Synthesis of Metal Oxide-Based Nanocomposites and Multicomponent Compounds Using Layer-by-Layer Method and Prospects for Their Application

Cho, B. K.; Gulina, L. B.; Tolstoy, Valeri P.

doi:10.11113/jt.v75.5165

Cited by 8 publications

(5 citation statements)

References 41 publications

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“…The weak adsorption ability of Cu + is also reported by Lindroos et al in the SILAR technique during the preparation of CuSnS 2 films . Also, during successive addition of the second cation (Bi 3+ ), the oxidation state of Cu + is altered during the reaction, leading to so-called redox SILAR depositions − and giving rise to the CuBiS 2 phase. The driving force for the formation of this desired stable CuBiS 2 phase is its low solubility in water over all other binary or precursor phases .…”

Section: Results and Discussionmentioning

confidence: 57%

CuBiS₂ Ternary Quantum Dots: Tuning the Deposition Technique for Enhanced Photovoltaic Performance

Akhil

Balakrishna

2023

ACS Appl. Energy Mater.

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This research focuses on the generation of cleaner and more affordable energy using CuBiS 2 photoabsorbers in solar cells. One major obstacle impeding advancement of cell efficiency is the low quantum dot (QD) loading volume. The degree of QDs loaded onto the surfaces of the TiO 2 has an impact on the device's capacity to capture light and the interfacial charge recombination, and it controls the performance of QD solar cells. The cells are made using the SILAR process, making the device protocol extremely feasible, practically robust, and reliable. A detailed investigation on material characteristics as well as deposition methods paved the way for the highest PCE (power conversion efficiency) obtained for CuBiS 2 QDs so far. The importance of Cu compounds (CuBiS 2 ) in tuning the PCE is also demonstrated. Moreover, a series of inexpensive inorganic and solid-state hole transport materials are investigated to address the issues with liquid electrolyte in these devices. Charge carrier dynamics across the interface between the photoabsorber and the hole transport layer are studied in detail using electron impedance spectroscopy. An investigation on the relationships between processing, structure, properties, and performances allowed a precise analysis of the device.

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Section: Results and Discussionmentioning

confidence: 57%

CuBiS₂ Ternary Quantum Dots: Tuning the Deposition Technique for Enhanced Photovoltaic Performance

Akhil

Balakrishna

2023

ACS Appl. Energy Mater.

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“…[ 73 ] For instance, a Fe[Co(CN) 6 ] layer can be used as an electrocatalyst on the cathode and Ag‐Pb alloys. Electrocatalysts based on metal oxides, hydroxides and peroxides, among them are NiOOH, La x NbO y , CeO 2 + x , AgMnO 2 , Bi x VO 4 , can be synthesized via the Successive Ionic Layer Deposition (SILD) [ 74 ] or Gas‐Solution Interface Technique (GSIT). [ 75 ] Requirements for nanomaterials are earth abundant, low cost, non‐toxic, chemically‐stable, selective, high surface area, high porosity, support effective mass transport and desorption of reactants, intermediates and products, high catalytic reactions rates to enable the efficient generation, transport and utilization of electrons and protons.…”

Section: Materials Requirements For H2o2 Fcmentioning

confidence: 99%

Synergistic Integration of Hydrogen Peroxide Powered Valveless Micropumps and Membraneless Fuel Cells: A Comprehensive Review

Mujtaba,

Kuzin,

Chen

et al. 2024

Adv Materials Technologies

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Catalytic valveless micropumps, and membraneless fuel cells are the class of devices that utilize the decomposition of hydrogen peroxide (H2O2) into water and oxygen. Nonetheless, a significant obstacle that endures within the discipline pertains to the pragmatic open circuit potential (OCP) of hydrogen peroxide FCs (H2O2 FCs), which fails to meet the theoretical OCP. Additionally, bubble formation significantly contributes to this disparity, as it disrupts the electrolyte's uniformity and interferes with reaction dynamics. In addition, issues such as catalyst degradation and poor kinetics can impact the overall cell efficiency. The development of high‐performance H2O2‐FCs necessitates the incorporation of selective electrocatalysts with a high surface area. However, porous micro‐structures of the electrode impedes the transport of fuel and the removal of reaction byproducts, thereby hindering the attainment of technologically significant rates. To address these challenges, including bubble formation, the review highlights the potential of integrating electrokinetic and bubble‐driven micropumps. An alternative approach involves the spatiotemporal separation of fuel and oxidizer through the use of laminar flow‐based fuel cell (LFFC). The present review addresses multifaceted challenges of H2O2‐powered FCs, and proposes integration of electrokinetic and bubble‐driven micropumps, emphasizing the critical role of bubble management in improving H2O2 FC performance.

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“…[33] In some instances though, the oxidation state of the precursors (either one of them or both) is altered during the reaction, obtaining the so-called redox SILAR depositions. [33,62,63] Regardless, the deposition happens in all cases due to the low solubility of the target phase.…”

Section: Adsorption: a Key Concept In Silarmentioning

confidence: 99%

SILAR Deposition of Metal Oxide Nanostructured Films

Ratnayake

Ren

Colusso

et al. 2021

Small

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Methods for the fabrication of thin films with well controlled structure and properties are of great importance for the development of functional devices for a large range of applications. SILAR, the acronym for Successive Ionic Layer Adsorption and Reaction, is an evolution and combination of two other deposition methods, the Atomic Layer Deposition and Chemical Bath Deposition. Due to a relative simplicity and low cost, this method has gained increasing interest in the scientific community. There are, however, several aspects related to the influence of the many parameters involved, which deserve further deepening. In this review article, the basis of the method, its application to the fabrication of thin films, the importance of experimental parameters, and some recent advances in the application of oxide films are reviewed. At first the fundamental theoretical bases and experimental concepts of SILAR are discussed. Then, the fabrication of chalcogenides and metal oxides is reviewed, with special emphasis to metal oxides, trying to extract general information on the effect of experimental parameters on structural, morphological and functional properties. Finally, recent advances in the application of oxide films prepared by SILAR are described, focusing on supercapacitors, transparent electrodes, solar cells, and photoelectrochemical devices.

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Synthesis of Metal Oxide-Based Nanocomposites and Multicomponent Compounds Using Layer-by-Layer Method and Prospects for Their Application

Cited by 8 publications

References 41 publications

CuBiS₂ Ternary Quantum Dots: Tuning the Deposition Technique for Enhanced Photovoltaic Performance

CuBiS₂ Ternary Quantum Dots: Tuning the Deposition Technique for Enhanced Photovoltaic Performance

Synergistic Integration of Hydrogen Peroxide Powered Valveless Micropumps and Membraneless Fuel Cells: A Comprehensive Review

SILAR Deposition of Metal Oxide Nanostructured Films

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Synthesis of Metal Oxide-Based Nanocomposites and Multicomponent Compounds Using Layer-by-Layer Method and Prospects for Their Application

Cited by 8 publications

References 41 publications

CuBiS2 Ternary Quantum Dots: Tuning the Deposition Technique for Enhanced Photovoltaic Performance

CuBiS2 Ternary Quantum Dots: Tuning the Deposition Technique for Enhanced Photovoltaic Performance

Synergistic Integration of Hydrogen Peroxide Powered Valveless Micropumps and Membraneless Fuel Cells: A Comprehensive Review

SILAR Deposition of Metal Oxide Nanostructured Films

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Product

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CuBiS₂ Ternary Quantum Dots: Tuning the Deposition Technique for Enhanced Photovoltaic Performance

CuBiS₂ Ternary Quantum Dots: Tuning the Deposition Technique for Enhanced Photovoltaic Performance