Effect of additives on the properties of printed ITO sensors

Koo, Jieun; Lee, Seok-hwan; Cho, Sung-min; Chang, Jiho

doi:10.3938/jkps.71.335

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…In this article, the influence of the single-wall carbon nanotubes (SWCNTs) on the relief properties of ITO is considered. The relevant studies have also been described in papers [38,39]. In article [38], SWCNTs were used as a doping material for ITO in a sol-gel spin-coating technique, which improved the mechanical properties; on the other hand, the charge carrier concentration decreased from 5.8 × 10 20 cm −3 to (1.9-3.3) × 10 20 cm −3 , which led to an increase in resistivity from 3.6 × 10 −4 Ω × cm to (4.6-11.0) × 10 −4 Ω × cm.…”

Section: Introductionmentioning

confidence: 99%

“…In article [38], SWCNTs were used as a doping material for ITO in a sol-gel spin-coating technique, which improved the mechanical properties; on the other hand, the charge carrier concentration decreased from 5.8 × 10 20 cm −3 to (1.9-3.3) × 10 20 cm −3 , which led to an increase in resistivity from 3.6 × 10 −4 Ω × cm to (4.6-11.0) × 10 −4 Ω × cm. In paper [39], multi-wall carbon nanotubes (MWCNTs) were added to ITO paste. Thin films based on this mixture were printed on quartz substrates.…”

Section: Introductionmentioning

confidence: 99%

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Perspective Coatings Based on Structured Conducting ITO Thin Films for General Optoelectronic Applications

Toikka,

Ilin,

Kamanina

2024

Coatings

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In many electro-optical devices, the conductive layer is an important key functional element. Among others, unique indium tin oxide (ITO) contacts take priority. ITO structure is widely used as the optical transparent and electrically conductive material in general optoelectronics, biosensors and electrochemistry. ITO is one of the key elements in the liquid crystal (LC) displays, spatial light modulators (SLMs) and LC convertors. It should be mentioned that not only the morphology of this layer structure but also the surface features play an important role in the study of the physical parameters of the ITO. In order to switch the surface properties (roughness, average tilt angle and surface free energy) of the ITO via the laser-oriented deposition (LOD) method, carbon nanotubes (CNTs) were implanted. In the LOD technique, the CO2 laser (λ = 10.6 μm, P = 30 W) with the control electric grid was used. The switching of the deposition conditions was provided via the varying electrical strength of the control grid in the range of 100–600 V/cm. The diagnostics of the surfaces were performed using AFM analysis and wetting angle measurements. The components of the surface free energy (SFE) were calculated using the OWRK method. The main experimental results are as follows: the roughness increases with a rise in the electric field strength during the deposition of the CNTs; the carbon nanotubes provide a higher level of the dispersive component of SFE (25.0–31.4 mJ/m2 against 22.2 mJ/m2 in the case of pure ITO); the CNTs allow an increase in the wetting angle of the 5CB liquid crystal drops from 38.35° to 58.95°. Due to the possibility of the switching properties of the ITO/CNT surfaces, these modifications have potential interest in microfluidics applications and are useful for the liquid crystal’s electro-optics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Perspective Coatings Based on Structured Conducting ITO Thin Films for General Optoelectronic Applications

Toikka,

Ilin,

Kamanina

2024

Coatings

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“…It has already been demonstrated that the screen printing of organometallic precursor paste followed by firing at high temperatures (600 °C) for a relatively long time (for 40 min at optimum for ITO crystallization) can be utilized for sensor fabrication [ 6 ]. The latest efforts demonstrated the suitability of screen printing for pastes directly composed from ITO nanocrystals and binders for sensor fabrication [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Water-Based Indium Tin Oxide Nanoparticle Ink for Printed Toluene Vapours Sensor Operating at Room Temperature

Mašlík

Kuřitka

Urbánek

et al. 2018

Sensors

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This study is focused on the development of water-based ITO nanoparticle dispersions and ink-jet fabrication methodology of an indium tin oxide (ITO) sensor for room temperature operations. Dimensionless correlations of material-tool-process variables were used to map the printing process and several interpretational frameworks were re-examined. A reduction of the problem to the Newtonian fluid approach was applied for the sake of simplicity. The ink properties as well as the properties of the deposited layers were tested for various nanoparticles loading. High-quality films were prepared and annealed at different temperatures. The best performing material composition, process parameters and post-print treatment conditions were used for preparing the testing sensor devices. Printed specimens were exposed to toluene vapours at room temperature. Good sensitivity, fast responses and recoveries were observed in ambient air although the n-type response mechanism to toluene is influenced by moisture in air and baseline drift was observed. Sensing response inversion was observed in an oxygen and moisture-free N2 atmosphere which is explained by the charge-transfer mechanism between the adsorbent and adsorbate molecules. The sensitivity of the device was slightly better and the response was stable showing no drifts in the protective atmosphere.

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Methane adsorption on the surface of metal (Fe, Ni, Pd) decorated SWCNT: A density functional theory (DFT) study

Fotooh

Nayeri

2021

Surface Science

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Effect of additives on the properties of printed ITO sensors

Cited by 6 publications

References 19 publications

Perspective Coatings Based on Structured Conducting ITO Thin Films for General Optoelectronic Applications

Perspective Coatings Based on Structured Conducting ITO Thin Films for General Optoelectronic Applications

Water-Based Indium Tin Oxide Nanoparticle Ink for Printed Toluene Vapours Sensor Operating at Room Temperature

Methane adsorption on the surface of metal (Fe, Ni, Pd) decorated SWCNT: A density functional theory (DFT) study

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