An investigation on CuO thin films grown by ultrasonic spray pyrolysis at different substrate temperatures: Structural, optical and supercapacitor electrode characterizations

Güney, Harun; İskenderoğlu, Demet; Güldüren, Muhammed Emin; Demi̇r, Kübra Çınar; Karadeniz, Sibel Morkoç

doi:10.1016/j.optmat.2022.112869

Cited by 22 publications

(3 citation statements)

References 37 publications

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“…19 In contrast, the CuO characteristic peaks in 40CuO/SiO 2 become sharper, suggesting that the CuO crystal in 40CuO/SiO 2 is bigger or formed more completely. 29 In addition, wide amorphous peaks at 12.25° and 13.25° appear in x CuO/SiO 2 , which are attributed to SiO 2 (JCPDS card no. 51-1381).…”

Section: Resultsmentioning

confidence: 99%

The importance of copper-phyllosilicate formed in CuO/SiO₂ catalysts in the ethynylation of formaldehyde for 1,4-butynediol synthesis

2023

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Section: Resultsmentioning

confidence: 99%

The importance of copper-phyllosilicate formed in CuO/SiO₂ catalysts in the ethynylation of formaldehyde for 1,4-butynediol synthesis

2023

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“…Alternative approaches involve techniques such as chemical vapor deposition [25][26][27] and atomic layer deposition [28][29][30]. CuO thin films can also be grown from liquid phases, employing techniques such as chemical bath deposition [31][32][33], successive ionic layer adsorption and reaction (SILAR) [34][35][36], sol-gel processes (using dip and spin coating) [37][38][39], as well as spray pyrolysis [40][41][42]. This work focuses on hydrothermally grown CuO films.…”

Section: Introductionmentioning

confidence: 99%

Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties

Ozga,

Zielony,

Wierzbicka

et al. 2024

Beilstein J. Nanotechnol.

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This paper presents an investigation into the influence of repeating cycles of hydrothermal growth processes and rapid thermal annealing (HT+RTA) on the properties of CuO thin films. An innovative hydrothermal method ensures homogeneous single-phase films initially. However, their electrical instability and susceptibility to cracking under the influence of temperature have posed a challenge to their utilization in electronic devices. To address this limitation, the HT+RTA procedure has been developed, which effectively eliminated the issue. Comprehensive surface analysis confirmed the procedure’s ability to yield continuous films in which the content of organic compounds responsible for the formation of cracks significantly decreases. Structural analysis underscored the achieved improvements in the crystalline quality of the films. The implementation of the HT+RTA procedure significantly enhances the potential of CuO films for electronic applications. Key findings from Kelvin probe force microscopy analysis demonstrate the possibility of modulating the work function of the material. In addition, scanning capacitance microscopy measurements provided information on the changes in the local carrier concentration with each repetition. These studies indicate the increased usefulness of CuO thin films obtained from the HT+RTA procedure, which expands the possibilities of their applications in electronic devices.

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“…Additionally, CuO is an abundant, inexpensive, electrochemically stable, nontoxic, and easily prepared material. CuO has inspired industry and scientists because of these unique properties compared to existing metal oxides. − Films made from CuO are used in a wide variety of technological fields, including superconductors, lithium-ion batteries, diodes, photodetectors, gas sensors, catalysis, biosensors, and solar cell applications. In addition, there are electrochemical applications in the literature where copper is used as an electrocatalyst for nitrite-to-ammonium conversion and nitrogen-to-ammonium conversion. − CuO films are especially preferred in sensor applications due to their large surface areas.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured CuO Thin-Film-Based Conductometric Sensors for Real-Time Tracking of Sweat Loss

et al. 2023

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Enhanced sweat sensors lead to real-time, sustained, noninvasive tracking of sweat loss, ensure insight into individual health conditions at the molecular level, and have obtained prominent interest for their hopeful implementations in customized health tracking. Metal-oxide-based nanostructured electrochemical amperometric sensing materials are the best selection for continuous sweat monitoring devices owing to their high stability, high-sensing capacity, cost-effectiveness, miniaturization, and wide applicability. In this research, CuO thin films have been fabricated by successive ionic layer adsorption and reaction technique (SILAR) with and without the addition of Lawsonia inermis L. (Henna, (LiL)) leaf extract (C10H6O3, 2-hydroxy-1,4-naphthoquinone) with a high-sensitive and rapid response for sweat solution. Despite the pristine film being responsive to the 65.50 mM sweat solution (S = 2.66), the response characteristic improves to 3.95 for the 1.0% LiL-implemented CuO film. Unmodified, 1.0% LiL and 3.0% LiL-substituted thin-film materials assure considerable linearity with linear regression ranges, R 2, of 0.989, 0.997, and 0.998, respectively. It is noteworthy here that this research aims to determine an enhanced system that could potentially be implemented in real-life sweat-tracking administrations. Real-time sweat loss tracking capabilities of CuO samples was found to be promising. Derived from these outcomes, we concluded that the fabricated nanostructured CuO-based sensing system is a useful application for the continuous observation of sweat loss as a biological argument and compatibility with other microelectronic technologies.

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An investigation on CuO thin films grown by ultrasonic spray pyrolysis at different substrate temperatures: Structural, optical and supercapacitor electrode characterizations

Cited by 22 publications

References 37 publications

The importance of copper-phyllosilicate formed in CuO/SiO₂ catalysts in the ethynylation of formaldehyde for 1,4-butynediol synthesis

The importance of copper-phyllosilicate formed in CuO/SiO₂ catalysts in the ethynylation of formaldehyde for 1,4-butynediol synthesis

Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties

Nanostructured CuO Thin-Film-Based Conductometric Sensors for Real-Time Tracking of Sweat Loss

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An investigation on CuO thin films grown by ultrasonic spray pyrolysis at different substrate temperatures: Structural, optical and supercapacitor electrode characterizations

Cited by 22 publications

References 37 publications

The importance of copper-phyllosilicate formed in CuO/SiO2 catalysts in the ethynylation of formaldehyde for 1,4-butynediol synthesis

The importance of copper-phyllosilicate formed in CuO/SiO2 catalysts in the ethynylation of formaldehyde for 1,4-butynediol synthesis

Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties

Nanostructured CuO Thin-Film-Based Conductometric Sensors for Real-Time Tracking of Sweat Loss

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The importance of copper-phyllosilicate formed in CuO/SiO₂ catalysts in the ethynylation of formaldehyde for 1,4-butynediol synthesis

The importance of copper-phyllosilicate formed in CuO/SiO₂ catalysts in the ethynylation of formaldehyde for 1,4-butynediol synthesis