Conductive Characteristics of Indium Tin Oxide Thin Film on Polymeric Substrate under Long-Term Static Deformation

Tran, Dinh-Phuc; Lu, Hung I.; Lin, Chih Kuang

doi:10.3390/coatings8060212

Cited by 45 publications

(36 citation statements)

References 54 publications

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“…4d-f. The resistance increase of the brittle thin film under bending condition is known to be caused by the formation of cracks parallel to the bending axis 30 . Before any bending, no crack was observed in the nickel thin film (100 nm) on the Monolayer and Trilayer substrates (see Supporting Information Fig.…”

Section: Resultsmentioning

confidence: 99%

Multilayer Substrate to Use Brittle Materials in Flexible Electronics

Park

Seong

et al. 2020

Sci Rep

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Flexible materials with sufficient mechanical endurance under bending or folding is essential for flexible electronic devices. Conventional rigid materials such as metals and ceramics are mostly brittle so that their properties can deteriorate under a certain amount of strain. In order to utilize high-performance, but brittle conventional materials in flexible electronics, we propose a novel flexible substrate structure with a low-modulus interlayer. The low-modulus interlayer reduces the surface strain, where active electronic components are placed. The bending results with indium tin oxide (ITO) show that a critical bending radius, where the conductivity starts to deteriorate, can be reduced by more than 80% by utilizing the low-modulus layer. We demonstrate that even rigid electrodes can be used in flexible devices by manipulating the structure of flexible substrate.

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Section: Resultsmentioning

confidence: 99%

Multilayer Substrate to Use Brittle Materials in Flexible Electronics

Park

Seong

et al. 2020

Sci Rep

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“…ITO has commonly been employed as an electrode thanks to its special optoelectronic characteristics and excellent transmittance ( Table 2) [123]. The benefits of ITO are cost-effective and great electrical conductivity [124]. ITO's hydroxyl groups on the surface can be functionalized with a variety of chemical compounds (e.g.…”

Section: Indium Tin Oxidementioning

confidence: 99%

Electrochemical biosensors: perspective on functional nanomaterials for on-site analysis

2020

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Background: The electrochemical biosensor is one of the typical sensing devices based on transducing the biochemical events to electrical signals. In this type of sensor, an electrode is a key component that is employed as a solid support for immobilization of biomolecules and electron movement. Thanks to numerous nanomaterials that possess the large surface area, synergic effects are enabled by improving loading capacity and the mass transport of reactants for achieving high performance in terms of analytical sensitivity. Main body: We categorized the current electrochemical biosensors into two groups, carbon-based (carbon nanotubes and graphene) and non-carbon-based nanomaterials (metallic and silica nanoparticles, nanowire, and indium tin oxide, organic materials). The carbon allotropes can be employed as an electrode and supporting scaffolds due to their large active surface area as well as an effective electron transfer rate. We also discussed the non-carbon nanomaterials that are used as alternative supporting components of the electrode for improving the electrochemical properties of biosensors. Conclusion: Although several functional nanomaterials have provided the innovative solid substrate for high performances, developing on-site version of biosensor that meets enough sensitivity along with high reproducibility still remains a challenge. In particular, the matrix interference from real samples which seriously affects the biomolecular interaction still remains the most critical issues that need to be solved for practical aspect in the electrochemical biosensor. Recently, various electrochemistry-driven biosensing methods have been introduced for simple and miniaturized analytical devices for on-site analysis. This trend can be applied to replace the commercial lab instruments manufactured by the renowned in vitro diagnosis

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“…Nevertheless, resistivity values below 5 × 10 -4 Ω cm are not easily obtained for fabrication processes at room temperature [67]. Additionally, ITO is not highly bendable, and 20 nm thick ITO layers present critical bending radii around 4.5 mm [78]. Furthermore, films of ITO on polyethylene naphthalate (PEN) or polyethylene terephthalate (PET) can suffer significant damage when bending around a 10 mm radius [78].…”

Section: Amorphous Oxide Conductorsmentioning

confidence: 99%

“…Additionally, ITO is not highly bendable, and 20 nm thick ITO layers present critical bending radii around 4.5 mm [78]. Furthermore, films of ITO on polyethylene naphthalate (PEN) or polyethylene terephthalate (PET) can suffer significant damage when bending around a 10 mm radius [78]. To replace ITO, IZO has also been recently used for the development of flexible sensors as a contact material [79,80].…”

Section: Amorphous Oxide Conductorsmentioning

confidence: 99%

Flexible Sensors—From Materials to Applications

et al. 2019

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Flexible sensors have the potential to be seamlessly applied to soft and irregularly shaped surfaces such as the human skin or textile fabrics. This benefits conformability dependant applications including smart tattoos, artificial skins and soft robotics. Consequently, materials and structures for innovative flexible sensors, as well as their integration into systems, continue to be in the spotlight of research. This review outlines the current state of flexible sensor technologies and the impact of material developments on this field. Special attention is given to strain, temperature, chemical, light and electropotential sensors, as well as their respective applications.

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Conductive Characteristics of Indium Tin Oxide Thin Film on Polymeric Substrate under Long-Term Static Deformation

Cited by 45 publications

References 54 publications

Multilayer Substrate to Use Brittle Materials in Flexible Electronics

Multilayer Substrate to Use Brittle Materials in Flexible Electronics

Electrochemical biosensors: perspective on functional nanomaterials for on-site analysis

Flexible Sensors—From Materials to Applications

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