UV/VIS/NIR transmission spectrophotometry, which was also reported for IZO films prepared by different routes [ 11 , 17 , 18 ]. The transparency in the VIS range was found to depend on both the In:Zn ratio and the crystallinity.…”

Section: Introductionmentioning

confidence: 99%

“…For crystalline IZO, the transmittance was found to increase with an increasing content of In, reaching values of >95% for the In 0.06 Zn 0.94 O stoichiometry [ 17 ]. For amorphous IZO films with a In:Zn ratio of 5.5:1, prepared by magnetron sputtering without post-deposition heating, the transmittance is <90% [ 18 ]. For the films with a In:Zn ratio of 7:3 prepared by spin coating, the transmittance of 82–85% was found not to depend so much on the annealing temperature, but rather to decrease slightly with the number of deposition layers [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Indium-zinc-oxide thin films produced by low-cost chemical solution deposition: Tuning the microstructure, optical and electrical properties with the processing conditions

Stojanoska,

Okorn,

Kmet

et al. 2023

Heliyon

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Physical properties of indium zinc oxide and aluminium zinc oxide thin films deposited by radio-frequency magnetron sputtering

Cited by 8 publications

References 43 publications

Effect of the Cadmium Telluride Deposition Method on the Covering Degree of Electrodes Based on Copper Nanowire Arrays

Effect of the Cadmium Telluride Deposition Method on the Covering Degree of Electrodes Based on Copper Nanowire Arrays

Solution Combustion Synthesis of Transparent Conducting Thin Films for Sustainable Photovoltaic Applications

Indium-zinc-oxide thin films produced by low-cost chemical solution deposition: Tuning the microstructure, optical and electrical properties with the processing conditions

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