RF- Sputtered Cadmium Oxide Thin Films for Gas Sensing Application
RF- Sputtered Cadmium Oxide Thin Films for Gas Sensing Application

Author: Anil Kumar Gadipelly

Publisher: LAP Lambert Academic Publishing

Published: 2015-02-04

Total Pages: 176

ISBN-13: 9783659539350

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In this book we have discussed the preparation and characterization of CdO thin films using RF reactive magnetron sputtering technique. The deposition parameters such as oxygen partial pressure, substrate temperature and film thickness are optimized for producing good quality films. Systematic characterization of as deposited and annealed films has been discussed from the crystal structure, surface morphology, film composition, optical and electrical properties. The films prepared under optimized conditions are tested for gas sensing characteristics towards ammonia gas.

High Performance Transparent Conducting Films of Cadmium Indate Prepared by RF Sputtering
High Performance Transparent Conducting Films of Cadmium Indate Prepared by RF Sputtering

Author:

Publisher:

Published: 1996

Total Pages: 12

ISBN-13:

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The authors are examining various spinel-structured thin films (e.g., Cd2SnO4, Zn2SnO4) to develop higher-quality transparent conducting oxides (TCO) than more conventional materials such as indium tin oxide. Here, the authors report on cadmium indate (CdIn2O4, CIO), which is another member of this family. Thin films of CIO were deposited by radio-frequency (RF) magnetron sputtering, from an oxide target, onto borosilicate glass substrates. The variables included the substrate temperature, sputtering gas composition, and pressure. Film properties were measured before and after heat treatment. Characterization involved Hall effect measurements, optical and infrared spectrophotometry, X-ray diffraction, and atomic-force microscopy. Film resistivities as low as 2.3 × 10−4 [Omega] cm were achieved for a film thickness of 0.55 [mu]m. The transmittance was 90% in the visible region of the spectrum, without correction for substrate losses and without an anti-reflection coating. The plasma resonance occurred at longer wavelengths than for other materials and this, with a bandgap of approximately 3.1 eV, presents a wide window for optical transmittance. The highest mobility was 54 cm2 V−1 s−1 and the highest carrier concentration was 7.5 × 102° cm−3.

Semiconducting Metal Oxides for Gas Sensing
Semiconducting Metal Oxides for Gas Sensing

Author: Yonghui Deng

Publisher: Springer Nature

Published: 2023-08-23

Total Pages: 402

ISBN-13: 9819926211

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The second edition of this book focuses on the synthesis, design, and application of semiconducting metal oxides as gas sensing materials, including the gas sensing mechanism, and modification methods for sensing materials, while also providing a comprehensive introduction to semiconductor gas sensing devices. As an essential part of IoT (Internet of things), gas sensors have shown great significance and promising prospects. Therefore, studies on functional mesoporous metal oxides, one of the most important gas sensing materials based on their unique Knudsen diffusion behavior and tailored pore structure, have increasingly attracted attention from various disciplines. The book offers a valuable reference guide to metal oxide gas sensing materials for undergraduate and graduate students alike. It will also benefit all researchers who are involved in synthesis and gas sensing of metal oxides nanomaterials with relevant frontier theories and concepts. Engineers working on research and development of semiconductor gas sensors will also find some new ideas for sensor design.

Functionalized Nanomaterials
Functionalized Nanomaterials

Author: Vineet Kumar

Publisher: CRC Press

Published: 2021-07-28

Total Pages: 603

ISBN-13: 1000367207

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Nanomaterials contain some unique properties due to their nanometric size and surface functionalization. Nanomaterial functionalization also affects their compatibility to biocompatibility and toxicity behaviors. environment and living organism. This makes functionalized nanomaterials a material with huge scope and few challenges. This book provides detailed information about the nanomaterial functionalization and their application. Recent advancements, challenges and opportunities in the preparation and applications of functionalized nanomaterials are also highlighted. This book can serve as a reference book for scientific investigators, doctoral and post-doctoral scholars; undergrad and grad. This book is very useful for multidisciplinary researchers, industry personnel’s, journalists, and policy makers. Features: Covers all aspects of Nanomaterial functionalization and its applications Describes and methods of functionalized nanomaterials synthesis for different applications Discusses the challenges, recent findings, and cutting-edge global research trends on functionalization of nanomaterials and its applications It discusses the regulatory frameworks for the safe use of functionalized nanomaterials. It contains contributions from international experts from multiple disciplines.

Solid State Gas Sensors,
Solid State Gas Sensors,

Author: P. T. Moseley

Publisher: CRC Press

Published: 1987

Total Pages: 266

ISBN-13:

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An overview of the principles & current technology of the main sensor types used for flammable gas detection, oxygen monitoring in combustion & car-exhaust control. Also includes toxic gas monitoring. A companion volume to Techniques & Mechanisms in Gas Sensing.

Nanofabrication for Smart Nanosensor Applications
Nanofabrication for Smart Nanosensor Applications

Author: Fernando Gomes

Publisher: Elsevier

Published: 2020-06-18

Total Pages: 474

ISBN-13: 0128235551

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Nanofabrication for Smart Nanosensor Applications addresses the design, manufacture and applications of a variety of nanomaterials for sensing applications. In particular, the book explores how nanofabrication techniques are used to create more efficient nanosensors, examines their major applications in biomedicine and environmental science, discusses the fundamentals of how nanosensors work, explores different nanofabrication techniques, and comments on toxicity and safety issues relating to the creation of nanosensors using certain nanomaterial classes. This book is an important resource for materials scientists and engineers who want to make materials selection decisions for the creation of new nansensor devices. Summarizes current research and applications of a variety of nanofabrication techniques for the creation of efficient sensing devices Provides readers with an understanding of surfaces and interfaces, a key challenge for those working on hybrid nanomaterials, carbon nanotubes, graphene, polymers and liquid crystal electro-optical imaging Discusses the variability and sight recognition of biopolymers, such as DNA molecules, which offer a wide range of opportunities for the self-organization of nanostructures into much more complex patterns