Amorphous Chalcogenides: The Past, Present and Future

Front Cover
Elsevier, Sep 26, 2011 - Science - 154 pages

Amorphous chalcogenide semiconductors have commercial value and have many uses such as image formation, including x-rays, and high-definition TV pick up tubes. They have widespread application in the microelectronics industry and amorphous metallic alloys also have useful magnetic properties.

This book focuses on their imaging applications and related properties. It examines the two groups of amorphous semiconductors that are of most commercial interest:

  1. the chalcogenide glasses
  2. the tetrahedrally bonded amorphous solids such as amorphous silicon, germanium and related alloys

Both of these groups may be conveniently prepared in the form of thin/thick films which is of considerable importance in applications where large-area coverage of flat or curved surfaces of rigid or flexible materials is desirable such as in photovoltaic arrays, X-Ray sensors, display screens and photocopier drums.



  • Provides information on the amorphous semiconductors that are of most commercial interest
  • Presents the history of the commercial applications, the latest developments and future possibilities
 

Contents

1 Preparation of Amorphous Selenium Photoconductor Films by Vacuum Deposition
1
2 Molecular Structure of SeRich Amorphous Films
23
3 Effect of Thermal Evaporation Conditions on Structure and Structural Changes in Amorphous Arsenic Sulfides
47
4 The Big Invention of the Twentieth CenturyXerography
57
SeRich Amorphous Semiconductors
81
6 Effect of Antimony Alloying on Photoelectronic Properties of aSe
109
7 HighDefinition TV Pickup Tubes
133
8 XRay Photoconductors for Direct Conversion of Digital FlatPanel XRay Image Detectors
143
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About the author (2011)

Victor I. Mikla, PhD, is Chair of Physical & Mathematical Disciplines in the Department of Humanities & Natural Sciences at Uzhhgorod National University, Uzhhorod, Ukraine. Dr. Mikla specializes in photo-electronic materials and devices, and has published research articles widely on a broad range of inter-disciplinary topics including metastable states in amorphous chalcogenides, trap level spectroscopy, medical and non-medical imaging applications of amorphous semiconductors, xerographic spectroscopy, photo-induced & structural changes, and raman scattering. Dr. Victor V. Mikla is affiliated with the Physical & Mathematical Disciplines, Department of Humanities & Natural Sciences, Uzhhgorod National University, Uzhhgorod,Ukraine Dr. Victor V. Mikla is affiliated with the Physical & Mathematical Disciplines, Department of Humanities & Natural Sciences, Uzhhgorod National University, Uzhhgorod,Ukraine