Tailoring properties of indium tin oxide thin films for their work in both electrochemical and optical label-free sensing systems

Sezemsky, Petr; Burnat, Dariusz; Kratochvíl, Jiří; Wulff, H.; Kruth, Angela; Lechowicz, Katarzyna; Janik, Monika; Bogdanowicz, Robert; Čada, Martin; Hubička, Zdeněk; Niedziałkowski, Paweł; Białobrzeska, Wioleta; Straňák, Vítězslav; Śmietana, Mateusz

doi:10.1016/j.snb.2021.130173

Cited by 29 publications

(18 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the ITO films prepared by e-beam evaporation, the resistivity is 4.4 × 10 −2 Ω•cm and the Ave. T is 32% [54]. These values are significantly improved to 5.8 × 10 −4 Ω•cm and 61% after annealed at 200 • C. For the as-deposited HiPIMS-ITO films, the resistivity is (4.0-6.0) × 10 −3 Ω•cm and the Ave. T is 78-82% [16,55,56]. The resistivity decreases to 6.7 × 10 −4 Ω•cm and the Ave. T is almost unchanged after being annealed at 500 • C. Overall speaking, the ITO films prepared by DCMS and RFMS have the best performance in terms of the electrical and optical properties both at the as-deposited and annealed states; the ITO films prepared by HiPIMS score the secondary level at the as-deposited state but achieves similar level to the DCMS and RFMS after annealed; the ITO films prepared by e-beam evaporation have inferior performance at the as-deposited state, but the resistivity can be improved to the similar level of the DCMS and RFMS while the transmittance remains poor after annealed; the ITO films prepared by the sol-gel method have inferior performance even after annealing.…”

Section: Resultsmentioning

confidence: 99%

Role of Ambient Hydrogen in HiPIMS-ITO Film during Annealing Process in a Large Temperature Range

et al. 2022

View full text Add to dashboard Cite

Indium tin oxide (ITO) thin films were prepared by high power impulse magnetron sputtering (HiPIMS) and annealed in hydrogen-containing forming gas to reduce the film resistivity. The film resistivity reduces by nearly an order of magnitude from 5.6 × 10−3 Ω·cm for the as-deposited film to the lowest value of 6.7 × 10−4 Ω·cm after annealed at 700 °C for 40 min. The role of hydrogen (H) in changing the film properties was explored and discussed in a large temperature range (300–800 °C). When annealed at a low temperature of 300–500 °C, the incorporated H atoms occupied the oxygen sites (Ho), acting as shallow donors that contribute to the increase of carrier concentration, leading to the decrease of film resistivity. When annealed at an intermediate temperature of 500–700 °C, the Ho defects are thermally unstable and decay upon annealing, leading to the reduction of carrier concentration. However, the film resistivity keeps decreasing due to the increase in carrier mobility. Meanwhile, some locally distributed metallic clusters formed due to the reduction effect of H2. When annealed at a high temperature of 700–800 °C, the metal oxide film is severely reduced and transforms to gaseous metal hydride, leading to the dramatic reduction of film thickness and carrier mobility at 750 °C and vanish of the film at 800 °C.

show abstract

Section: Resultsmentioning

confidence: 99%

Role of Ambient Hydrogen in HiPIMS-ITO Film during Annealing Process in a Large Temperature Range

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Metal–organic frameworks (MOFs) are self-assembled single-component crystal complexes with metal ions, organic ligands, and multiple binding sites (N or O atoms) . MOFs can form two- or three-dimensional coordination structures .…”

Section: Introductionmentioning

confidence: 99%

“…12,13 Their physical flexibility, lightsource compatibility, and high photon-transfer efficiency make POFs suitable as optical sensors 14,15 and light-harvesting nanolayers in the visible spectrum. 16,17 Coating photocatalysts on POF offers advantages over catalytic slurries: quantifiable light utilization, short distances between the light source and catalytic interface, and inherent recovery and reuse of the catalysts. 18 Metal−organic frameworks (MOFs) are self-assembled single-component crystal complexes with metal ions, organic ligands, and multiple binding sites (N or O atoms).…”

Section: Introductionmentioning

confidence: 99%

High-Efficiency Photocatalytic H₂O₂ Production in a Dual Optical– and Membrane–Fiber System

