Published December 14, 2018
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Synthesis of a novel strontium-based wide-bandgap semiconductor via X-ray photochemistry under extreme conditions
Abstract
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.
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.Attached Files
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Additional details
- Eprint ID
- 90794
- Resolver ID
- CaltechAUTHORS:20181109-101750709
- DE-NA0002912
- Department of Energy (DOE)
- DE-FC08-01NV14049
- Department of Energy (DOE)
- DE-NA0001974
- Department of Energy (DOE)
- NSF
- DE-AC02-06CH11357
- Department of Energy (DOE)
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- National Research Council of Canada
- Canadian Institutes of Health Research (CIHR)
- Province of Saskatchewan
- Western Economic Diversification Canada
- University of Saskatchewan
- Created
-
2018-11-11Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences