Project Details
Projekt
Wiring quantum dots - phase separation inducing new functionality
Applicant
Professor Dr. Carsten Ronning
Subject Area
Experimental Condensed Matter Physics
Term
from 2011 to 2015
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 195150566
Today, most modern technology relies mainly on materials with reduced dimensionalities, such as thin films (2D), nanowires (1D), and quantum dots (0D). An extreme success in synthesis, characterization, and application of the respective – but separated – material classes has been achieved within the past 30 years.In this research proposal we merge: (a) three young and important research groups out of Switzerland, Austria and Germany, as well as (b) two of the most important nanostructures for future applications: quantum dots and nanowires, which will result into nano-materials with superior functionality. The synthesis techniques will be based on the use of phase separation as a vehicle for creating inhomogeneities within particular nanowire materials. Three promising approaches will be investigated within our research: (i) synthesis of stochiometrically unstable compounds during growth, (ii) subsequent ion implantation beyond solubility limits, and (iii) controlled phase conversion by diffusion. The resulting “wired quantum dots” will need a comprehensive structural characterization using e.g. electron microscopy, X-Ray diffraction and Raman scattering so that the optimum synthesis parameters can be identified. The main focus of this project is the investigation of the correlation between the structure and functionality of the wired quantum dots, in order to enable novel electronic and photonic devices.A long term goal of the project includes indeed the realization of a proto-type light emitting diode device and an electrical memory transistor with high-performance properties.
DFG Programme
Research Grants
International Connection
Austria, Switzerland
