Energy and Power Engineering

Volume 2, Issue 1 (February 2010)

ISSN Print: 1949-243X   ISSN Online: 1947-3818

Google-based Impact Factor: 0.66  Citations  

Cr+3 Distribution in Al1 and Al2 Sites of Alexandrite (BeAl2O4: Cr3+) Induced by Annealing, Investigated by Optical Spectroscopy

HTML  Download Download as PDF (Size: 198KB)  PP. 18-24  
DOI: 10.4236/epe.2010.21004    5,855 Downloads   10,244 Views  Citations

Affiliation(s)

.

ABSTRACT

In order to investigate optical properties of alexandrite, the present work deals with the influence of thermal annealing on optical absorption and luminescence spectra of natural samples. The exposure time to heat treatment at 1000oC is taken into account. Possible migration of Cr3+ ions from Al1 (inversion site) to Al2 (reflection site) is detected. Sample composition is obtained through Scanning Electron Microscopy (SEM) measurements and points to a rearrangement of Cr+3 and Fe3+ ions in the alexandrite crystalline structure, un-der thermal annealing influence. This feature may be used to control the optical properties of natural alexan-drite, which can be associated to the observed laser emission effect.

Share and Cite:

N. TRINDADE, R. SCALVI and L. SCALVI, "Cr+3 Distribution in Al1 and Al2 Sites of Alexandrite (BeAl2O4: Cr3+) Induced by Annealing, Investigated by Optical Spectroscopy," Energy and Power Engineering, Vol. 2 No. 1, 2010, pp. 18-24. doi: 10.4236/epe.2010.21004.

Cited by

[1] Alexandrite: investigation of a natural material for radiation dosimetry
Journal of Physics …, 2022
[2] 翠绿宝石超快激光器研究进展 (特邀)
Electro-Optic …, 2022
[3] Characterization of the optically stimulated luminescence (OSL) response of beta-irradiated alexandrite-polymer composites
2020
[4] Correlation between thermoluminescence and optically stimulated luminescence responses of natural alexandrite
2020
[5] ELEKTRONISKIE IEROSINĀJUMI UN PROCESI LUMINISCENTĀ ILGI SPĪDOŠĀ SrAl2O4 MATERIĀLĀ
2019
[6] Performance Analysis of Solar Pumped Alexandrite Laser: A New Way for Lowering the Threshold Power
2019
[7] ELECTRONIC EXCITATIONS AND PROCESSES IN LONG LASTING LUMINESCENCE MATERIAL SRAL2O4
2018
[8] Thermoluminescence of natural BeAl2O4:Cr3+ Brazilian mineral: Preliminary studies
Journal of Luminescence, 2018
[9] The search for defects in undoped SrAl2O4 material
Optical Materials, 2018
[10] Thermoluminescence and Radioluminescence of alexandrite mineral
Journal of Luminescence, 2018
[11] Photo-Induced Thermally Stimulated Depolarization Current (TSDC) in Natural and Synthetic Alexandrite (BeAl2O4: Cr3+)
2016
[12] Photo-Induced Thermally Stimulated Depolarization Current (TSDC) in Natural and Synthetic Alexandrite (BeAl2O4:Cr3+)
Materials Sciences and …, 2016
[13] Specific features of cation distribution in the crystal structure of mariinskite BeCr 2 O 4 (Derivative of olivine-type structure)
2014
[14] Specific features of cation distribution in the crystal structure of mariinskite BeCr2O4 (Derivative of olivine-type structure)
Crystallography Reports, 2014
[15] ОСОБЕННОСТИ РАСПРЕДЕЛЕНИЯ КАТИОНОВ В КРИСТАЛЛИЧЕСКОЙ СТРУКТУРЕ МАРИИНСКИТА BeCr 2 O 4 ПРОИЗВОДНОЙ ОТ СТРУКТУРНОГО ТИПА …
2014
[16] Mariinskite, BeCr2O4, a new mineral, chromium analog of chrysoberyl
Geology of Ore Deposits, 2013
[17] Mariinskite, BeCr 2 O 4, a new mineral, chromium analog of chrysoberyl
2013
[18] Site partitioning of Cr3+ in the trichroic alexandrite BeAl2O4: Cr3+ crystal: contribution from x-ray absorption spectroscopy
Journal of Physics: Condensed Matter, 2012
[19] МАРИИНСКИТ BeCr 2 O 4—НОВЫЙ МИНЕРАЛ, ХРОМОВЫЙ АНАЛОГ ХРИЗОБЕРИЛЛА
2012

Journals Menu
Follow SCIRP
Contact us
+1 323-425-8868
customer@scirp.org
WhatsApp +86 18163351462(WhatsApp)
Click here to send a message to me 1655362766
Paper Publishing WeChat

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.