Optical Absorption of Impurities and Defects in Semiconducting Crystals

This volume outlines how absorption spectroscopy is important to the investigation of deep-level centers introduced in semiconductors and insulators. It also explains how vibrational spectroscopy determines the atomic structure and symmetry of complexes.

This book outlines, with the help of several specific examples, the important role played by absorption spectroscopy in the investigation of deep-level centers introduced in semiconductors and insulators like diamond, silicon, germanium and gallium arsenide by high-energy irradiation, residual impurities, and defects produced during crystal growth. It also describes the crucial role played by vibrational spectroscopy to determine the atomic structure and symmetry of complexes associated with light impurities like hydrogen, carbon, nitrogen and oxygen, and as a tool for quantitative analysis of these elements in the materials.

Reviews optical absorption of impurities and defects in semiconductors Establishes a correlation between electronic, vibrational spectroscopy and electron spin resonance Displays numerous spectroscopic data on isotope effects in quasimonoisotopic crystals Discusses spectroscopic results in natural and synthetic diamond Includes supplementary material: sn.pub/extras

Auteur

Dr. Bernard Pajot has been "Directeur de Recherches au Centre National de la Recherche Scientifique (CNRS)" since 1985.

Prof. Bernard Clerjaud is Full Professor at the Université Pierre et Marie Curie and has been at the Institut des NanoSciences de Paris since 1985.

Contenu

Foreword.- Preface.- Notations and symbols.- Introduction.- Bulk optical absorption.- Instrumental methods for absorption spectroscopy.- Absorption of deep centres and bound excitons.- Vibrational absorption of substitutional atoms and related centres.- Vibrational absorption of interstitial atoms and related centres.- Vibrational absorption III.- Quasi substitutional atoms and related centres.- Vibrational spectra related to hydrogen.