banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Photoluminescent properties of red phosphor synthesized from aqueous solution
Rent this article for


Image of FIG. 1.
FIG. 1.

SEM image for chemically synthesized phosphor in aqueous solution.

Image of FIG. 2.
FIG. 2.

(a) XRD pattern for chemically synthesized phosphor. (b) XRD pattern from an ASTM card of (space ).

Image of FIG. 3.
FIG. 3.

XPS survey spectrum for chemically synthesized phosphor.

Image of FIG. 4.
FIG. 4.

PL spectra for (a) , (b) , (c) , and (d) phosphors measured at 300 K with a He–Cd laser as an excitation light source. The ZPL energies correspond to (a) 1.990, (b) 1.993, (c) 2.005, and (d) 2.017 eV, respectively. The , , and spectra shown in (b)–(d) were taken from Refs. 9 and 11.

Image of FIG. 5.
FIG. 5.

PL and PLE spectra for phosphor at 300 K. The PL spectrum was obtained by exciting at , while the PLE spectrum was measured by monitoring at . The vertical bars in the PLE spectrum show the results calculated using Eq. (1) with and 11 .

Image of FIG. 6.
FIG. 6.

Temperature-dependent PL spectra for phosphor measured between and 300 K in steps of 10 K with a He–Cd laser as an excitation light source.

Image of FIG. 7.
FIG. 7.

PL spectra for phosphor measured at with a He–Cd laser as an excitation light source. The ZPL energy corresponds to 1.990 eV. Several local vibronic modes (, , and ), together with the fundamental lattice modes (TA and LA), are marked by vertical arrows.

Image of FIG. 8.
FIG. 8.

PL spectra in the (a) and (b) regions for phosphor at and 300 K. The and peaks observed at are deconvoluted into two Gaussian peaks, and ( or 3), as shown by the dashed lines. All the emission peaks observed at exhibit a small amount of splitting (, vertical solid lines).

Image of FIG. 9.
FIG. 9.

ZPL emission spectra for (a) phosphor at and 300 K and (b) phosphor at . The ZPL peak observed in at lower temperatures exhibits a small amount of splitting .

Image of FIG. 10.
FIG. 10.

Plots of (a) ZPL energy, (b) Stokes and anti-Stokes intensities , and (c) their ratio vs temperature for the emission peak in phosphor. The solid lines are calculated from (a) Eq. (2), (b) Eq. (3), and (c) Eq. (5).

Image of FIG. 11.
FIG. 11.

Integrated PL intensity vs temperature for phosphor. The solid line represents the result calculated using Eq. (8).


Generic image for table
Table I.

Stokes vibronic modes in (space ) and (space ) at 300 K (in meV). The data are taken from Refs. 9 and 10.


Article metrics loading...


Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photoluminescent properties of K2GeF6:Mn4+ red phosphor synthesized from aqueous HF/KMnO4 solution