Electronic and optical properties of quantum wells embedded in wrinkled nanomembranes

Details Electronic and optical properties of quantum wells embedded in wrinkled nanomembranes Electronic and optical properties of quantum wells embedded in wrinkled nanomembranes

2011-07-06

arxiv.org/abs/1107.1043v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 4 figures. The following article has been submitted to Applied Physics Letters. After it is published, it will be fou

Scientific paper

The authors theoretically investigate quantum confinement and transition energies in quantum wells (QWs) asymmetrically positioned in wrinkled nanomembranes. Calculations reveal that the wrinkle profile induces both blue- and redshifts depending on the lateral position of the QW probed. Relevant radiative transistions include the ground state of the electron (hole) and excited states of the hole (electron). Energy shifts as well as stretchability of the structure are studied as a function of wrinkle amplitude and period. Large tunable bandwidths of up to 70 nm are predicted for highly asymmetric wrinkled QWs.

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