Nature of the Positron State in CdSe Quantum Dots

Previous studies have shown that positron-annihilation spectroscopy is a highly sensitive probe of the electronic structure and surface composition of ligand-capped semiconductor quantum dots (QDs) embedded in thin films. The nature of the associated positron state, however, whether the positron is...

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Veröffentlicht in:	Physical review letters 2018-08, Vol.121 (5), p.057401-057401, Article 057401
Hauptverfasser:	Shi, Wenqin, Callewaert, Vincent, Barbiellini, Bernardo, Saniz, Rolando, Butterling, Maik, Egger, Werner, Dickmann, Marcel, Hugenschmidt, Christoph, Shakeri, Behtash, Meulenberg, Robert W, Brück, Ekkes, Partoens, Bart, Bansil, Arun, Eijt, Stephan W H
Format:	Artikel
Sprache:	eng
Schlagworte:	Cadmium selenides Composition Electronic structure Electrons Lifetime Ligands Positrons Quantum dots Service life assessment Spectroscopic analysis Spectrum analysis Thin films
Online-Zugang:	Volltext
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