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Synthesis of a novel strontium-based wide-bandgap semiconductor via X-ray photochemistry under extreme conditions

Evlyukhin, Egor and Kim, Eunja and Cifligu, Petrika and Goldberger, David and Schyck, Sarah and Harris, Blake and Torres, Sindi and Rossman, George R. and Pravica, Michael (2018) Synthesis of a novel strontium-based wide-bandgap semiconductor via X-ray photochemistry under extreme conditions. Journal of Materials Chemistry C, 6 (46). pp. 12473-12478. ISSN 2050-7526.

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The synthesis and characterization of a novel, low cost, amorphous wide-bandgap semiconductor via X-ray induced decomposition of strontium oxalate at high pressure have been demonstrated. By means of IR spectroscopy, the final product is identified as a mixture of strontium carbonate, strontium oxalate and CO-derived materials. Band gap measurements demonstrate that the final product exhibits a much lower band gap (2.45 eV) than the initial strontium oxalate powder (4.07 eV), suggesting that the synthesized material can be highly useful in electronic and optical applications.

Item Type:Article
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URLURL TypeDescription Information
Evlyukhin, Egor0000-0003-1875-9165
Rossman, George R.0000-0002-4571-6884
Pravica, Michael0000-0002-1536-4048
Additional Information:© 2018 The Royal Society of Chemistry. The article was received on 06 Sep 2018, accepted on 31 Oct 2018 and first published on 02 Nov 2018. We gratefully acknowledge support from the Department of Energy National Nuclear Security Administration (DOE-NNSA) under Award Number DE-NA0002912. We also acknowledge support from the DOE Cooperative Agreement No. DE-FC08-01NV14049 with the University of Nevada, Las Vegas. Portions of this work were performed at HPCAT (Sector 16), Advanced Photon Source (APS), Argonne National Laboratory. HPCAT operation was supported by DOE-NNSA under Award No. DE-NA0001974, with partial instrumentation funding by NSF. The Advanced Photon Source is a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. A portion of the research described in this paper was performed at the mid-IR beamline of the Canadian Light Source, which is supported by the Natural Sciences and Engineering Research Council of Canada, the National Research Council Canada, the Canadian Institutes of Health Research, the Province of Saskatchewan, Western Economic Diversification Canada, and the University of Saskatchewan. There are no conflicts to declare.
Funding AgencyGrant Number
Department of Energy (DOE)DE-NA0002912
Department of Energy (DOE)DE-FC08-01NV14049
Department of Energy (DOE)DE-NA0001974
Department of Energy (DOE)DE-AC02-06CH11357
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
National Research Council of CanadaUNSPECIFIED
Canadian Institutes of Health Research (CIHR)UNSPECIFIED
Province of SaskatchewanUNSPECIFIED
Western Economic Diversification CanadaUNSPECIFIED
University of SaskatchewanUNSPECIFIED
Record Number:CaltechAUTHORS:20181109-101750709
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90794
Deposited By: Tony Diaz
Deposited On:11 Nov 2018 13:00
Last Modified:29 Nov 2018 17:16

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