Inkjet printing of MOx-based heterostructures for gas sensing and safety applicationsRecent trends, challenges, and future scope

Title

Inkjet printing of MOx-based heterostructures for gas sensing and safety applicationsRecent trends, challenges, and future scope

Creator

Murthy H.

Description

Volatile organic compounds (VOCs) are pollutants that affect air quality and human health. Detection of VOCs is important for environmental safety. Metal oxide semiconductor (MOS) is a promising product for gas sensors due to its advantages of easy fabrication, low cost, and good portability. Their performance is greatly affected by microstructure, defects, catalysts, heterojunctions, and moisture. Metal oxidebased nanomaterials serve as a platform to identify various VOCs with high sensitivity due to their wide bandgap, n-type transport, and excellent electrical properties. Gas detection devices based on doping, altered morphology, and heterostructure have been shown to be effective against VOCs. Inkjet printing (IJP) is a promising process for the room-temperature deposition of functional metal oxides for sensing applications. However, the development of metal oxide ink requires a careful selection of the precursors, solvents, and additives. This section will focus on the production of various metal oxide (MOx)-based sensors such as ZnO, SnO2, MoO3, CuO, Cu2O, Mn3O4, and WO3 for the detection of VOCs such as acetylene, toluene, ethanol, formaldehyde, and acetone. It will summarize recent research and advances in large-scale printing of MOx-based nanocomposites. This work illustrates the need to explore new composite materials, structures, and morphology as well as other methods for better and faster transformation. The role of solvents in ink stabilization and printing and the behavior of ink rheological parameters in the IJP spraying process will also be discussed. Ink formulations for the synthesis of functional nanocomposites will be analyzed and presented for future scope and challenges. 2024 Elsevier Inc. All rights reserved.

Source

Complex and Composite Metal Oxides for Gas, VOC and Humidity Sensors, Volume 2: Technology and New Trends, pp. 133-157.

Date

2024-01-01

Publisher

Elsevier

Subject

Acetone; Acetylene; Doping; Ethanol; Formaldehyde; Heterostructures; Ink formulation; Inkjet printing; Metal oxide; Metal oxide semiconductor; Methanol; MOx; Nanocomposites; Nanostructures; Toluene; VOC

Coverage

Murthy H., Department of Electronics and Communication Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Karnataka, Bengaluru, India

Rights

Restricted Access

Relation

ISBN: 978-032395476-1; 978-032395477-8

Format

Online

Language

English

Type

Book chapter

Identifier

https://doi.org/10.1016/B978-0-323-95476-1.00008-3

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85193343937&doi=10.1016%2fB978-0-323-95476-1.00008-3&partnerID=40&md5=ace62830907ebe231188d33348085bf8