In collaboration with Prof. Christoph Deneke, we studied the optical emission of molecular beam epitaxy grown semiconductor systems on free and flexible membranes. We obtain optically active nanostructures (quantum wells) regrown on released GaAs/InGaAs/GaAs membranes used as virtual substrates. Together with our demonstrated ability to transfer thin semiconductor membranes before overgrowth to a new host substrate, this work establishes III–V semiconductor membranes as a compliant substrate for epitaxy, allowing strain engineering of
III–V heterostructures for optical and electrical applications.
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For the press release HERE.