Amorphous Semiconductors: Structural, Optical, and Electronic Properties [Hardcover]

Amorphous semiconductors are subtances in the amorphous solid state that have the properties of a semiconductor and which are either covalent or tetrahedrally bonded amorphous semiconductors or chelcogenide glasses.

• Developed from both a theoretical and experimental viewpoint
• Deals with, amongst others, preparation techniques, structural, optical and electronic properties, and light?induced phenomena
• Explores different types of amorphous semiconductors?including amorphous silicon, amorphous semiconducting oxides and chalcogenide glasses
• Applications include solar cells, thin film transistors, sensors, optical memory devices and flat screen devices including televisions

Series Preface xi

Preface xiii

1 Introduction 1

1.1 General Aspects of Amorphous Semiconductors 1

1.2 Chalcogenide Glasses 3

1.3 Applications of Amorphous Semiconductors 3

References 3

2 Preparation Techniques 5

2.1 Growth of aSi:H Films 5

2.1.1 PECVD Technique 5

2.1.2 HWCVD Technique 6

2.2 Growth of Amorphous Chalcogenides 6

References 8

3 Structural Properties of Amorphous Silicon and Amorphous Chalcogenides 11

3.1 General Aspects 11

3.1.1 Definitions of Crystalline and Noncrystalline 11

3.2 Optical Spectroscopy 12

3.2.1 Raman Scattering 12

3.2.2 Infrared Absorption 13

3.3 Neutron Diffraction 15

3.3.1 Diffraction Measurements on Amorphous Silicon 17

3.3.2 Diffraction Measurements on Hydrogenated Amorphous Silicon 18