Photoassisted Electrodeposition of a Copper(I) Oxide Film

Kim, Seunghun; Kim, Yongkuk; Jung, Jaegoo; Chae, Won Seok

doi:10.2320/matertrans.m2014391

Cited by 5 publications

(4 citation statements)

References 35 publications

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“…The diffraction rings marked with red, yellow, green, and blue dashed lines correspond to the (111), (200), (220), and (311) crystal faces of Cu 2 O, respectively. The result was consistent with its XRD pattern (Figure b) according to the Joint Committee on Powder Diffraction Standards (JCPDS) PDF#05-0667 . Furthermore, high-resolution transmission electron microscopy (HRTEM) image of a single Cu 2 O QW is illustrated in Figure c.…”

Section: Resultssupporting

confidence: 81%

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Synthesis Strategy of Metal Oxide Quantum Wires via a Nanoparticle-Induced Graphene Oxide Rolling Procedure

Zhu

Guo

et al. 2021

Inorg. Chem.

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The efficient synthesis of quantum materials is becoming a research hotspot as it determines their successful application in the fields of biomedicine, illumination, energy, sensors, information, and communication. Among the quantum materials, it is still a challenge to synthesize quantum wires (QWs) with surfactants due to the inevitable radial growth of QWs in the soft template method. In this paper, amphipathic graphene oxide (GO) was adopted as a macromolecular surfactant to limit the radial growth instead of the commonly used surfactant. GO could roll up under its electrostatic interaction with a cuprous oxide (Cu 2 O) quantum dot (QD) and then form a tubular template for the growth of the Cu 2 O QW, which was named herein as the nanoparticle-induced graphene oxide rolling (NIGOR) procedure. The NIGOR procedure was confirmed by the molecular dynamics results by simulating systems consisting of GO and Cu 2 O nanoparticles. An intermediate with a necklace morphology corresponding to the simulation result was also observed experimentally during the formation of the QW. Meanwhile, the formation mechanism of the QW was demonstrated rationally. Furthermore, increasing the dosage of the reactant, reaction time, and temperature altered the diameter of the QW from 2 to 4 nm and also changed the morphology of the final products from a QD to a QW and then to a bundle of QWs. This was attributed to the aggregation of materials for the lowest surface energy in the system. Additionally, the universality of NIGOR was manifested via the synthesis of other metal oxides as well. The NIGOR strategy provided an alternative, convenient, and mass production method for synthesizing QWs.

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Section: Resultssupporting

confidence: 81%

“…The result was consistent with its XRD pattern (Figure 3b) according to the Joint Committee on Powder Diffraction Standards (JCPDS) PDF#05-0667. 54 the unavoidable byproduct in the synthesis. Further, Figure S3b shows the Cu + LMM Auger peak located at 570 eV, which confirmed that the as-prepared QWs consisted of Cu 2 O.…”

Section: ■ Results and Discussionmentioning

confidence: 95%

Synthesis Strategy of Metal Oxide Quantum Wires via a Nanoparticle-Induced Graphene Oxide Rolling Procedure

Zhu

Guo

et al. 2021

Inorg. Chem.

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“…Many studies reported several approaches to synthesize CZTS thin films including chemical and physical processes [12][13][14]. Due to many advantages of the chemical processes (non-vacuum) over the physical processes (vacuum)such as simplicity, scalability, cost effectiveness, low-temperature deposition capacity, and manufacturability, electrodeposition has been widely used to prepare photovoltaic CZTS thin films [15][16][17][18][19][20]. The used electrodeposition techniques include (i) sequential electrodeposition of metallic stacked thin layers on copper (Cu), zinc (Zn), and tin (Sn) followed by sulfur (S) diffusion, (ii) simultaneous electrodeposition of metallic Cu, Zn, and Sn thin film followed by S diffusion and (iii) single step electrodeposition of CZTS thin film followed by S diffusion [21][22][23].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Pulsed current co-electrodeposition of kesterite Cu2ZnSnS4 absorber material on fluorinated tin oxide (FTO) glass substrate

Termsaithong

Munprom

Shah

et al. 2018

Surface and Coatings Technology

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The film of kesterite Cu2ZnSnS4 (CZTS) was prepared on a fluorinated tin oxide (FTO) substrate by a galvanostatically pulsed electrodeposition. The effect of duty cycles on electrodeposition was investigated at 33%, 50%, and 67% duty cycle. For the characterization, the prepared films were analyzed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), x-ray spectroscopy (XRD), UV-vis spectroscopy, Raman spectroscopy, and an atomic emission elemental analyzer. According to the experiments, surface morphologies of the CZT precursor appear to be uniform with fewer pores. After sulfurization, the morphologies of CZTS film become more uniform. When considering duty cycles, a higher duty cycle resulted in the surface being denser, more compact, more uniform, and smoother. Based upon the XRD and EDS, the film's composition consists of copper, zinc, tin, and sulfur. The compound formulae is also proved to be copper zinc tin sulfide.

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“…PVP acts as a capping surfactant reagent, which is adsorbed differently on various crystal surfaces and leads to a competitive growth between different copper crystal facets, and results in shape variation of the final crystal shape. According to the literature [31,[34][35][36][37], some of possible reactions in an aqueous solution of copper during the electrodeposition are as follows:…”

Section: Introductionmentioning

confidence: 99%

Controlling Morphology and Wettability of Intrinsically Superhydrophobic Copper-Based Surfaces by Electrodeposition

et al. 2022

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Electrodeposition is an effective and scalable method to grow desired structures on solid surfaces, for example, to impart superhydrophobicity. Specifically, copper microcrystals can be grown using electrodeposition by controlling deposition parameters such as the electrolyte and its acidity, the bath temperature, and the potential modulation. The aim of the present work is the fabrication of superhydrophobic copper-based surfaces by electrodeposition, investigating both surface properties and assessing durability under conditions relevant to real applications. Accordingly, copper-based layers were fabricated on Au/Si(100) from Cu(BF4)2 precursor by electrodeposition, using cyclic voltammetry and square-pulse voltage approaches. By increasing the bath temperature from 22 °C to 60 °C, the growth of various structures, including micrometric polyhedral crystals and hierarchical structures, ranging from small grains to pine-needle-like dendrite leaves, has been demonstrated. Without any further physical and/or chemical modification, samples fabricated with square-pulse voltage at 60 °C are superhydrophobic, with a contact angle of 160° and a sliding angle of 15°. In addition, samples fabricated from fluoroborate precursor are carefully compared to those fabricated from sulphate precursor to compare chemical composition, surface morphology, wetting properties, and durability under UV exposure and hard abrasion. Results show that although electrodeposition from fluoroborate precursor can provide dendritic microstructures with good superhydrophobicity properties, surfaces possess lower durability and stability compared to those fabricated from the sulphate precursor. Hence, from an application point of view, fabrication of copper superhydrophobic surfaces from sulphate precursor is more recommended.

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Photoassisted Electrodeposition of a Copper(I) Oxide Film

Cited by 5 publications

References 35 publications

Synthesis Strategy of Metal Oxide Quantum Wires via a Nanoparticle-Induced Graphene Oxide Rolling Procedure

Synthesis Strategy of Metal Oxide Quantum Wires via a Nanoparticle-Induced Graphene Oxide Rolling Procedure

Pulsed current co-electrodeposition of kesterite Cu2ZnSnS4 absorber material on fluorinated tin oxide (FTO) glass substrate

Controlling Morphology and Wettability of Intrinsically Superhydrophobic Copper-Based Surfaces by Electrodeposition

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