Back to Search
Start Over
The optical spectra characterization of Cr2+:ZnSe polycrystalline synthesized by direct reaction of Zn–Cr alloy and element Se
- Source :
- Ceramics International. 46:21136-21140
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Cr2+:ZnSe materials have attracted much attention as candidates for mid-infrared laser source either in the form of polycrystalline powders, or bulk ceramics, single crystals and nano-materials. In this work, a novel method for synthesizing Cr2+:ZnSe polycrystalline by direct reaction of Zn–Cr alloy and element Se (DRAE) was proposed. The zinc alloy containing 0.1 at% Cr was prepared by dissolving Cr in zinc liquid in a closed quartz ampoule. X-ray diffraction (XRD) results showed that the synthesized Cr2+:ZnSe polycrystalline was with a Zinc-blend structure. X-ray photoelectron spectroscopy (XPS) spectra showed that there was no un-reacted element of Zn, or Se. Cr2+ ions successfully and uniformly doped into ZnSe crystal lattice, which is confirmed by the diffuse reflectance spectrum, Raman spectrum and mid-infrared photoluminescence spectra. Furthermore, the sample showed excellent mid-infrared properties without luminescence quenching in the region 1800–3000 nm, and the decay-time was about 5 μs. The as-synthesized Cr2+:ZnSe polycrystalline meets the requirement for the preparation of mid-infrared ceramic or single crystals. These results indicate that the novel strategy of DRAE is valid for the synthesis of other transition metal doped ZnSe materials.
- Subjects :
- 010302 applied physics
Photoluminescence
Materials science
Process Chemistry and Technology
Analytical chemistry
chemistry.chemical_element
02 engineering and technology
Zinc
021001 nanoscience & nanotechnology
01 natural sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
symbols.namesake
X-ray photoelectron spectroscopy
chemistry
Transition metal
0103 physical sciences
Materials Chemistry
Ceramics and Composites
symbols
Crystallite
Diffuse reflection
0210 nano-technology
Raman spectroscopy
Luminescence
Subjects
Details
- ISSN :
- 02728842
- Volume :
- 46
- Database :
- OpenAIRE
- Journal :
- Ceramics International
- Accession number :
- edsair.doi...........cda049ffc3f19d0ab178cec99577acfe