Giant Stark effect in the emission of single semiconductor quantum dots

Details Giant Stark effect in the emission of single semiconductor quantum dots Giant Stark effect in the emission of single semiconductor quantum dots

2010-11-10

arxiv.org/abs/1011.2436v1

Applied Physics Letters, 97, 031104 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We study the quantum-confined Stark effect in single InAs/GaAs quantum dots embedded within a AlGaAs/GaAs/AlGaAs quantum well. By significantly increasing the barrier height we can observe emission from a dot at electric fields of -500 kV/cm, leading to Stark shifts of up to 25 meV. Our results suggest this technique may enable future applications that require self-assembled dots with transitions at the same energy.

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