The electronic properties of self-assembled quantum dots have been studied by means of optical and tunnelling spectroscopy. The effect of confining barrier composition and design on the thermal behaviour of the dot optical properties is reported and exploited for the realisation of quantum dot based lasers. Tunnel current spectroscopy through a single discrete quantum dot state is used to investigate the electronic properties of an adjacent two-dimensional electron gas, including the Landau level density of stales and many-body enhanced g-factor in the presence of a magnetic field.
Optical and resonant tunnelling spectroscopy of self-assembled quantum dot systems / Polimeni, Antonio; Amalia, Patane; Andrew, Thornton; Thomas, Ihn; Laurence, Eaves; Peter, Main; Mohamed, Henini; Geoffrey, Hill. - In: JAPANESE JOURNAL OF APPLIED PHYSICS. PART 1, REGULAR PAPERS & SHORT NOTES. - ISSN 0021-4922. - STAMPA. - 38:Part 1, No. 1B(1999), pp. 535-538. (Intervento presentato al convegno 1998 International Symposium on Formation, Physics and Device Application of Quantum Dot Structures (QDS 98) tenutosi a SAPPORO, JAPAN nel MAY 31-JUN 04, 1998) [10.1143/jjap.38.535].
Optical and resonant tunnelling spectroscopy of self-assembled quantum dot systems
POLIMENI, Antonio;
1999
Abstract
The electronic properties of self-assembled quantum dots have been studied by means of optical and tunnelling spectroscopy. The effect of confining barrier composition and design on the thermal behaviour of the dot optical properties is reported and exploited for the realisation of quantum dot based lasers. Tunnel current spectroscopy through a single discrete quantum dot state is used to investigate the electronic properties of an adjacent two-dimensional electron gas, including the Landau level density of stales and many-body enhanced g-factor in the presence of a magnetic field.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
