K. Yamanaka et al., LIGHT-EMISSION FROM INDIVIDUAL INAS GAAS SELF-ASSEMBLED QUANTUM DOTS EXCITED BY TUNNELING CURRENT INJECTION/, Solid-state electronics, 42(7-8), 1998, pp. 1079-1082
Emission from individual InAs quantum dots by tunneling current inject
ion using a scanning tunneling microscope (STM) is reported. By scanni
ng the STM tip above the self-assembled InAs quantum dot structures, a
spatially resolved scanning tunneling luminescence (STL) image was me
asured, which contained some peaks originating from InAs quantum dots.
The width of these peaks are of the same size as the average dot size
, suggesting that the resolution of this method is much higher than 20
nm. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.