Electronic Raman scattering as an ultra-sensitive probe of strain effects in semiconductors
Abstract
In this study, the semiconductor strain engineering has become a critical feature of high-performance electronics because of the significant device performance enhancements that it enables. These improvements, which emerge from strain-induced modifications to the electronic band structure, necessitate new ultra-sensitive tools to probe the strain in semiconductors. Here, we demonstrate that minute amounts of strain in thin semiconductor epilayers can be measured using electronic Raman scattering. We applied this strain measurement technique to two different semiconductor alloy systems using coherently strained epitaxial thin films specifically designed to produce lattice-mismatch strains as small as 10–4. Comparing our strain sensitivity and signal strength in AlxGa1–xAs with those obtained using the industry-standard technique of phonon Raman scattering, we found that there was a sensitivity improvement of 200-fold and a signal enhancement of 4 × 103, thus obviating key constraints in semiconductor strain metrology.
- Authors:
-
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Colorado, Boulder, CO (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC)
- OSTI Identifier:
- 1184485
- Alternate Identifier(s):
- OSTI ID: 1220707
- Report Number(s):
- SAND-2014-18603J; NREL/JA-5K00-63977
Journal ID: iSSN 2041-1723; 540405
- Grant/Contract Number:
- AC04-94AL85000; AC36-08GO28308
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 6
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; physical sciences; applied physics; condensed matter; 14 SOLAR ENERGY; 36 MATERIALS SCIENCE; AlGaAs; Raman; strain
Citation Formats
Fluegel., Brian, Mialitsin, Aleksej V., Beaton, Daniel A., Reno, John L., and Mascarenhas, Angelo. Electronic Raman scattering as an ultra-sensitive probe of strain effects in semiconductors. United States: N. p., 2015.
Web. doi:10.1038/ncomms8136.
Fluegel., Brian, Mialitsin, Aleksej V., Beaton, Daniel A., Reno, John L., & Mascarenhas, Angelo. Electronic Raman scattering as an ultra-sensitive probe of strain effects in semiconductors. United States. https://doi.org/10.1038/ncomms8136
Fluegel., Brian, Mialitsin, Aleksej V., Beaton, Daniel A., Reno, John L., and Mascarenhas, Angelo. 2015.
"Electronic Raman scattering as an ultra-sensitive probe of strain effects in semiconductors". United States. https://doi.org/10.1038/ncomms8136. https://www.osti.gov/servlets/purl/1184485.
@article{osti_1184485,
title = {Electronic Raman scattering as an ultra-sensitive probe of strain effects in semiconductors},
author = {Fluegel., Brian and Mialitsin, Aleksej V. and Beaton, Daniel A. and Reno, John L. and Mascarenhas, Angelo},
abstractNote = {In this study, the semiconductor strain engineering has become a critical feature of high-performance electronics because of the significant device performance enhancements that it enables. These improvements, which emerge from strain-induced modifications to the electronic band structure, necessitate new ultra-sensitive tools to probe the strain in semiconductors. Here, we demonstrate that minute amounts of strain in thin semiconductor epilayers can be measured using electronic Raman scattering. We applied this strain measurement technique to two different semiconductor alloy systems using coherently strained epitaxial thin films specifically designed to produce lattice-mismatch strains as small as 10–4. Comparing our strain sensitivity and signal strength in AlxGa1–xAs with those obtained using the industry-standard technique of phonon Raman scattering, we found that there was a sensitivity improvement of 200-fold and a signal enhancement of 4 × 103, thus obviating key constraints in semiconductor strain metrology.},
doi = {10.1038/ncomms8136},
url = {https://www.osti.gov/biblio/1184485},
journal = {Nature Communications},
number = ,
volume = 6,
place = {United States},
year = {Thu May 28 00:00:00 EDT 2015},
month = {Thu May 28 00:00:00 EDT 2015}
}
Web of Science
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