Title :
Enhanced quantum confined Stark effect in single core-shell semiconductor nanorods
Author :
Müller, J. ; Lupton, J.M. ; Rogach, A.L. ; Feldmann, J. ; Talapin, D.V. ; Weller, H.
Author_Institution :
Photonics & Optoelectron. Group, Ludwig-Maximilians-Univ., Munchen, Germany
Abstract :
Elongated asymmetric core-shell CdSe/CdS nanocrystals allow direct engineering of the electron-hole wavefunction interaction. Besides controlling the spontaneous emission rate this promotes the quantum confined Stark effect, providing insight into surface charge diffusion in single nanocrystals.
Keywords :
II-VI semiconductors; cadmium compounds; nanostructured materials; photoluminescence; quantum confined Stark effect; spontaneous emission; surface diffusion; CdSe-CdS; electron-hole wavefunction interaction; elongated asymmetric core-shell CdSe-CdS nanocrystals; photoluminescence spectra; quantum confined Stark effect; single core-shell semiconductor nanorods; spontaneous emission rate; surface charge diffusion; Carrier confinement; Charge carrier processes; Electric variables measurement; Energy measurement; Nanocrystals; Optical devices; Optical materials; Potential well; Stark effect; Stimulated emission;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2005. QELS '05
Print_ISBN :
1-55752-796-2
DOI :
10.1109/QELS.2005.1548745