Wang

Chen

Lai

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Hydrogen peroxide (H 2 O 2 ) is widely used for industrial applications. Currently, ∼95% of H 2 O 2 production employs the energyand chemical-intensive anthraquinone oxidation process. Photocatalytic H 2 O 2 production is an emerging alternative process. While advanced material discovery has been a primary focus of photocatalysis, breakthroughs in reactor designs capable of supporting novel materials are lacking. To enable low-energy and chemical-free photocatalytic production of H 2 O 2 , we integrated visible-light-emitting diodes (41 mW cm −2 ), optical fibers, and O 2 -delivering hollow-fiber membranes. A stable iron-based metal−organic framework photocatalyst (MIL-101(Fe)) activated by visible light was permanently affixed to the optical fiber, resulting in a uniform and high specific surface area (2650 m 2 g −1 ). The combination of photocatalytic optical fiber and O 2permeable hollow-fiber membranes is a novel architecture for improving light utilization, photocatalyst reuse, and O 2 supply. The H 2 O 2 production rate in pure water was as high as 290 mM h −1 catalyst-g −1 , which is as much as 60-fold greater than the bestreported values using photocatalytic slurries. The efficient delivery of light also achieved a low energy cost for H 2 O 2 production (2.3 kWh kgH 2 O Hd 2 Od 2 −1), and its production rate could be sustained for at least five repeated cycles (2 h per cycle). Energy-efficient H 2 O 2 production without chemical inputs makes the dual-fiber system a more sustainable option for H 2 O 2 production.

show abstract

“…There are several reports on investigating the interface of biomolecules and metal oxides [ 29 , 30 , 31 , 32 , 33 , 34 , 35 ], in particular indium oxide [ 44 , 45 , 46 ] and titania [ 47 , 48 ]. Recently, studies have been performed on surface treatment of ITO using biomolecules for investigating its electrochemical properties and electronic properties for biosensing, including even faster biosensors, to help fight the current pandemic [ 6 , 17 , 49 , 50 ]. However, to completely understand the mechanisms at play for such applications, a detailed, comprehensive computational study of the interface is required.…”

Section: Introductionmentioning

confidence: 99%

The Impact of the Surface Modification on Tin-Doped Indium Oxide Nanocomposite Properties

et al. 2022

View full text Add to dashboard Cite

This review provides an analysis of the theoretical methods to study the effects of surface modification on structural properties of nanostructured indium tin oxide (ITO), mainly by organic compounds. The computational data are compared with experimental data such as X-ray diffraction (XRD), atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDS) data with the focus on optoelectronic and electrocatalytic properties of the surface to investigate potential relations of these properties and applications of ITO in fields such as biosensing and electronic device fabrication. Our analysis shows that the change in optoelectronic properties of the surface is mainly due to functionalizing the surface with organic molecules and that the electrocatalytic properties vary as a function of size.

show abstract

Tailoring properties of indium tin oxide thin films for their work in both electrochemical and optical label-free sensing systems

Cited by 29 publications

References 67 publications

Role of Ambient Hydrogen in HiPIMS-ITO Film during Annealing Process in a Large Temperature Range

Role of Ambient Hydrogen in HiPIMS-ITO Film during Annealing Process in a Large Temperature Range

High-Efficiency Photocatalytic H₂O₂ Production in a Dual Optical– and Membrane–Fiber System

The Impact of the Surface Modification on Tin-Doped Indium Oxide Nanocomposite Properties

Contact Info

Product

Resources

About

Tailoring properties of indium tin oxide thin films for their work in both electrochemical and optical label-free sensing systems

Cited by 29 publications

References 67 publications

Role of Ambient Hydrogen in HiPIMS-ITO Film during Annealing Process in a Large Temperature Range

Role of Ambient Hydrogen in HiPIMS-ITO Film during Annealing Process in a Large Temperature Range

High-Efficiency Photocatalytic H2O2 Production in a Dual Optical– and Membrane–Fiber System

The Impact of the Surface Modification on Tin-Doped Indium Oxide Nanocomposite Properties

Contact Info

Product

Resources

About

High-Efficiency Photocatalytic H₂O₂ Production in a Dual Optical– and Membrane–Fiber System