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Photoluminescent properties of cubic particles synthesized in metal immersed solutions
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10.1063/1.3516489
/content/aip/journal/jap/108/11/10.1063/1.3516489
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/11/10.1063/1.3516489

Figures

Image of FIG. 1.
FIG. 1.

Optical images of (a) (room light), (b) (UV illumination), and (c) precipitates synthesized in Zn and Al immersed solutions, respectively.

Image of FIG. 2.
FIG. 2.

SEM image of precipitate synthesized in Zn immersed solution.

Image of FIG. 3.
FIG. 3.

(a) XRD pattern of precipitate synthesized in Zn immersed solution. The ASTM card patterns of and are also shown in the lower part. (b) XRD pattern of precipitate synthesized in Al immersed solution. The ASTM card pattern of is also shown in the lower part.

Image of FIG. 4.
FIG. 4.

XPS survey spectra of (a) and (b) precipitates synthesized in Zn and Al immersed solutions, respectively.

Image of FIG. 5.
FIG. 5.

Room-temperature PL spectra of precipitates synthesized by etching (a) Mg, (b) Fe, (c) Ni, and (d) Zn in solution. The red emission lines in (a)–(d) are produced by particles contained in the precipitate. No PL emission is observed from the precipitate synthesized in the Al immersed solution [(e)].

Image of FIG. 6.
FIG. 6.

PL spectra of (a) at 80 K, (b) at 80 K (synthesized in our laboratory), and (c) reported by Pfeil (, Ref. 15).

Image of FIG. 7.
FIG. 7.

Room-temperature PL spectra of some -activated hexafluorides [ , , , , , and ], together with those of - and . The red phosphors measured here were obtained in our laboratory.

Image of FIG. 8.
FIG. 8.

Room-temperature PL and PLE spectra of . The PL spectrum was obtained by excitation at , while the PLE spectrum was measured by monitoring at . The vertical bars in the PLE spectrum show the results calculated using Eq. (6) with and 10 .

Image of FIG. 9.
FIG. 9.

PL spectra of measured at (a) and (b) 300 K.

Image of FIG. 10.
FIG. 10.

Temperature-dependent PL spectra of measured between and 300 K in steps of 20 K.

Image of FIG. 11.
FIG. 11.

Integrated PL intensity vs temperature of . The solid line represents the result calculated using Eq. (7).

Tables

Generic image for table
Table I.

Summary of crystal classes, space groups, ZPL emission intensities, piezoelectricity (PZ), and optical rotation (OR) activities in some -activated hexafluoride phosphors. “” and “−” indicate that the intensities/phenomena are strong and weak (or principally forbidden), respectively.

Generic image for table
Table II.

Vibronic frequencies in and (in ).

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/content/aip/journal/jap/108/11/10.1063/1.3516489
2010-12-02
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photoluminescent properties of cubic K2MnF6 particles synthesized in metal immersed HF/KMnO4 solutions
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/11/10.1063/1.3516489
10.1063/1.3516489
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