Unknown

Dataset Information

0

Single Crystal Growth and Crystal Structure Analysis of Novel Orange-Red Emission Pure Nitride CaAl2Si4N8:Eu2+ Phosphor.

ABSTRACT: Single crystal of novel orange-red emission CaAl2Si4N8:Eu2+ phosphor was grown by our original vapor phase technique, and the precise crystal structure was investigated for the first time by single crystal X-ray diffraction analysis. The crystal structure of CaAl2Si4N8:Eu2+ single crystal was verified to be an ?-Si3N4-type trigonal structure (space group P31c) with a = 0.79525(9) nm, c = 0.57712(8) nm, and z = 2. The Ca atoms were coordinated to seven nitrogen atoms and located in the three-dimensional framework formed by (Al, Si)N4 tetrahedra. The single-crystal CaAl2Si4N8:Eu2+ phosphors exhibited a broad reddish-yellow emission with a peak at 600 nm under near-UV and blue light excitation. When increasing the temperature up to 150 °C, the emission intensity of the CaAl2Si4N8:Eu2+ phosphor decreased to 88% of the initial value at 25 °C.

SUBMITTER: Hasegawa S 

PROVIDER: S-EPMC6648754 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

Single Crystal Growth and Crystal Structure Analysis of Novel Orange-Red Emission Pure Nitride CaAl<sub>2</sub>Si<sub>4</sub>N<sub>8</sub>:Eu<sup>2+</sup> Phosphor.

Hasegawa Shota S   Hasegawa Takuya T   Kim Sun Woog SW   Yamanashi Ryota R   Uematsu Kazuyoshi K   Toda Kenji K   Sato Mineo M  

ACS omega 20190607 6

Single crystal of novel orange-red emission CaAl<sub>2</sub>Si<sub>4</sub>N<sub>8</sub>:Eu<sup>2+</sup> phosphor was grown by our original vapor phase technique, and the precise crystal structure was investigated for the first time by single crystal X-ray diffraction analysis. The crystal structure of CaAl<sub>2</sub>Si<sub>4</sub>N<sub>8</sub>:Eu<sup>2+</sup> single crystal was verified to be an α-Si<sub>3</sub>N<sub>4</sub>-type trigonal structure (space group <i>P</i>31<i>c</i>) with <i>a</i>  ...[more]

Similar Datasets

Unknown Structure and photoluminescence of Eu<sup>3+</sup> doped Sr<sub>2</sub>InTaO<sub>6</sub> red phosphor with high color purity.
| S-EPMC8695113 | biostudies-literature
Unknown Sr[Li<sub>2</sub>Al<sub>2</sub>O<sub>2</sub>N<sub>2</sub>]:Eu<sup>2+</sup>-A high performance red phosphor to brighten the future.
| S-EPMC6478936 | biostudies-literature
Unknown Formation and enhancement of negative thermal quenching in emission of KGdF<sub>4</sub>:Eu<sup>3+</sup>, Yb<sup>3+</sup>@GQDs.
| S-EPMC9043440 | biostudies-literature
Unknown Synthesis of Eu<sup>3+</sup>-Doped NaGd<sub>9</sub>Si<sub>6</sub>O<sub>26</sub> Sub-Microcrystals from a NaGdF<sub>4</sub>@SiO<sub>2</sub> Structure.
| S-EPMC10222598 | biostudies-literature
Unknown Single-Component Color-Tunable Gd(pic)<sub>3</sub>: Eu<sup>3+</sup> Phosphor Based on a Metal-Organic Framework for Near-UV White-Light-Emitting Diodes.
| S-EPMC6649047 | biostudies-literature
Unknown Upconversion Emission Studies in Er<sup>3+/</sup>Yb<sup>3+</sup> Doped/Co-Doped NaGdF<sub>4</sub> Phosphor Particles for Intense Cathodoluminescence and Wide Temperature-Sensing Applications.
| S-EPMC9570846 | biostudies-literature
Unknown Abnormal Eu<sup>3+</sup> → Eu<sup>2+</sup> Reduction in Ca<sub>9-<i>x</i></sub>Mn<i><sub>x</sub></i>Eu(PO<sub>4</sub>)<sub>7</sub> Phosphors: Structure and Luminescent Properties.
| S-EPMC9962388 | biostudies-literature
Unknown Synthesis and upconversion emission studies of CaYF<sub>5</sub>:Ho<sup>3+</sup>/Yb<sup>3+</sup> phosphor and its applications in optical thermometry, fingerprint detection, and security ink.
| S-EPMC10031573 | biostudies-literature
Unknown Exploring color tunable emission characteristics of Eu<sup>3+</sup>-doped La<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> phosphors in the glass-ceramic form.
| S-EPMC9032477 | biostudies-literature
Unknown Missing Member in the M<sup>II</sup> M<sup>III</sup> Si<sub>4</sub> N<sub>7</sub> Compound Class: Carbothermal Reduction and Nitridation Synthesis Reveal Substitution of Nitrogen by Carbon and Oxygen in CaLu[Si<sub>4</sub> N<sub>7-2x</sub> C<sub>x</sub> O<sub>x</sub> ]:Eu<sup>2+</sup> /Ce<sup>3+</sup> (x≈0.3).
| S-EPMC9300086 | biostudies-literature