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Title: Nanomembrane-based materials for Group IV semiconductor quantum electronics

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep04218· OSTI ID:1624694
 [1];  [1];  [2];  [1];  [1]
  1. Univ. of Wisconsin, Madison, WI (United States). Dept. of Materials Science and Engineering
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials

Strained-silicon/relaxed-silicon-germanium alloy (strained-Si/SiGe) heterostructures are the foundation of Group IV-element quantum electronics and quantum computation, but current materials quality limits the reliability and thus the achievable performance of devices. In comparison to conventional approaches, single-crystal SiGe nanomembranes are a promising alternative as substrates for the epitaxial growth of these heterostructures. Because the nanomembrane is truly a single crystal, in contrast to the conventional SiGe substrate made by compositionally grading SiGe grown on bulk Si, significant improvements in quantum electronic-device reliability may be expected with nanomembrane substrates. We compare lateral strain inhomogeneities and the local mosaic structure (crystalline tilt) in strained-Si/SiGe heterostructures that we grow on SiGe nanomembranes and on compositionally graded SiGe substrates, with micro-Raman mapping and nanodiffraction, respectively. Significant structural improvements are found using SiGe nanomembranes.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-06CH11357; FG02-03ER46028
OSTI ID:
1624694
Journal Information:
Scientific Reports, Vol. 4, Issue 1; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (25)

Physics of strain effects in semiconductors and metal-oxide-semiconductor field-effect transistors journal May 2007
Strain: A Solution for Higher Carrier Mobility in Nanoscale MOSFETs journal August 2009
Fast flexible electronics with strained silicon nanomembranes journal February 2013
Practical design and simulation of silicon-based quantum-dot qubits journal March 2003
Direct-bandgap light-emitting germanium in tensilely strained nanomembranes journal November 2011
Strain Tuning of Ferroelectric Thin Films journal August 2007
Room-temperature ferroelectricity in strained SrTiO3 journal August 2004
Controllable valley splitting in silicon quantum devices journal December 2006
A silicon-based nuclear spin quantum computer journal May 1998
Defect-Free Single-Crystal SiGe: A New Material from Nanomembrane Strain Engineering journal July 2011
Strain relaxation and dislocations in SiGe/Si structures journal November 1996
In-plane strain fluctuation in strained-Si/SiGe heterostructures journal November 2003
Strain in epitaxial Si/SiGe graded buffer structures grown on Si(100), Si(110), and Si(111) optically evaluated by polarized Raman spectroscopy and imaging journal January 2010
Observation of local tilted regions in strain-relaxed SiGe/Si buffer layers using x-ray microdiffraction journal February 1999
Nanoscale Distortions of Si Quantum Wells in Si/SiGe Quantum-Electronic Heterostructures journal July 2012
Elastically strain-sharing nanomembranes: flexible and transferable strained silicon and silicon–germanium alloys journal February 2007
Synthesis, assembly and applications of semiconductor nanomembranes journal September 2011
Phonon strain shift coefficients in Si1−xGex alloys journal May 2008
Raman investigation of strain in Si∕SiGe heterostructures: Precise determination of the strain-shift coefficient of Si bands journal March 2006
Thin Film Materials book July 2010
Si/Ge Junctions Formed by Nanomembrane Bonding journal February 2011
Micro-Raman spectroscopy to study local mechanical stress in silicon integrated circuits journal February 1996
Raman spectroscopy of Si1−xGex epilayers journal December 2005
Nanoscale Hard X-Ray Microscopy Methods for Materials Studies journal July 2013
Silicon Nanomembranes journal January 2007

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Stressor-layer-induced elastic strain sharing in SrTiO 3 complex oxide sheets journal February 2018
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