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InGaAs/InP double heterostructures on InP/Si templates fabricated by wafer bonding and hydrogen-induced exfoliation

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5 Author(s)
Morral, A.F. ; Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125 ; Zahler, J.M. ; Atwater, Harry A. ; Ahrenkiel, S.P.
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Hydrogen-induced exfoliation combined with wafer bonding has been used to transfer ∼600-nm-thick films of (100) InP to Si substrates. Cross-section transmission electron microscopy (TEM) shows a transferred crystalline InP layer with no observable defects in the region near the bonded interface and an intimately bonded interface. InP and Si are covalently bonded as inferred by the fact that InP/Si pairs survived both TEM preparation and thermal cycles up to 620 °C necessary for metalorganic chemical vapor deposition growth. The InP transferred layers were used as epitaxial templates for the growth of InP/In0.53Ga0.47As/InP double heterostructures. Photoluminescence measurements of the In0.53Ga0.47As layer show that it is optically active and under tensile strain, due to differences in the thermal expansion between InP and Si. These are promising results in terms of a future integration of Si electronics with optical devices based on InP-lattice-matched materials. © 2003 American Institute of Physics.

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Applied Physics Letters  (Volume:83 ,  Issue: 26 )