Self-Organized Quantum Dots for Memories

Name: Self-Organized Quantum Dots for Memories
Brand: Springer International Publishing AG
SKU: 9783319019697
Price: 550.51 RON
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Electronic Properties and Carrier Dynamics

Autor: Tobias Nowozin

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Editura: Springer International Publishing AG

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Today s semiconductor memory market is divided between two types of memory: DRAM and Flash. Each has...

Informații despre carte

Autor

Tobias Nowozin

Limbă

engleză

Legare

Carte - Copertă tare

Publicat

2013

Pagini

153

EAN

9783319019697

ISBN

3319019694

Enbook ID

02006209

Editura

Springer International Publishing AG

Greutate

3849

Dimensiuni

155 x 235 x 15

Descriere completă

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.§

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Self-Organized Quantum Dots for Memories

Electronic Properties and Carrier Dynamics

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