Size-Dependent Energy Levels of InSb Quantum Dots Measured by Scanning Tunneling Spectroscopy
Abstract
The electronic structure of single InSb quantum dots (QDs) with diameters between 3 and 7 nm was investigated using atomic force microscopy (AFM) and scanning tunneling spectroscopy (STS). In this size regime, InSb QDs show strong quantum confinement effects which lead to discrete energy levels on both valence and conduction band states. Decrease of the QD size increases the measured band gap and the spacing between energy levels. Multiplets of...
Paper Details
Title
Size-Dependent Energy Levels of InSb Quantum Dots Measured by Scanning Tunneling Spectroscopy
Published Date
Dec 22, 2014
Journal
Volume
9
Issue
1
Pages
725 - 732
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