Structural, optical and spectral behaviour of InAs-based quantum dot heterostructures : applications for high-performance infrared photodetectors

Description

This book explores the effects of growth pause or ripening time on the properties of quantum dots(QDs). It covers the effects of post-growth rapid thermal annealing (RTA) treatment on properties of single layer QDs. The effects of post-growth rapid thermal annealing (RTA) treatment on properties of single layer QDs are discussed. The book offers insight into InAs/GaAs bilayer QD heterostructures with very thin spacer layers and discusses minimum spacer thickness required to grow electronically coupled bilayer QD heterostructures. These techniques make bilayer QD heterostructures a better choice over the single layer and uncoupled multilayer QD heterostructure. Finally, the book discusses sub-monolayer (SML) growth technique to grow QDs. This recent technique has been proven to improve the device performance significantly. The contents of this monograph will prove useful to researchers and professionals alike. . Read more... Abstract: This book explores the effects of growth pause or ripening time on the properties of quantum dots(QDs). It covers the effects of post-growth rapid thermal annealing (RTA) treatment on properties of single layer QDs. The effects of post-growth rapid thermal annealing (RTA) treatment on properties of single layer QDs are discussed. The book offers insight into InAs/GaAs bilayer QD heterostructures with very thin spacer layers and discusses minimum spacer thickness required to grow electronically coupled bilayer QD heterostructures. These techniques make bilayer QD heterostructures a better choice over the single layer and uncoupled multilayer QD heterostructure. Finally, the book discusses sub-monolayer (SML) growth technique to grow QDs. This recent technique has been proven to improve the device performance significantly. The contents of this monograph will prove useful to researchers and professionals alike Front Matter ....Pages i-xxiii Introduction to Infrared Detectors and Quantum Dots (Saumya Sengupta, Subhananda Chakrabarti)....Pages 1-11 Structural, Optical and Spectral Characterization of Single-Layer QDIPs (Saumya Sengupta, Subhananda Chakrabarti)....Pages 13-23 Structural and Optical Characterization of Bilayer QD Heterostructures (Saumya Sengupta, Subhananda Chakrabarti)....Pages 25-42 Optical and Spectral Characterization of Sub-monolayer QDIPs (Saumya Sengupta, Subhananda Chakrabarti)....Pages 43-58 Back Matter ....Pages 59-59