Title :
Spatial diffusion of carriers in a quantum dot system grown by shadow mask controlled epitaxy
Author :
Mackowski, Seb ; Gurung, T. ; Jackson, R.E. ; Smith, L.M. ; Schallenberg, T. ; Brunner, K. ; Molenkamp, L.W.
Author_Institution :
Dept. of Phys., Cincinnati Univ., OH
Abstract :
We use slit-confocal microscopy to study spatial diffusion of carriers between quantum dot ensembles coupled through a wide wire-like barrier. When carriers are photo-excited above in this barrier the diffusion on a scale of 5 microns has been observed
Keywords :
II-VI semiconductors; carrier mobility; masks; molecular beam epitaxial growth; optical microscopy; photoexcitation; photoluminescence; semiconductor quantum dots; photoexcitation; quantum dot ensembles; shadow mask controlled epitaxy; slit-confocal microscopy; spatial carrier diffusion;
Conference_Titel :
Quantum Electronics Conference, 2004. (IQEC). International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-778-4
