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A New Class Of Chemical Sensors For Gases Based On Photoluminescence From Semiconductor Derived Interfaces
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Book Synopsis A New Class of Chemical Sensors for Gases Based on Photoluminescence from Semiconductor-Derived Interfaces by : Gerald J. Meyer
Download or read book A New Class of Chemical Sensors for Gases Based on Photoluminescence from Semiconductor-Derived Interfaces written by Gerald J. Meyer and published by . This book was released on 1987 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The photoluminescence (PL) of semiconductors can be perturbed by exposure of the solid to gases. These physicochemial interactions occurring at the semiconductor surface can be exploited to create a new class of chemical sensors. For homogeneous semiconductors, a dead-layer model has been used to correlate changes in PL intensity with variations in the depletion width W caused by the gas. A graded n-CdSxSe1-x substrate permits modulation of the PL spectral distribution by gases and is color-coded to permit PL changes to be correlated with variations in the effective electric field present in the solid. Three semiconductors that have been chemically derivatized with ferrocene can sense volatile oxidants and reductants; and etched semiconductors can respond to sulfur dioxide and ammonia, presumably through acid-base interactions. All of the structures lend themselves to device fabrication by use of optical fiber technology. Keywords: Photoluminescence; Dead-layer model; Depletion width; Surface recombination velocity; Chemical sensors, Hydrogen, Ammonia, Sulfur dioxide, Iodine, Hydrazine, and Cadium compounds.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Sensors by : Ghenadii Korotcenkov
Download or read book Chemical Sensors written by Ghenadii Korotcenkov and published by Momentum Press. This book was released on 2013-01-10 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Momentum Press is proud to bring to you Chemical Sensors: Simulation and Modeling Volume 4: Optical Sensors, edited by Ghenadii Korotcenkov. This is the fourth of a new multi-volume comprehensive reference work that provides computer simulation and modeling techniques in various fields of chemical sensing and the important applications for chemical sensing such as bulk and surface diffusion, adsorption, surface reactions, sintering, conductivity, mass transport, and interphase interactions. In this fourth volume, you will find background and guidance on: • Approaches used for modeling and simulation of various types of optical sensors such as fiber optic, surface plasmon resonance, Fabry-Pérot interferometers, transmittance in the midinfrared region, luminescence-based devices, and more • Approaches used for design and optimization of optical systems aimed for both remote gas sensing and gas analysis chambers for the nondispersive infrared (NDIR) spectral range • Multiscale atomistic simulation of hierarchical nanostructured materials for optical chemical sensing Chemical sensors are integral to the automation of myriad industrial processes and everyday monitoring of such activities as public safety, engine performance, medical therapeutics, and many more. This multi-volume reference work covering simulation and modeling will serve as the perfect complement to Momentum Press’s 6-volume reference work, Chemical Sensors: Fundamentals of Sensing Materials and Chemical Sensors: Comprehensive Sensor Technologies, which present detailed information related to materials, technologies, construction, and application of various devices for chemical sensing. Each simulation and modeling volume in the present series reviews modeling principles and approaches peculiar to specific groups of materials and devices applied for chemical sensing.
Book Synopsis Semiconductor Device-Based Sensors for Gas, Chemical, and Biomedical Applications by : Fan Ren
Download or read book Semiconductor Device-Based Sensors for Gas, Chemical, and Biomedical Applications written by Fan Ren and published by CRC Press. This book was released on 2016-04-19 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sales of U.S. chemical sensors represent the largest segment of the multi-billion-dollar global sensor market, which includes instruments for chemical detection in gases and liquids, biosensors, and medical sensors. Although silicon-based devices have dominated the field, they are limited by their general inability to operate in harsh environments
Book Synopsis Extended Abstracts by : Electrochemical Society
Download or read book Extended Abstracts written by Electrochemical Society and published by . This book was released on 1987 with total page 2446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biotechnology: Bridging Research and Applications by : Daphne Kamely
Download or read book Biotechnology: Bridging Research and Applications written by Daphne Kamely and published by Springer Science & Business Media. This book was released on 1991-07-31 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biotechnology is advancing at a rapid pace with numerous applications in medicine, industry, agriculture and environmental remediation. Recognizing this, government, industrial and academic research and development invest ment in biotechnology has expanded rapidly. The past decade has seen the emergence of applications of this technology with a dual-use potential. Mili tary applications focus on four major areas: biomedical technology, such as vaccine development and medical diagnostics; detection of toxins, chemicals and pathogens; material biotechnology; and biological decontamination, in cluding biodegradation and bioremediation. This conference emphasizes the non-medical applications of biotechnol ogy. The first two sessions focus on the synthesis and properties of molecules that may be used in detectors. The traditional approach to detection of chemical and biological agents relied on the development of specific assays or analyses for known agents. Advances in molecular biology have made possible the production of large quantities of toxins which were previously available in minute quantities, and the molecular engineering of toxins and pathogens with specific pharmacologic and physical-chemical properties. In addition to the traditional approaches to detection of specific known compounds, biotechnology now offers generic approaches to detection. Physiological targets, known as receptors, are primary targets for many drugs and toxins. Similarly, pathogens rely on receptors to gain access to cells. These receptors function as sensitive detectors, generating signals which are transduced and amplified.
Book Synopsis Technical Reports Awareness Circular : TRAC. by :
Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1987-10 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Semiconductor Gas Sensors by : Raivo Jaaniso
Download or read book Semiconductor Gas Sensors written by Raivo Jaaniso and published by Elsevier. This book was released on 2013-08-31 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor gas sensors have a wide range of applications in safety, process control, environmental monitoring, indoor or cabin air quality and medical diagnosis. This important book summarises recent research on basic principles, new materials and emerging technologies in this essential field. The first part of the book reviews the underlying principles and sensing mechanisms for n- and p-type oxide semiconductors, introduces the theory for nanosize materials and describes the role of electrode–semiconductor interfaces. The second part of the book describes recent developments in silicon carbide- and graphene-based gas sensors, wide bandgap semiconductor gas sensors and micromachined and direct thermoelectric gas sensors. Part 3 discusses the use of nanomaterials for gas sensing, including metal oxide nanostructures, quantum dots, single-alled carbon nanotubes and porous silicon. The final part of the book surveys key applications in environmental monitoring, detecting chemical warfare agents and monitoring gases such as carbon dioxide. Semiconductor gas sensors is a valuable reference work for all those involved in gas monitoring, including those in the building industry, environmental engineers, defence and security specialists and researchers in this field. Provides an overview of resistor and non-resistor sensors Reviews developments in gas sensors and sensing methods, including graphene based sensors and direct thermoelectric sensors Discusses the use of nanomaterials in gas sensing
Book Synopsis Government Reports Annual Index: Keyword A-L by :
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1987 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1991-10 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1987 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research in Chemistry at Undergraduate Institutions by : Brian Andreen
Download or read book Research in Chemistry at Undergraduate Institutions written by Brian Andreen and published by . This book was released on 1990 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present evidence for the role of undergraduate research in college completion and preparation of a highly skilled workforce, particularly in STEM fields.
Book Synopsis Steady-state and Time-resolved Photoluminescence Studies of Semiconductor-derived Interfaces by : Larry Kit-Wing Leung
Download or read book Steady-state and Time-resolved Photoluminescence Studies of Semiconductor-derived Interfaces written by Larry Kit-Wing Leung and published by . This book was released on 1991 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 1948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Semiconductor Device-Based Sensors for Gas, Chemical, and Biomedical Applications by : Fan Ren
Download or read book Semiconductor Device-Based Sensors for Gas, Chemical, and Biomedical Applications written by Fan Ren and published by . This book was released on 2016 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sales of U.S. chemical sensors represent the largest segment of the multi-billion-dollar global sensor market, which includes instruments for chemical detection in gases and liquids, biosensors, and medical sensors. Although silicon-based devices have dominated the field, they are limited by their general inability to operate in harsh environments.
Download or read book Science Abstracts written by and published by . This book was released on 1993 with total page 2332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metal-Organic Framework Materials by : Leonard R. MacGillivray
Download or read book Metal-Organic Framework Materials written by Leonard R. MacGillivray and published by John Wiley & Sons. This book was released on 2014-09-19 with total page 1210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-Organic Frameworks (MOFs) are crystalline compounds consisting of rigid organic molecules held together and organized by metal ions or clusters. Special interests in these materials arise from the fact that many are highly porous and can be used for storage of small molecules, for example H2 or CO2. Consequently, the materials are ideal candidates for a wide range of applications including gas storage, separation technologies and catalysis. Potential applications include the storage of hydrogen for fuel-cell cars, and the removal and storage of carbon dioxide in sustainable technical processes. MOFs offer the inorganic chemist and materials scientist a wide range of new synthetic possibilities and open the doors to new and exciting basic research. Metal-Organic Frameworks Materials provides a solid basis for the understanding of MOFs and insights into new inorganic materials structures and properties. The volume also reflects progress that has been made in recent years, presenting a wide range of new applications including state-of-the art developments in the promising technology for alternative fuels. The comprehensive volume investigates structures, symmetry, supramolecular chemistry, surface engineering, recognition, properties, and reactions. The content from this book will be added online to the Encyclopedia of Inorganic and Bioinorganic Chemistry: http://www.wileyonlinelibrary.com/ref/eibc
