Project Details
Projekt
FOR 730: Positioning of Single Nanostructures - Single Quantum Devices
Subject Area
Physics
Term
from 2006 to 2012
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 21644817
The unique success story of semiconductor physics and technology relies on the ability to highly integrate micro- and nanometer -sized functional units on a single chip. Within the last few years single nanostructures, e.g., individual and coupled pairs of QDs, single molecules and individual doping atoms moved more and more into the focus of many research groups to study the exciting physics and to exploit their tremendous potential for device applications. For example, single-electron and single-photon devices have been realised using quantum dots, molecules and doping atoms as active elements.
In most of the previous work, the position of the nanostructure was random due to the self-organised growth process or unselective deposition methods, e.g., spin coating on unstructured substrates. In fact, the full advantage of their superior properties can be utilised if a controlled positioning or growth of the nanostructure inside a more complex device structure can be realised, thereby defining precise coupling between the microscopic nanostructure and the macroscopic periphery. It will be our prime task to investigate and develop methods which allow the controlled positioning of single nanostructures in basic electronic and optoelectronic nano-devices such as single photon sources, coupled quantum gates and tunnelling diodes.
In most of the previous work, the position of the nanostructure was random due to the self-organised growth process or unselective deposition methods, e.g., spin coating on unstructured substrates. In fact, the full advantage of their superior properties can be utilised if a controlled positioning or growth of the nanostructure inside a more complex device structure can be realised, thereby defining precise coupling between the microscopic nanostructure and the macroscopic periphery. It will be our prime task to investigate and develop methods which allow the controlled positioning of single nanostructures in basic electronic and optoelectronic nano-devices such as single photon sources, coupled quantum gates and tunnelling diodes.
DFG Programme
Research Units
Projects
- Asymmetric-coupled vertical quantum dots (ACVQD) - Towards Light controlled quantum gate (Applicants Jetter, Michael ; Schweizer, Heinz )
- Ge/Si quantum dots in the sub 20nm regime - exact positioning and electrical functionalisation (Applicants Giessen, Harald ; Schmidt, Oliver G. ; Schulze, Jörg ; Vogelgesang, Ralf )
- Koordinatorprojekt (Applicant Michler, Peter )
- Lateral Quantum Dot molecule - towards electric field controlled quantum gate (Applicants Michler, Peter ; Rastelli, Armando )
- Plasmonic coupling of individual quantum dots (Applicants Giessen, Harald ; Vogelgesang, Ralf )
- Positioning of single quantum dots inside microcavities - coupling of individual quantum dots (Applicants Michler, Peter ; Schmidt, Oliver G. )
- Single molecule electroluminescence (Applicants Kuhnke, Klaus ; Wrachtrup, Jörg )
- Single quantum dot resonant tunnelling diodes and their integration (Applicant Costantini, Giovanni )
- Ultrafast spectroscopy of coupled quantum dots: quantum dot - particle plasmon and quantum dot - quantum dot coupling (Applicants Lippitz, Markus ; Rastelli, Armando )
Spokesperson
Professor Dr. Peter Michler
