The sol-emulsion-gel method is used for the preparation of Cr3+-doped Al2O3 nanocrystals. The luminescence spectra of Cr3+ ions in Al2O3 nanocrystals are found to be sensitive to the crystal structure and dopant concentration. It is found that a broad band emission in the range of 680-720 nm and the R-lines (R-2, 692.9 and R-1, 694.3 nm) are obtained at 900 degrees C (theta-Al2O3) and 1025 degrees C (alpha-Al2O3) heat-treated 0.2 mol% Cr-doped Al2O3 samples respectively. However, for higher concentrations of chromium (2 mol%) R-lines are obtained at 900 degrees C annealed samples and these lines are broadened and red shifted at 1025 degrees C annealed sample which is due to Cr-pair (and/or cluster) formation. The analysis suggests that lumi...
Al2O3 and Al2-x Cr (x) O-3 (x = 0.01, 0.02 and 0.04) powders have been synthesized by the polymeric ...
International audienceData concerning thermostimulated luminescence (TL) and fluorescence spectra ar...
The sol–emulsion–gel method is used for the preparation of Er3+ doped ZrO2 nanocrystals. The lumines...
The sol–emulsion-gel method is used for the preparation of Cr<SUP>3+</SUP>-doped Al<SUB>2</SUB>O<SUB...
Cr3+doped alumina nanocrystals have been successfully prepared using combustion method. The chemical...
Impurity Cr 3 centers in submicron and nanostructured Al 2O 3 crystals of different phase compositio...
Chromium-doped Alumina was synthesized via combustion technique. Nanoparticles were produced from al...
A thorough investigation by X-ray diffraction, UV–vis and luminescence spectroscopy is carried out t...
The sol-emulsion-gel method is used for the preparation of Er3+ doped ZrO2 nanocrystals. The lumines...
The photoluminescence (PL) of intrinsic defects and Cr 3+ impurity centers in nanosized alumina (Al ...
In the present work, Cr-substituted Mg3Al1−xCrx layered double hydroxides (LDHs) were synthesised th...
MgAl2O4:Cr3+ (0.01–0.11 mol) doped nanocrystalline powders were prepared by a combustion method at l...
This work explores the preparation of nanocrystalline Cr3+ (1-5 mol%) doped CaSiO3 phosphors by solu...
This manuscript presents a study on the growth stress of Al2O3 nanocrystals in Lu2O3 matrix and its ...
We have studied the spectroscopic properties of four nano-powder samples of Y3Al5O12: Cr particles w...
Al2O3 and Al2-x Cr (x) O-3 (x = 0.01, 0.02 and 0.04) powders have been synthesized by the polymeric ...
International audienceData concerning thermostimulated luminescence (TL) and fluorescence spectra ar...
The sol–emulsion–gel method is used for the preparation of Er3+ doped ZrO2 nanocrystals. The lumines...
The sol–emulsion-gel method is used for the preparation of Cr<SUP>3+</SUP>-doped Al<SUB>2</SUB>O<SUB...
Cr3+doped alumina nanocrystals have been successfully prepared using combustion method. The chemical...
Impurity Cr 3 centers in submicron and nanostructured Al 2O 3 crystals of different phase compositio...
Chromium-doped Alumina was synthesized via combustion technique. Nanoparticles were produced from al...
A thorough investigation by X-ray diffraction, UV–vis and luminescence spectroscopy is carried out t...
The sol-emulsion-gel method is used for the preparation of Er3+ doped ZrO2 nanocrystals. The lumines...
The photoluminescence (PL) of intrinsic defects and Cr 3+ impurity centers in nanosized alumina (Al ...
In the present work, Cr-substituted Mg3Al1−xCrx layered double hydroxides (LDHs) were synthesised th...
MgAl2O4:Cr3+ (0.01–0.11 mol) doped nanocrystalline powders were prepared by a combustion method at l...
This work explores the preparation of nanocrystalline Cr3+ (1-5 mol%) doped CaSiO3 phosphors by solu...
This manuscript presents a study on the growth stress of Al2O3 nanocrystals in Lu2O3 matrix and its ...
We have studied the spectroscopic properties of four nano-powder samples of Y3Al5O12: Cr particles w...
Al2O3 and Al2-x Cr (x) O-3 (x = 0.01, 0.02 and 0.04) powders have been synthesized by the polymeric ...
International audienceData concerning thermostimulated luminescence (TL) and fluorescence spectra ar...
The sol–emulsion–gel method is used for the preparation of Er3+ doped ZrO2 nanocrystals. The lumines...