Metallic Oxides (<scp>ITO</scp>,<scp>ZnO</scp>,<scp>SnO<sub>2</sub></scp>,<scp>TiO<sub>2</sub></scp>)

Ellmer, K.; Mientus, R.; Seeger, Stefan

doi:10.1002/9783527804603.ch2_1

Cited by 11 publications

(5 citation statements)

References 200 publications

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“…with polymers developed extended π-systems in order to contribute towards efficient electron conduction. In addition, the nanocomposites of polymers and the range of metal oxides (tin oxide, silver oxide, zinc oxide, titania, and many more) have been reported [113][114][115]. Consequently, high performance nanocomposites have good sensitivity and selectivity for toxic gases like the oxides of carbon, sulfur, nitrogen, and organic vapors [116].…”

Section: Gas-sensingmentioning

confidence: 99%

Multifunctional Polymeric Nanocomposites for Sensing Applications—Design, Features, and Technical Advancements

et al. 2023

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Among nanocomposite materials, multifunctional polymer nanocomposites have prompted important innovations in the field of sensing technology. Polymer-based nanocomposites have been successfully utilized to design high-tech sensors. Thus, conductive, thermoplast, or elastomeric, as well as natural polymers have been applied. Carbon nanoparticles as well as inorganic nanoparticles, such as metal nanoparticles or metal oxides, have reinforced polymer matrices for sensor fabrication. The sensing features and performances rely on the interactions between the nanocomposites and analytes like gases, ions, chemicals, biological species, and others. The multifunctional nanocomposite-derived sensors possess superior durability, electrical conductivity, sensitivity, selectivity, and responsiveness, compared with neat polymers and other nanomaterials. Due to the importance of polymeric nanocomposite for sensors, this novel overview has been expanded, focusing on nanocomposites based on conductive/non-conductive polymers filled with the nanocarbon/inorganic nanofillers. To the best of our knowledge, this article is innovative in its framework and the literature covered regarding the design, features, physical properties, and the sensing potential of multifunctional nanomaterials. Explicitly, the nanocomposites have been assessed for their strain-sensing, gas-sensing, bio-sensing, and chemical-sensing applications. Here, analyte recognition by nanocomposite sensors have been found to rely on factors such as nanocomposite design, polymer type, nanofiller type, nanofiller content, matrix–nanofiller interactions, interface effects, and processing method used. In addition, the interactions between a nanocomposite and analyte molecules are defined by high sensitivity, selectivity, and response time, as well as the sensing mechanism of the sensors. All these factors have led to the high-tech sensing applications of advanced nanocomposite-based sensors. In the future, comprehensive attempts regarding the innovative design, sensing mechanism, and the performance of progressive multifunctional nanocomposites may lead to better the strain-sensing, gas/ion-sensing, and chemical-sensing of analyte species for technical purposes.

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Section: Gas-sensingmentioning

confidence: 99%

Multifunctional Polymeric Nanocomposites for Sensing Applications—Design, Features, and Technical Advancements

et al. 2023

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“…Doping is a tool for controlling the properties of these oxide thin films. Ga 2 O 3 , SnO 2 , In 2 O 3 , CdO and ZnO are widely known n-type semiconductor oxides [94]. Zinc oxide-based metal oxide semiconductors have been investigated extensively due to their various applications such as a diode, sensors, and solar cells in recent years.…”

Section: N-type Metal Oxide Semiconductorsmentioning

confidence: 99%

Metal oxide semiconductor-based Schottky diodes: a review of recent advances

Al-Ahmadi

2020

Mater. Res. Express

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Metal-oxide-semiconductor (MOS) structures are essential for a wide range of semiconductor devices. This study reviews the development of MOS Schottky diode, which offers enhanced performance when compared with conventional metal-semiconductor Schottky diode structures because of the presence of the oxide layer. This layer increases Schottky barrier heights and reduced leakage currents. It also compared the MOS and metal-semiconductor structures. Recent advances in the development of MOS Schottky diodes are then discussed, with a focus on aspects such as insulating materials development, doping effects, and manufacturing technologies, along with potential device applications ranging from hydrogen gas sensors to photodetectors. Device structures, including oxide semiconductor thin film-based devices, p-type and n-type oxide semiconductor materials, and the optical and electrical properties of these materials are then discussed with a view toward optoelectronic applications. Finally, potential future development directions are outlined, including the use of thinfilm nanostructures and high-k dielectric materials, and the application of graphene as a Schottky barrier material.Low contact resistance is required for good ohmic contact and high-speed semiconductor devices. In contrast, an ideal Schottky junction acts like an ideal diode, where high current only flows in the forward-biased direction and offers infinite resistance in the opposite direction [11]. The type of junction can be changed by varying different metals and the doping level of the semiconductor [12]. The core focus of this study is on the Schottky diode for its use in the switching devices, which reduces the current leakage and power consumption [13].This review is categorized into fives sections. Following the introductory section, the comparison of MS and MOS devices is provided in the second section, while important equations related to MOS Schottky Diode are described for carrier transport mechanism in the third section. The fourth section highlights the recent progress of MOS devices and their applications in the fourth section. Lastly, section five briefly sums up the reviewed findings and indicates the future direction of the work. ReviewGenerally, the metal oxide/insulator semiconductor (MOS/MIS) structure is obtained by inserting an insulator layer between a metal and a semiconductor [14]. In the MOS structure, an oxide layer separates the metal and semiconductor from each other. For instance, at the metal/insulator interfaces, there is a continuous distribution of surface states with energies located in the bandgap of the semiconductor [15]. The intermediate oxide layer helps prevent the diffusion of the metal into the semiconductor but also alleviates the electric field reduction in MIS Schottky diodes. The interfacial layer helps determine the device characteristics, performance, and stability [16]. Karabulut et al [17] explains that the MOS or MIS capacitor is the most effective device for semiconductor surfaces based on their practical...

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“…The transport in these polycrystalline materials is more complicated than in corresponding single-crystal materials. However, they are preferentially used because of their special characteristics, for example, the fact that TiO 2 is characterized by a high refractive index in the visible part of the spectrum and a high chemical and thermal stability and the fact that tin (IV) oxide has the highest chemical stability, which is a prerequisite for several applications, for example, in electrochemical elements [193]. Thus, titanium (IV) oxide has the greatest practical importance in photocatalytic processes, zinc oxide is widely used both as a photocatalyst and as sensitive layers of gas sensors, and tin (IV) oxide holds the greatest potential as a sensitive layer for miniature gas sensors.…”

Section: Opticalmentioning

confidence: 99%

Metaloxide Nanomaterials and Nanocomposites of Ecological Purpose

Dontsova

Nahirniak

Астрелін

2019

Journal of Nanomaterials

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The features of the properties and creation of nanocomposite metal oxide materials, especially TiO2, ZnO, SnO2, ZrO2, and Fe3O4, and their applications for ecology are considered in the article. It is shown that nanomaterials based on them are very promising for use in the ecological direction, especially as sorbents, photocatalysts, and sensitive layers of gas sensors. The crystallochemical characteristics, surface structure, and surface phenomena that occur when they enter the water and air environment are given for these metal oxides, and it is shown that they play a significant role in obtaining the sorption and catalytic characteristics of these nanomaterials. Particular attention is paid to the dispersion and morphology of metal oxide particles by which their physical and chemical properties can be controlled. Synthesis methods of metal oxide nanomaterials and ways for creating of nanocomposites based on them are characterized, and it is noted that there are many methods for obtaining individual nanoparticles of metal oxides with certain properties. The main task is the correct selection and testing of parameters. The prospects for the production of metal oxide nanocomposites and their application for environmental applications are noted, which will lead to a fundamentally new class of materials and new environmental technologies with their participation.

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Metallic Oxides (ITO,ZnO,SnO₂,TiO₂)

Cited by 11 publications

References 200 publications

Multifunctional Polymeric Nanocomposites for Sensing Applications—Design, Features, and Technical Advancements

Multifunctional Polymeric Nanocomposites for Sensing Applications—Design, Features, and Technical Advancements

Metal oxide semiconductor-based Schottky diodes: a review of recent advances

Metaloxide Nanomaterials and Nanocomposites of Ecological Purpose

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Metallic Oxides (ITO,ZnO,SnO2,TiO2)

Cited by 11 publications

References 200 publications

Multifunctional Polymeric Nanocomposites for Sensing Applications—Design, Features, and Technical Advancements

Multifunctional Polymeric Nanocomposites for Sensing Applications—Design, Features, and Technical Advancements

Metal oxide semiconductor-based Schottky diodes: a review of recent advances

Metaloxide Nanomaterials and Nanocomposites of Ecological Purpose

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Product

Resources

About

Metallic Oxides (ITO,ZnO,SnO₂,TiO₂)