Ebook: Physics and Applications of Non-Crystalline Semiconductors in Optoelectronics

The Workshop on Physics and Application of Non-crystalline Semiconductors in Optoelectronics was held from 15 to 17 October 1996 in Chisinau. republic of Moldova and was devoted to the problems of non-crystalline semiconducting materials. The reports covered two mjlin topics: theoretical basis of physics of non -crystalline materials and experimental results. In the framework of these major topics there were treated many subjects. concerning the physics of non-crystalline semiconductors and their specific application: -optical properties of non-crystalline semiconductors; -doping of glassy semiconductors and photoinduced effects in chalcogenide glasses and their application for practical purposes; -methods for investigation of the structure in non-crystalline semiconductors -new glassy materials for IR trasmittance and optoelectronics. Reports and communications were presented on various aspects of the theory. new physical principles. studies of the atomic structure. search and development of optoelectronics devices. Special attention was paid to the actual subject of photoinduced transformations and its applications. Experimental investigations covered a rather wide spectrum of materials and physical phenomena. As a novel item it is worth to mention the study of nonlinear optical effects in amorphous semiconducting films. The third order optical non­ linearities. fast photoinduced optical absorption and refraction. acusto-optic effects recently discovered in non-crystalline semiconductors could potentially be utilised for optical signal processing. The important problems of photoinduced structural transformations and related phenomena. which are very attractive and actual both from the scientific and practical points of view. received much attention in discussions at the conference.

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Content:
Front Matter....Pages i-xii
Measurements of Third-Order Nonlinearities in Amorphous Materials....Pages 1-16
Photoinduced Phenomena In Chalcogenide Glass Semiconductors....Pages 17-30
Electronic Micro-Fabrication of Chalcogenide Glass....Pages 31-44
Metal-Photodissolution in Amorphous Semiconductors of The As-S System....Pages 45-60
Amorphous superlattices of chalcogenides....Pages 61-75
Density of Localized States in the Gap of Non-Crystalline Semiconductors....Pages 77-91
Photo Structural Phase Transitions in Amorphous Chalcogenides:Basic Principles and Applications in Holography and Optical Information Processing....Pages 93-108
Thermally and Photo Induced Phenomena in Amorphous Chalcogenides....Pages 109-121
Photoinduced Effects in Amorphous Chalcogenides....Pages 123-139
CW and Pulsed Investigation of Photoinduced Darkening in As2S3 Amorphous Thin Films....Pages 141-153
Optical Glasses for Infrared Transmitttance Synthesis and Properties of Chalcogenide Glasses....Pages 155-169
New Chalcohalide Glasses as Promising Materials for Optoelectronics....Pages 171-179
Contributions to Self-Diffraction and Optical Phase Conjugation in Semiconductors....Pages 181-200
Doping of Chalcogenide Glasses of Semiconductors....Pages 201-214
Medium Range Order in Chalcogenide Glasses....Pages 215-232
Simple Theory of Soft Potentials and Negative - U Centers in Chalcogenides....Pages 233-241
Optical Absorbability in Ternary Ge-As-S Glasses and Some Possibility of its Applications....Pages 243-248
Photoinduced Effects in Chalcogenide Glasses and Their Application for Optical Recording....Pages 249-257
Amorphography of Chaos and Order in Isotropic and Anisotropic Glasses....Pages 259-274
Photoinduced Structural Changes in Amorphous Chalcooenides Studied By Raman Spectroscopy....Pages 275-290
Infrared Reflectance Investigation of the Structure of xSb2S3.(l-x)As2S3 Glasses....Pages 291-305
Structure of Potassium Germanate Glasses By Vibrational Spectroscopy....Pages 307-315
A Review of Amorphous Chalcogenides as Materials For Infrared Bulk Acousto-Optic Devices....Pages 317-325
The Possibilities to Use The Intrinsic Defect’s Optical Properties for Optoelectronics in Fused Silica....Pages 327-336
Amorphous Silicon Photodetectors for Oxidised Porous Silicon Based optical Interconnections.....Pages 337-346
Photoluminescence in Hydrogenated Amorphous Carbon....Pages 347-359
Optical Elements for Sensing and Communication....Pages 361-378
New Materials For Solar Energy Conversion....Pages 379-389
Experimental Investigation of Subsurface Structure and Surface Symmetry of Disordered Semiconductors....Pages 391-401
Multiquantum Processes in Solids. New Aspects....Pages 403-415
Bose-Einstein Condensation of Excitons in the Presence of Laser Radiation....Pages 417-429
Thermal, Plasma and Photoinduced Microstructural Changes on a-Sic:H Films....Pages 431-444
Some Electrophysical Properties of C60 Thin Films....Pages 445-450
Deposition of CuInSe2 thin Films By Pulsed Electron Beam Ablation....Pages 451-451
Optical Properties of Ge-As-Se Glasses and Films on Their Basis....Pages 452-452
Optical Registration Media With Near Ir Sensibility For Xerography....Pages 453-453
Nonlinear Propagation of Strong Laser Pulses in Non-Crystalline Semiconductor Films....Pages 454-454
The Peculiarities of Photoinduced Absorption in Chalcogenide Glass Fibres....Pages 455-455
Mass-Spectrometric Investigation of the Photostructural Changes in Chalcogenide Glasses....Pages 456-456
Cooperative Two-Photon Emission in the Microcavity....Pages 457-457
A Layered-Inhomogeneous Model of the Structure of Vitreous Ges2 - Based Vacuum Condensates....Pages 458-458
Electrical Properties of p-Si/?-C:H Heterojunctions....Pages 459-459
Electromotive Force in the Structures Metal-Gradient Films <AS2S3-Al(Bi)>-Metal....Pages 460-460
Thermostimulated Luminescence of Amorphous Oxide Films of Aluminium....Pages 461-461
Low Frequency Raman Spectra, Sizes of Fractals and Longitudinal Elastic Modules in Wide Gap Chalcogenide Glassy Semiconductors....Pages 462-462
Optical Bistability in Nonlinear Interaction of Short Light Pulses With Thin-Film Resonant Structure....Pages 463-463
Recording Equipment Based on Photothermoplastic Medium For Space and Airborn Applications....Pages 464-464
Photothermoplastic Media For Non-Destructive Control Systems....Pages 465-465
Investigation of Integrated-Optics Devices on the Basis of thin Films of Chalcogenide Glassy Semiconductors....Pages 466-466
Reduced Temperature Growth and Characterization of InP /SrF2 / InP(100) Heterostructure....Pages 467-467
Fresnel Zone Plates on Chalcogenide Glass Without Chromatical Aberrations....Pages 468-468
Bipolar Transport and Bipolar Photoconductivity in Amorphous Films Containing Arsenic Chalcogenide Vitreous Semiconductors....Pages 469-470
Electron-Induced Anisotropy in Chalcogenide Glasses: State of the Problem, Physical Features and Microstructural Mechanism....Pages 471-471
Sub-Band-Gap Absorption in As2se3 Films From Photocapacitance Spectroscopy....Pages 472-472
Room-Temperature Photoluminescence of Amorphous Hydrogenated Silicon Carbide Doped With Erbium....Pages 473-473
Back Matter....Pages 474-474
....Pages 475-481