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 A Student's Guide Through the Great Physics Texts by Tobias Nowozin
Cover of the book Machine Learning for Model Order Reduction by Tobias Nowozin
Cover of the book Artificial Intelligence for Knowledge Management by Tobias Nowozin
Cover of the book Growing up Working Class by Tobias Nowozin
Cover of the book Narcissism at Work by Tobias Nowozin
Cover of the book Data and Applications Security and Privacy XXIX by Tobias Nowozin
Cover of the book Pediatric Dermatopathology by Tobias Nowozin
Cover of the book Algorithms for Next-Generation Sequencing Data by Tobias Nowozin
Cover of the book Regional Assessment of Global Change Impacts by Tobias Nowozin
Cover of the book Explicit and Implicit Prosody in Sentence Processing by Tobias Nowozin
Cover of the book Community-Based Forest Management (CBFM) in Bangladesh by Tobias Nowozin
Cover of the book Advances in Artificial Intelligence by Tobias Nowozin
Cover of the book Probabilistic Safety Assessment of WWER440 Reactors by Tobias Nowozin
Cover of the book Process Analytics by Tobias Nowozin
Cover of the book LHC Phenomenology 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