Silica Layer Used in Sensor Fabrication from a Low-Temperature Silane-Free Procedure

Jiang, Pei-Cheng; Chow, Yu-Ting; Chien, Chi-Wei; Chang, Cheng-Hsun-Tony; Lin, Chia-Ching

doi:10.3390/chemosensors9020032

Cited by 4 publications

(2 citation statements)

References 35 publications

(36 reference statements)

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“…Organosilanes are versatile compounds that can be employed as adhesion promoters, coupling agents, crosslinking and dispersion agents (Figure 3) (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25).…”

Section: Applications Of Organofunctional Silanesmentioning

confidence: 99%

Chemistry and Applications of Organosilanes – An Overview

Indumathy¹,

Gunasekhar²,

Sathiyanathan³

et al. 2022

ECS Trans.

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Organofunctional silanes are hybrid materials of silanes having attracted greater attention since the last decade owing to its versatile properties and wide range of applications. In this review, we have summarized the types of organosilanes (RnSiX4-n), their reactions, and applications. Organosilanes usually have two reactive groups, organofunctional groups and hydrolyzable alkoxy groups, which undergo hydrolysis and condensation. Silanols (Si-OH) and siloxane (Si-O-Si) structures are formed by hydrolysis and condensation reactions, respectively. In general, organosilanes acts as excellent binding agent due to its bridging capacity through (Si-O-Si) bond linkage with metal surfaces. From the extensive literature survey carried out, we understand that the silanes are synthesized without comprehending the reaction kinetics mechanism. In the past few decades, significant advances were witnessed in the development of various organofunctional silanes, which were used in a wide range of research areas based on its bifunctional characteristics.

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Section: Applications Of Organofunctional Silanesmentioning

confidence: 99%

Chemistry and Applications of Organosilanes – An Overview

Indumathy¹,

Gunasekhar²,

Sathiyanathan³

et al. 2022

ECS Trans.

View full text Add to dashboard Cite

show abstract

“…Evaporated coatings are usually produced by methods including physical vapor deposition (PVD), chemical vapor deposition (CVD), plasma enhanced chemical vapor deposition (PECDV), magnetron sputtering and atomic layer deposition (ALD), etc. [6,[11][12][13]. These techniques are reported in the literature to produce ultra-high oxygen and moisture diffusion barriers (i.e., down to 10 −6 g/m 2 •day) for the protection of OLEDs [6,14].…”

Section: Introductionmentioning

confidence: 99%

Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier

et al. 2021

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Silica is one of the most efficient gas barrier materials, and hence is widely used as an encapsulating material for electronic devices. In general, the processing of silica is carried out at high temperatures, i.e., around 1000 °C. Recently, processing of silica has been carried out from a polymer called Perhydropolysilazane (PHPS). The PHPS reacts with environmental moisture or oxygen and yields pure silica. This material has attracted many researchers and has been widely used in many applications such as encapsulation of organic light-emitting diodes (OLED) displays, semiconductor industries, and organic solar cells. In this paper, we have demonstrated the process optimization of the conversion of the PHPS into silica in terms of curing methods as well as curing the environment. Various curing methods including exposure to dry heat, damp heat, deep UV, and their combination under different environments were used to cure PHPS. FTIR analysis suggested that the quickest conversion method is the irradiation of PHPS with deep UV and simultaneous heating at 100 °C. Curing with this method yields a water permeation rate of 10−3 g/(m2⋅day) and oxygen permeation rate of less than 10−1 cm3/(m2·day·bar). Rapid curing at low-temperature processing along with barrier properties makes PHPS an ideal encapsulating material for organic solar cell devices and a variety of similar applications.

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Role of Silica, Carbon, and ZnO Nanomaterials in the Fabrication of Electrochemical Sensors for the Detection of Water Contaminants and Food Dye

Santra,

Datta,

Biswas

et al. 2024

Part & Part Syst Charact

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Silica‐based nanomaterials have attracted huge attention for maximizing their safety and efficacy due to their nontoxicity, chemical and thermal stability, size tunability, and versatile functionality. Nanosilica with ZnO or carbon in a composite has excellent usage as an electrochemical sensor. Recent technological progression in nanotechnology and nanoscience has seen a number of applications of zinc oxide (ZnO) nanomaterials ranging from electronics, and sensing to environmental, and biomedical applications because of its various applications, multifunction, high specific surface area, stability, biocompatibility, nontoxicity, electrochemical activities, and so on. Carbon also has various advantageous properties like renewability, low ohmic resistance, and very stable response due to which carbon paste electrodes have attracted attention in the fabrication of electrochemical sensors. Electrochemical sensors are inexpensive, portable, and have excellent ability in detecting water contaminants, pesticides, disinfectants, pathogens, and different molecules. Artificial dyes are usually mixed with vegetable sauces, drinks, and other food items, which can cause cancer in human body. Voltametric methods with electrochemical sensors can be used to detect them in food samples. In this review, the present applications of ZnO and carbon nanomaterial‐based chemical sensors are meticulously studied to detect water contaminants and food dyes where nanosilica plays an important role as a sensor modifier.

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Silica Layer Used in Sensor Fabrication from a Low-Temperature Silane-Free Procedure

Cited by 4 publications

References 35 publications

Chemistry and Applications of Organosilanes – An Overview

Chemistry and Applications of Organosilanes – An Overview

Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier

Role of Silica, Carbon, and ZnO Nanomaterials in the Fabrication of Electrochemical Sensors for the Detection of Water Contaminants and Food Dye

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