ENERGY TRANSPORT IN SiO2 CRYSTALS: LUMINESCENCE EXCITATION SPECTRA OF STISHOVITE AND α-QUARTZ
| dc.contributor.author | Trukhin, Anatoli N. | |
| dc.date.accessioned | 2023-01-12T18:00:53Z | |
| dc.date.accessioned | 2025-07-22T23:24:35Z | |
| dc.date.available | 2023-01-12T18:00:53Z | |
| dc.date.issued | 2022 | |
| dc.description | The financial support of the Latvian Science Council Grant No lzp-2021/1-0215 and the funding of the University of Latvia as the Centre of Excellence within the European Union's Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2, are greatly acknowledged. | en_US |
| dc.description.abstract | The migration of elementary electronic excitations was studied in a single crystal of stishovite and compared with migration in a crystal of α-quartz and polycrystalline stishovite powder. The research method is based on comparing the transfer of absorbed energy to luminescence centers, used as detectors of quasiparticles, and the near-surface nonradiative annihilation of electronic excitations. A sign of migration is the appearance of some minima in the photoluminescence (PLE) excitation spectrum in the region of maxima in the intrinsic absorption spectrum. The PLE spectrum of stishovite contains the first minimum at 9.8 eV, indicating the migration of electronic excitations and the existence of an intrinsic absorption band in stishovite at 9.8 eV. In α-quartz, the first minimum in the PLE spectrum is located at 10.5 eV and corresponds well to the intrinsic absorption band of the exciton. © 2022 Sciendo. All rights reserved.--//-- This is an open access article Trukhin A.N. ENERGY TRANSPORT IN SiO2 CRYSTALS: LUMINESCENCE EXCITATION SPECTRA OF STISHOVITE AND α-QUARTZ (2022) Latvian Journal of Physics and Technical Sciences, 59 (4), pp. 19 - 24, DOI: 10.2478/lpts-2022-0030 published under CC BY-NC-ND 4.0 licence. | en_US |
| dc.description.sponsorship | Latvijas Zinātnes Padome lzp-2021/1-0215; Institute of Solid-State Physics, University of Latvia has received funding from the European Union's Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-Teaming Phase 2 under grant agreement No. 739508, project CAMART2. . | en_US |
| dc.identifier.doi | 10.2478/lpts-2022-0030 | |
| dc.identifier.issn | 0868-8257 | |
| dc.identifier.uri | https://sciendo.com/es/article/10.2478/lpts-2022-0030 | |
| dc.identifier.uri | https://dspace.lu.lv/handle/7/61726 | |
| dc.language.iso | eng | en_US |
| dc.publisher | Sciendo | en_US |
| dc.relation | info:eu-repo/grantAgreement/EC/H2020/739508/EU/Centre of Advanced Material Research and Technology Transfer/CAMART² | en_US |
| dc.relation.ispartofseries | Latvian Journal of Physics and Technical Sciences;59 (4) | |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.subject | Research Subject Categories::NATURAL SCIENCES::Physics | en_US |
| dc.subject | Electronic excitations migration | en_US |
| dc.subject | photoluminescence excitation | en_US |
| dc.subject | stishovite single crystal | en_US |
| dc.title | ENERGY TRANSPORT IN SiO2 CRYSTALS: LUMINESCENCE EXCITATION SPECTRA OF STISHOVITE AND α-QUARTZ | en_US |
| dc.type | info:eu-repo/semantics/article | en_US |