Functional and Smart Materials

3   Amorphous Semiconductors

Past, Present, and Future

Neeraj Mehta

Banaras Hindu University

CONTENTS

3.1     Background of Problem

3.1.1     Distinction between Crystalline and Amorphous Semiconductors 

3.1.2     Analogy between Amorphous and Crystalline Materials

3.1.3     Techniques Used to Distinguish between Amorphous and Crystalline Materials

3.1.4     Classifications of Amorphous Semiconductors

3.1.4.1     Covalent Amorphous Semiconductors

3.1.4.2     Ionic Amorphous Solids

3.1.4.3     Metallic Amorphous Solids

3.2     Band Models for Amorphous Semiconductors

3.2.1     Cohen-Fritzsche-Ovshinsky (CFO) Model

3.2.2     Davis and Mott Model

3.2.3     Mott, Davis and Street Model

3.3     Preparation of Amorphous Semiconductors 

3.3.1     Quenching ...