Tunable and transparent broadband metamaterial absorber with water-based substrate for optical window applications

Nanoscale ◽  
2021 ◽  
Author(s):  
Hongxing Dong ◽  
Yaqiang Zhang ◽  
Nanli Mou ◽  
Haonan Li ◽  
Xin Yao ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Metamaterial Absorber ◽  
Optical Transparency ◽  
Material Structure ◽  
Optical Window ◽  
Water Based ◽  
Window Applications ◽  
Ito Films

A tunable and transparent metamaterial absorber (MMA) with a water-based substrate is presented, with high optical transparency and broadband microwave absorptivity. In the material structure, indium–tin–oxide (ITO) films are included...

scholarly journals Optoelectronic Properties of Ultrathin Indium Tin Oxide Films: A First-Principle Study

Crystals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 30
Author(s):  
Xiaoyan Liu ◽  
Lei Wang ◽  
Yi Tong
Keyword(s):  
Film Thickness ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Density Functional ◽  
Optoelectronic Properties ◽  
Surface Strain ◽  
Strain Effect ◽  
First Principle ◽  
Electrical Resistivities ◽  
Ito Films

First-principle density functional theory simulations have been performed to predict the electronic structures and optoelectronic properties of ultrathin indium tin oxide (ITO) films, having different thicknesses and temperatures. Our results and analysis led us to predict that the physical properties of ultrathin films of ITO have a direct relation with film thickness rather than temperature. Moreover, we found that a thin film of ITO (1 nm thickness) has a larger absorption coefficient, lower reflectivity, and higher transmittance in the visible light region compared with that of 2 and 3 nm thick ITO films. We suggest that this might be due to the stronger surface strain effect in 1 nm thick ITO film. On the other hand, all three thin films produce similar optical spectra. Finally, excellent agreement was found between the calculated electrical resistivities of the ultrathin film of ITO and that of its experimental data. It is concluded that the electrical resistivities reduce along with the increase in film thickness of ITO because of the short strain length and limited bandgap distributions.

ITO nanoparticles break optical transparency/high-areal capacitance trade-off for advanced aqueous supercapacitors

2017 ◽  
Vol 5 (48) ◽  
pp. 25177-25186 ◽  
Author(s):  
Sebastiano Bellani ◽  
Leyla Najafi ◽  
Gabriele Tullii ◽  
Alberto Ansaldo ◽  
Reinier Oropesa-Nuñez ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Optical Transparency ◽  
Oxide Nanoparticles ◽  
Trade Off ◽  
Areal Capacitance ◽  
Tin Oxide Nanoparticles ◽  
Ito Nanoparticles ◽  
Indium Tin Oxide Nanoparticles

Indium tin oxide nanoparticles break optical transparency/high-areal capacitance trade-off for advanced aqueous supercapacitors.

Plasma-Assisted Deposition and Crystal Growth of Thin Indium-Tin-Oxide (ITO) Films

2004 ◽  
pp. 299-312 ◽  
Author(s):  
R. Hippler ◽  
H. Steffen ◽  
M. Quaas ◽  
T. Röwf ◽  
T.M. Tun ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Ito Films

Microstructure and Electrical Properties of ITO Films Deposited Using Various ITO Targets by Magnetron Sputtering

2007 ◽  
Vol 124-126 ◽  
pp. 431-434
Author(s):  
Joon Hong Park ◽  
Sang Chul Lee ◽  
Jin Ho Lee ◽  
Pung Keun Song
Keyword(s):  
Magnetron Sputtering ◽  
Substrate Temperature ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Target Surface ◽  
Flow Ratio ◽  
Dc Power ◽  
Alkali Glass ◽  
Oxygen Ratio ◽  
Ito Films

Indium Tin Oxide (ITO) films were deposited on non-alkali glass substrate by magnetron sputtering using commercial ITO target (target A) and improved ITO target (target B). Depositions were carried out at total gas pressure (Ptot) of 0.5 Pa, substrate temperature (Ts) of RT ~ 300 °C, oxygen flow ratio [O2/(O2+Ar)] of 0 ~ 1.0% and dc power of 100W. Target B showed relatively higher stability in film resistivity with increasing sputtering time, i.e., erosion ratio of target surface. Optimum oxygen ratio to obtain the lowest resistivity was decreased with increasing substrate temperature. The lowest resistivity was 1.06x10-4 6cm for the film deposited using target B at O2/(O2+Ar) ratio of 0.05% and at Ts =300 °C.

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

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3246 ◽  
Author(s):  
Jan Maslik ◽  
Ivo Kuritka ◽  
Pavel Urbanek ◽  
Petr Krcmar ◽  
Pavol Suly ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Room Temperature ◽  
Ambient Air ◽  
Protective Atmosphere ◽  
Baseline Drift ◽  
Nanoparticle Dispersions ◽  
Treatment Conditions ◽  
Water Based ◽  
Different Temperatures

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.

Patterning of indium-tin-oxide (ITO) films using laser-induced forward transfer (LIFT) technique

2011 ◽  
Author(s):  
Hironobu Sakata ◽  
Akira Yoshikado ◽  
Eisuke Yokoyama ◽  
Moriaki Wakaki
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Forward Transfer ◽  
Ito Films

Efficacy of titanium doped-indium tin oxide (Ti/TiO2–ITO) films in rapid oxygen generation under photocatalysis and their suitability for bio-medical application

2014 ◽  
Vol 16 (45) ◽  
pp. 24790-24799 ◽  
Author(s):  
A. Subrahmanyam ◽  
A. Rajakumar ◽  
Md. Rakibuddin ◽  
T. Paul Ramesh ◽  
M. Raveendra Kiran ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Medical Application ◽  
Artificial Lung ◽  
Assistive Devices ◽  
Oxygen Generation ◽  
Ito Films

Fabrication of novel titanium doped ITO films and understanding the mechanism for effective photocatalytic oxygen generation for artificial lung-assistive devices.

Properties of Indium Tin Oxide Films Prepared by Two-Targets Magnetron Sputtering

2014 ◽  
Vol 997 ◽  
pp. 337-340
Author(s):  
Jian Guo Chai
Keyword(s):  
Magnetron Sputtering ◽  
Substrate Temperature ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Optical Transmittance ◽  
Visible Range ◽  
Glass Substrates ◽  
Optimized Conditions ◽  
Tin Oxide Films ◽  
Ito Films

Indium tin oxide (ITO) films were deposited on glass substrates by magnetron sputtering. Properties of ITO films showed a dependence on substrate temperature. With an increasing in substrate temperature, the intensity of XRD peak increased and the grain size showed an evident increasing. The results show that increasing substrate temperature remarkably improves the characteristics of the films. The sheet resistance of 10 Ω/sq and the maximum optical transmittance of 90% in the visible range with optimized conditions can be achicved. The results of experiment demonstrate that high-quality films have been achieved by this technique.

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