Semiconducting Chalcogenide Glass I : Glass

Chalcogenide glass is made up of many elements from the Chalcogenide group. The glass is transparent to infrared light and is useful as a semiconductor in many electronic devices. For example, chalcogenide glass fibers are a component of devices used to perform laser surgery. This book is a comprehensive survey of the current state of science and technology in the field of chalcogenide semiconductor glasses. While the majority of the book deals with properties of chalcogenide glass, chapters also deal with industrial applications, synthesis and purification of chalcogenide glass, and glass structural modification.

List of Contributors

xi

Preface

xiii

Glass-Formation in Chalcogenide Systems and Periodic System

1

(50)

V. S. Minaev

S. P. Timoshenkov

Introduction

1

(1)

Main Regularity of Glass-Formation in Chalcogenide Systems and Its Infringements

2

(2)

Criteria of Glass-Formation. Factors Affecting Glass-Formation

4

(5)

Structural--Energetic Concept of Glass-Formation in Chalcogenide Systems

9

(34)

Glass-Formation and Phase Diagrams of Chalcogenide Glasses

10

(2)

Qualitative Criterion of Glass-Formation

12

(3)

Quantitative Criterion of Glass-Formation

15

(2)

Glass-Formation of Chalcogens. Glass-Formation in Binary Chalcogen Systems

17

(2)

Glass-Formation in Binary Chalcogenide Systems

19

(14)

Is the Liquidus Temperature Effect Always Effective?

33

(2)

Some Energetic and Kinetic Aspects of Glass-Formation and Criteria of Sun--Rawson and Sun--Rawson--Minaev

35

(2)

Periodic Law and Glass-Formation in Chalcogenide Systems

37

(6)

Conclusion

43

(8)

References

45

(6)

Atomic Structure and Structural Modification of Glass

51

(46)

A. Popov

Structural Characteristics of Solid

51

(1)

Short-Range and Medium-Range Orders

52

(3)

Investigation Methods of Disordered System Structure

55

(11)

Experimental Methods

55

(3)

Atomic Structure Simulation

58

(8)

The Results of Structural Research of Glassy Semiconductors

66

(16)

Atomic Structure of Glassy Selenium

66

(12)

Atomic Structure of Chalcogenide Glasses

78

(4)

Structural Modification of Non-Crystalline Semiconductors

82

(15)

Levels of Structural Modification

82

(5)

Structural Changes at the Short-Range Order Level

87

(1)

Structural Changes at the Medium-Range Order and Morphology Levels

87

(3)

Structural Changes at the Defect Subsystem Level

90

(1)

Correlation Between Structural Modification and Stability of Material Properties and Device Parameters

91

(1)

References

92

(5)

Eutectoidal Concept of Glass Structure and Its Application in Chalcogenide Semiconductor Glasses

97

(42)

V. A. Funtikov

The Role of Stable Electronic Configurations in the Creation of a Glass-Forming Ability of Chalcogenide Alloys

97

(7)

Features of Chemical Bonds in Chalcogenide Vitreous Semiconductors

104

(7)

Geometrical and Topological Aspects of Structure Formation in Chalcogenide Semiconductor Glasses

111

(3)

Stable and Metastable Phase Equilibriums in Chalcogenide Systems

114

(7)

Eutectoidal Model of Glassy State of Substance

121

(3)

Experimental Proof of the Eutectoidal Nature of Glasses

124

(4)

Physicochemical Analysis of Vitreous Semiconductor Chalcogenide Systems

128

(11)

References

134

(5)

Concept of Polymeric Polymorphous-Crystalloid Structure of Glass and Chalcogenide Systems: Structure and Relaxation of Liquid and Glass

139

(42)

V. S. Minaev

General Observations on Glass Formation

139

(1)

Main Concept of Glass Structure

140

(1)

Relation Between Glass Formation and Polymorphism in One-Component Glass

141

(2)

Short-Range Order Definition and Its Consequences

143

(3)

Main Theses of the Concept of Polymeric Polymorphous-Crystalloid Structure of One-Component Glass and Glass-Forming Liquid (CPPCSGL)

146

(2)

Influence of Polymorphous-Crystalloid Structure on Properties and Relaxation Processes in One-Component Chalcogenide Glass and Glass-Forming Liquid

148

(15)

Relaxation Processes in One-Component Condensed Substance---General Considerations

149

(1)

Germanium Diselenide GeSe2

150

(8)

Chalcogenides GeS2, SiSe2, SiS2. Relaxation Processes in Glass under Influence of Photo-Irradiation

158

(1)

Arsenic Selenide As50Se50. Relaxation Processes

159

(1)

Selenium

160

(3)

Nanoheteromorphism in GE-SE and S--SE Glass-Forming Systems

163

(9)

Intermediate-Range and Short-Range Ordering in Glass-Forming System GeSe2--Se

164

(4)

Intermediate-Range and Short-Range Ordering in Glass-Forming System S--Se

168

(2)

Some General Regularities of Glass Structure in Binary Glass-Forming Systems

170

(2)

Conclusions

172

(9)

References

175

(6)

Photo-Induced Transformations in Glass

181

(34)

Mihai Popescu

Irreversible Modifications

182

(13)

Photo-Physical Transformations

182

(6)

Photo-Chemical Modifications

188

(7)

Reversible Modifications

195

(20)

Photodarkening and Photobleaching

196

(8)

Other Reversible Photo-Induced Effects

204

(5)

References

209

(6)

Radiation-Induced Effects in Chalcogenide Vitreous Semiconductors

215

(46)

Oleg I. Shpotyuk

Introduction

215

(1)

Historical Overview of the Problem

216

(3)

Methodology of RIEs Observation

219

(2)

Remarkable Features of RIEs

221

(20)

Sharply Defined Changes of Physical Properties

221

(7)

Dose Dependence

228

(1)

Thickness Dependence

229

(1)

Thermal Threshold of Restoration

230

(1)

Reversibility

231

(1)

Compositional Dependence

232

(6)

Post-irradiation Instability

238

(3)

Microstructural Nature of RIEs

241

(12)

On the Origin of Reversible Radiation-Structural Transformations

242

(6)

On the Origin of Irreversible Radiation-Structural Transformations

248

(5)

Some Practical Applications of RIEs

253

(2)

ChVS-Based Optical Dosimetric Systems

254

(1)

Radiation Modification of ChVSs Physical Properties

254

(1)

Final Remarks

255

(6)

References

255

(6)

Index

261

(8)

Contents of Volumes in This Series

269

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Semiconducting Chalcogenide Glass I : Glass Formation, Structure, and Simulated Transformations in Chalcogenide Glasses

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