This book presents the latest understanding of the solid physics, electronic implications and practical applications of the unique spontaneous or pyro-electric polarization charge of hexagonal semiconductors, and the piezo-electric effects in thin film hetero-structures, which are used in wide forbidden band gap sensor, electronic and opto-electronic semiconductor devices. The book covers ab initio theory of polarization in cubic and hexagonal semiconductors, growth of thin film GaN, and GaN/AlGaN GaAlN/ AlGaInN and other nitride, and SiC hetero-structures; graded structures for distributed piezo-electric charge, electrical and electronic characterization of polarization charge and charge distribution by scanning-probe spectroscopy, gauge factors and strain effects.

Describes in detail the broad reaching complexity and greatly increased design versatility allowed by polarization effects in high power electronic devices Authored primarily by the physics, applied physics and electrical engineering professors and students who worked for 5 years under the "Polarization Effects in Semiconductors" DOD funded Multi Disciplinary University Research Initiative Includes supplementary material: sn.pub/extras

Inhalt
Theoretical Approach to Polarization Effects in Semiconductors.- Polarization Induced Effects in GaN-based Heterostructures and Novel Sensors.- Lateral and Vertical Charge Transport in Polar Nitride Heterostructures.- Polarization Effects on Low-Field Transport & Mobility in III-V Nitride HEMTs.- Local Polarization Effects in Nitride Heterostructures and Devices.- Polarization in Wide Bandgap Semiconductors and their Characterization by Scanning Probe Microscopy.- Functionally Graded Polar Heterostuctures: New Materials for Multifunctional Devices.- Polarization in GaN Based Heterostructures and Heterojunction Field Effect Transistors (HFETs).- Effects of Polarization in Optoelectronic Quantum Structures.