Article ID Journal Published Year Pages File Type
9789683 Physica E: Low-dimensional Systems and Nanostructures 2005 8 Pages PDF
Abstract
We analyze the influence of the characteristics of the STM-tip (applied voltage, tip radius) on the electroluminescence spectra from an STM-tip-induced quantum dot. We find that positions of electroluminescence peaks, attributed to the electron-hole recombination in the quantum dot, are very sensitive to the characteristics of the tip, namely increasing voltage on the STM-tip results in a red shift of the electroluminescence peaks, while the peak positions as a function of the tip radius reveal a non-monotonous behavior.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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