We show that Coulomb interaction within a delta-layer of donors is governed by the neighbouring two-dimensional hole gas. It has been found experimentally that the interface luminescence band displays pronounced blue shift when the two-dimensional holes recombine with delta-donors. Our analysis confirms that uniform distribution of the delta-dopants provides adequate description of the energy shift versus excitation level.
|Title of host publication||9th Int. Symp. "Nanostructures: Physics & Technology", June 2001, St. Petersburg, Russia|
|Publication status||Published - 2001|
|Event||9th International Symposium "Nanostructures: Physics & Technology", June 18-22, 2001, St. Petersburg, Russia - St. Petersburg, Russian Federation|
Duration: 18 Jun 2001 → 22 Jun 2001
|Conference||9th International Symposium "Nanostructures: Physics & Technology", June 18-22, 2001, St. Petersburg, Russia|
|Period||18/06/01 → 22/06/01|