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Adv Mater. 2012 May 22;24(20):2668-72. doi: 10.1002/adma.201200537. Epub 2012 Apr 13.

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

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  • 1Institute for Integrative Nanosciences, IFW Dresden, Germany.


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.

Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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