Optically Active Charge Traps and Chemical Defects in Semiconducting Nanocrystals Probed by Pulsed Optically Detected Magnetic Resonance

Nonfiction, Science & Nature, Technology, Electronics, Semiconductors, Nanotechnology
Cover of the book Optically Active Charge Traps and Chemical Defects in Semiconducting Nanocrystals Probed by Pulsed Optically Detected Magnetic Resonance by Kipp van Schooten, Springer International Publishing
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: Kipp van Schooten ISBN: 9783319005904
Publisher: Springer International Publishing Publication: July 17, 2013
Imprint: Springer Language: English
Author: Kipp van Schooten
ISBN: 9783319005904
Publisher: Springer International Publishing
Publication: July 17, 2013
Imprint: Springer
Language: English

Colloidal nanocrystals show much promise as an optoelectronics architecture due to facile control over electronic properties afforded by chemical control of size, shape, and heterostructure. Unfortunately, realizing practical devices has been forestalled by the ubiquitous presence of charge "trap" states which compete with band-edge excitons and result in limited device efficiencies. Little is known about the defining characteristics of these traps, making engineered strategies for their removal difficult.

This thesis outlines pulsed optically detected magnetic resonance as a powerful spectroscopy of the chemical and electronic nature of these deleterious states. Counterintuitive for such heavy atom materials, some trap species possess very long spin coherence lifetimes (up to 1.6 µs). This quality allows use of the trapped charge's magnetic moment as a local probe of the trap state itself and its local environment. Beyond state characterization, this spectroscopy can demonstrate novel effects in heterostructured nanocrystals, such as spatially-remote readout of spin information and the coherent control of light harvesting yield.

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

Colloidal nanocrystals show much promise as an optoelectronics architecture due to facile control over electronic properties afforded by chemical control of size, shape, and heterostructure. Unfortunately, realizing practical devices has been forestalled by the ubiquitous presence of charge "trap" states which compete with band-edge excitons and result in limited device efficiencies. Little is known about the defining characteristics of these traps, making engineered strategies for their removal difficult.

This thesis outlines pulsed optically detected magnetic resonance as a powerful spectroscopy of the chemical and electronic nature of these deleterious states. Counterintuitive for such heavy atom materials, some trap species possess very long spin coherence lifetimes (up to 1.6 µs). This quality allows use of the trapped charge's magnetic moment as a local probe of the trap state itself and its local environment. Beyond state characterization, this spectroscopy can demonstrate novel effects in heterostructured nanocrystals, such as spatially-remote readout of spin information and the coherent control of light harvesting yield.

More books from Springer International Publishing

Cover of the book Adaptive Sports Medicine by Kipp van Schooten
Cover of the book Recent Results on Nonlinear Delay Control Systems by Kipp van Schooten
Cover of the book Combinatorial Optimization and Applications by Kipp van Schooten
Cover of the book The Semantic Web – ISWC 2017 by Kipp van Schooten
Cover of the book Computer Methods in Biomechanics and Biomedical Engineering by Kipp van Schooten
Cover of the book The Rhetoric of Widening Participation in Higher Education and its Impact by Kipp van Schooten
Cover of the book Visualization Tools for Learning Environment Development by Kipp van Schooten
Cover of the book Hadronic Transport Coefficients from Effective Field Theories by Kipp van Schooten
Cover of the book Management Studies in South Africa by Kipp van Schooten
Cover of the book Metabolic Response of Slowly Absorbed Carbohydrates in Type 2 Diabetes Mellitus by Kipp van Schooten
Cover of the book Theory and Models for Cyber Situation Awareness by Kipp van Schooten
Cover of the book Application and Theory of Petri Nets and Concurrency by Kipp van Schooten
Cover of the book Simulation Studies of Recombination Kinetics and Spin Dynamics in Radiation Chemistry by Kipp van Schooten
Cover of the book Organic Amendments and Soil Suppressiveness in Plant Disease Management by Kipp van Schooten
Cover of the book Science in Metaphysics by Kipp van Schooten
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy