Free-standing Al[subscript x]Ga[subscript 1−x]As heterostructures by gas-phase etching of germanium

We outline a facile fabrication technique for the realization of free-standing Al[subscript x]Ga[subscript 1−x]As heterostructures of arbitrary aluminum content. Utilizing xenon difluoride (XeF[subscript 2]) we rapidly and selectively remove a sacrificial germanium (Ge) underlayer in a room temperat...

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Bibliographic Details
Main Authors: Cole, Garrett D., Bai, Yu, Aspelmeyer, Markus, Fitzgerald, Eugene A.
Other Authors: Massachusetts Institute of Technology. Department of Materials Science and Engineering
Format: Article
Language:en_US
Published: American Institute of Physics (AIP) 2013
Online Access:http://hdl.handle.net/1721.1/79626
https://orcid.org/0000-0002-1891-1959