Self-Organized Quantum Dots for Memories

Electronic Properties and Carrier Dynamics

Nonfiction, Science & Nature, Technology, Electronics, Semiconductors, Nanotechnology
Cover of the book Self-Organized Quantum Dots for Memories by Tobias Nowozin, Springer International Publishing
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: Tobias Nowozin ISBN: 9783319019703
Publisher: Springer International Publishing Publication: October 1, 2013
Imprint: Springer Language: English
Author: Tobias Nowozin
ISBN: 9783319019703
Publisher: Springer International Publishing
Publication: October 1, 2013
Imprint: Springer
Language: English

Today’s semiconductor memory market is divided between two types of memory: DRAM and Flash. Each has its own advantages and disadvantages. While DRAM is fast but volatile, Flash is non-volatile but slow. A memory system based on self-organized quantum dots (QDs) as storage node could combine the advantages of modern DRAM and Flash, thus merging the latter’s non-volatility with very fast write times.

This thesis investigates the electronic properties of and carrier dynamics in self-organized quantum dots by means of time-resolved capacitance spectroscopy and time-resolved current measurements. The first aim is to study the localization energy of various QD systems in order to assess the potential of increasing the storage time in QDs to non-volatility. Surprisingly, it is found that the major impact of carrier capture cross-sections of QDs is to influence, and at times counterbalance, carrier storage in addition to the localization energy. The second aim is to study the coupling between a layer of self-organized QDs and a two-dimensional hole gas (2DHG), which is relevant for the read-out process in memory systems. The investigation yields the discovery of the many-particle ground states in the QD ensemble. In addition to its technological relevance, the thesis also offers new insights into the fascinating field of nanostructure physics.

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

Today’s semiconductor memory market is divided between two types of memory: DRAM and Flash. Each has its own advantages and disadvantages. While DRAM is fast but volatile, Flash is non-volatile but slow. A memory system based on self-organized quantum dots (QDs) as storage node could combine the advantages of modern DRAM and Flash, thus merging the latter’s non-volatility with very fast write times.

This thesis investigates the electronic properties of and carrier dynamics in self-organized quantum dots by means of time-resolved capacitance spectroscopy and time-resolved current measurements. The first aim is to study the localization energy of various QD systems in order to assess the potential of increasing the storage time in QDs to non-volatility. Surprisingly, it is found that the major impact of carrier capture cross-sections of QDs is to influence, and at times counterbalance, carrier storage in addition to the localization energy. The second aim is to study the coupling between a layer of self-organized QDs and a two-dimensional hole gas (2DHG), which is relevant for the read-out process in memory systems. The investigation yields the discovery of the many-particle ground states in the QD ensemble. In addition to its technological relevance, the thesis also offers new insights into the fascinating field of nanostructure physics.

More books from Springer International Publishing

Cover of the book Exploring the Role of Strategic Intervention in Form-focused Instruction by Tobias Nowozin
Cover of the book Control Strategies for Advanced Driver Assistance Systems and Autonomous Driving Functions by Tobias Nowozin
Cover of the book Surgical Critical Care Therapy by Tobias Nowozin
Cover of the book Paradigms and Theories Influencing Policies in the South African and International Water Sectors by Tobias Nowozin
Cover of the book The Quest for Subsidy Reforms in the Middle East and North Africa Region by Tobias Nowozin
Cover of the book Construction Dispute Research by Tobias Nowozin
Cover of the book Ecological Soil-Cement Bricks from Waste Materials by Tobias Nowozin
Cover of the book Fractional Order Darwinian Particle Swarm Optimization by Tobias Nowozin
Cover of the book Producing Bias-Free Policing by Tobias Nowozin
Cover of the book Assessing Contexts of Learning by Tobias Nowozin
Cover of the book Romanian Studies in Philosophy of Science by Tobias Nowozin
Cover of the book Creative Contradictions in Education by Tobias Nowozin
Cover of the book Nonequilibrium Dynamics of Collective Excitations in Quantum Materials by Tobias Nowozin
Cover of the book Clinical Cases in Early Orthodontic Treatment by Tobias Nowozin
Cover of the book Primer on Client-Side Web Security by Tobias Nowozin
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