Structural, Optical and Electrical, Properties of As-Se-Tl Films PDF Download
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Author: Adel Eldenglawey
Publisher: LAP Lambert Academic Publishing
ISBN: 9783844398434
Category :
Languages : en
Pages : 152
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Book Description
Bulk alloys of A s-Se-Tl were synthesized by weighting out suitable proportions of the required compositions with purity 5N. Melting them up to 875 C for 16 hours followed by rapid quenching in ice water. Thermal evaporation technique was used to prepare A s-Se-Tl films on glass substrates. The produced films have 200 nm thickness. X-ray diffraction and differential scanning calorimetry were used to investigate the film structural properties. The nature of the produced alloys, Glass transition, crystallization temperature and melting point as well as the permittivity of the as-deposited and annealed films up to 373 K were studied as function of Tl-content. Optical constants like dispersion energy, high frequency dielectric constant, lattice dielectric constant, and the oscillator energy were determined. Composition effect on the dc electrical properties was investigated in the temperature range (175-375)K. Hopping conduction dominates at low temperature region (173-300) K. At the high temperature region (300-373) K, band conduction occurs. Seebeck coefficient, a.c conductivity and related constants were determined.
Author: Adel Eldenglawey
Publisher: LAP Lambert Academic Publishing
ISBN: 9783844398434
Category :
Languages : en
Pages : 152
Get Book Here
Book Description
Bulk alloys of A s-Se-Tl were synthesized by weighting out suitable proportions of the required compositions with purity 5N. Melting them up to 875 C for 16 hours followed by rapid quenching in ice water. Thermal evaporation technique was used to prepare A s-Se-Tl films on glass substrates. The produced films have 200 nm thickness. X-ray diffraction and differential scanning calorimetry were used to investigate the film structural properties. The nature of the produced alloys, Glass transition, crystallization temperature and melting point as well as the permittivity of the as-deposited and annealed films up to 373 K were studied as function of Tl-content. Optical constants like dispersion energy, high frequency dielectric constant, lattice dielectric constant, and the oscillator energy were determined. Composition effect on the dc electrical properties was investigated in the temperature range (175-375)K. Hopping conduction dominates at low temperature region (173-300) K. At the high temperature region (300-373) K, band conduction occurs. Seebeck coefficient, a.c conductivity and related constants were determined.
Author: Philip William Diodato
Publisher:
ISBN:
Category : Thin films
Languages : en
Pages : 348
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Book Description
Author: J. M. P. Pozuelo
Publisher:
ISBN:
Category :
Languages : en
Pages : 181
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Book Description
Author: Mushahid Husain
Publisher: Springer
ISBN: 8132226682
Category : Technology & Engineering
Languages : en
Pages : 439
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Book Description
This book provides a review of the latest research findings and key applications in the field of nanomaterials. The book contains twelve chapters on different aspects of nanomaterials. It begins with key fundamental concepts to aid readers new to the discipline of nanomaterials, and then moves to the different types of nanomaterials studied. The book includes chapters based on the applications of nanomaterials for nano-biotechnology and solar energy. Overall, the book comprises chapters on a variety of topics on nanomaterials from expert authors across the globe. This book will appeal to researchers and professional alike, and may also be used as a reference for courses in nanomaterials.
Author: Donald Robert Uhlmann
Publisher:
ISBN:
Category : Glass
Languages : en
Pages : 280
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Book Description
Seven independently-authored chapters consider selected topics related to the rapidly growing interest in optical glass among scientists who were hitherto satisfied with opaque ceramics. They cover oxide, halide, and photochromic glasses; nonlinear optical properties; optical basicity; optical fiber
Author: Ghenadii Korotcenkov
Publisher: Springer Nature
ISBN: 3031195310
Category : Technology & Engineering
Languages : en
Pages : 585
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Book Description
Three-volumes book “Handbook of II-VI Semiconductor-Based Sensors and Radiation Detectors” is the first to cover both chemical sensors and biosensors and all types of photodetectors and radiation detectors based on II-VI semiconductors. It contains a comprehensive and detailed analysis of all aspects of the application of II-VI semiconductors in these devices. The first volume "Materials and Technologies" of a three-volume set describes the physical, chemical and electronic properties of II-VI compounds, which give rise to an increased interest in these semiconductors. Technologies that are used in the development of various devices based on II-VI connections, such as material synthesis, deposition, characterization, processing, and device fabrication, are also discussed in detail in this volume. It covers also topics related to synthesis and application of II-VI-based nanoparticles and quantum dots, as well their toxicity, biocompatibility and biofunctionalization.
Author:
Publisher: Newnes
ISBN: 0080932282
Category : Science
Languages : en
Pages : 3572
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Book Description
Semiconductors are at the heart of modern living. Almost everything we do, be it work, travel, communication, or entertainment, all depend on some feature of semiconductor technology. Comprehensive Semiconductor Science and Technology, Six Volume Set captures the breadth of this important field, and presents it in a single source to the large audience who study, make, and exploit semiconductors. Previous attempts at this achievement have been abbreviated, and have omitted important topics. Written and Edited by a truly international team of experts, this work delivers an objective yet cohesive global review of the semiconductor world. The work is divided into three sections. The first section is concerned with the fundamental physics of semiconductors, showing how the electronic features and the lattice dynamics change drastically when systems vary from bulk to a low-dimensional structure and further to a nanometer size. Throughout this section there is an emphasis on the full understanding of the underlying physics. The second section deals largely with the transformation of the conceptual framework of solid state physics into devices and systems which require the growth of extremely high purity, nearly defect-free bulk and epitaxial materials. The last section is devoted to exploitation of the knowledge described in the previous sections to highlight the spectrum of devices we see all around us. Provides a comprehensive global picture of the semiconductor world Each of the work's three sections presents a complete description of one aspect of the whole Written and Edited by a truly international team of experts
Author: M. H. Islam
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Pierre Villars
Publisher: Walter de Gruyter
ISBN: 3110276658
Category : Science
Languages : en
Pages : 1827
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Book Description
By browsing about 10 000 000 scientific articles of over 200 major journals mainly in a 'cover to cover approach' some 200 000 publications were selected. The extracted data is part of the following fundamental material research fields: crystal structures (S), phase diagrams (also called constitution) (C) and the comprehensive field of intrinsic physical properties (P). This work has been done systematically starting with the literature going back to 1900. The above mentioned research field codes (S, C, P) as well as the chemical systems investigated in each publication were included in the present work. The aim of the Inorganic Substances Bibliography is to provide researchers with a comprehensive compilation of all up to now published scientific publications on inorganic systems in only three handy volumes.
Author: Augustine O. Ayeni
Publisher: Springer Nature
ISBN: 3030967212
Category : Technology & Engineering
Languages : en
Pages : 393
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Book Description
This book presents novel techniques, current trends, and cutting-edge technologies in energy and biochemical processes. The authors explore recent advances that solve challenges related to the implications and commercialization of these processes by introducing new techniques or modifying existing technologies to meet future demands for food materials, bioproducts, fossil fuels, biofuels, and bioenergy. Divided into three parts, the first section of the book addresses issues related to the utilization and management of energy towards the efficient characterization and conversion of wastes or raw-/bio- materials to useful products. The second section focuses largely on studies on molecular detection of analytes, purification, and characterization of products recovered from biochemical, enzymatic, food, and phytochemicals, as well as biostimulation and bioaugmentation processes. The final section discusses areas related to heat and mass transfer, fuel processing technologies, nanofluids, and their applications.
