Nanomembrane quantum-light-emitting diodes integrated onto piezoelectric actuators.

Trotta, R; Atkinson, P; Plumhof, J D; Zallo, E; Rezaev, R O; Kumar, S; Baunack, S; Schröter, J R et al. · Adv Mater · 2012

basic_science · Level V

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Abstract

We integrate resonant-cavity light-emitting diodes containing quantum dots onto substrates with giant piezoelectric response. Via strain, the energy of the photons emitted by the diode can be precisely controlled during electrical injection over a spectral range larger than 20 meV. Simultaneously, the exciton fine-structure-splitting and the biexciton binding energy can be tuned to the values required for entangled photon generation.

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