Synthesis, structure, and luminescence properties of SrSiAl2O3N2:Eu2+ phosphors for light-emitting devices and field emission displays

2015 ◽  
Vol 44 (24) ◽  
pp. 11057-11066 ◽  
Author(s):  
Xicheng Wang ◽  
Zhengyan Zhao ◽  
Quansheng Wu ◽  
Yanyan Li ◽  
Chuang Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Band Structure ◽  
Field Emission ◽  
Luminescence Properties ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Field Emission Displays

The crystal structure, band structure, and photoluminescence and cathodoluminescence properties of SrSiAl2O3N2:Eu2+ phosphors were investigated.

Luminescence properties of Eu2+-doped BaSi2O5 as an efficient green phosphor for light-emitting devices and wide color gamut field emission displays

2016 ◽  
Vol 40 (10) ◽  
pp. 8549-8555 ◽  
Author(s):  
Qiang Zhang ◽  
Qian Wang ◽  
Xicheng Wang ◽  
Xin Ding ◽  
Yuhua Wang
Keyword(s):  
Field Emission ◽  
White Light ◽  
Light Emitting Diodes ◽  
Color Gamut ◽  
Green Phosphor ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Field Emission Displays ◽  
Wide Color Gamut ◽  
White Light Emitting Diodes

A green-emitting BaSi2O5:Eu2+ phosphor for white light emitting diodes and field emission displays.

Photoluminescence Properties of Ca3Si2O7: Pr3+ Orange-Red Phosphors Prepared by High-Temperature Solid-State Method

2018 ◽  
Vol 73 (6) ◽  
pp. 555-558 ◽  
Author(s):  
Zhi-Qing Peng ◽  
Rong Chen ◽  
Wen-Lin Feng
Keyword(s):  
Crystal Structure ◽  
High Temperature ◽  
Solid State ◽  
Solid State Method ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Red Phosphors ◽  
Typical Sample ◽  
State Method ◽  
Xrd Patterns

AbstractNovel luminescent materials Ca3-xSi2O7: xPr3+ were successfully prepared by the high-temperature solid-state method. The crystal structure, morphology, and optical spectrum were characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), and spectroscopy, respectively. The XRD patterns of the samples indicate that the crystal structure is monoclinic symmetry. The SEM shows that the selected sample has good crystallinity although its appearance is irregular and scalelike. The peak of the excitation spectrum of the sample is located at around 449 nm, corresponding to 3H4→3P2 transition of Pr3+. The peak of the emission spectrum of the sample is situated at around 612 nm which is attributed to 3P0→3H6 transition of Pr3+, and the colour is orange-red. The optimum concentration for Pr3+ replaced Ca2+ sites in Ca3Si2O7: Pr3+ is 0.75 mol%. The lifetime (8.48 μs) of a typical sample (Ca2.9925Pr0.0075)Si2O7 is obtained. It reveals that orange-red phosphors Ca3-xSi2O7: xPr3+ possess remarkable optical properties and can be used in white light emitting devices.

scholarly journals Crystal structure of 2,3-bis(4-methylphenyl)benzo[g]quinoxaline

2018 ◽  
Vol 74 (4) ◽  
pp. 548-550
Author(s):  
Young-Inn Kim ◽  
Seong-Jae Yun ◽  
Sung Kwon Kang
Keyword(s):  
Crystal Structure ◽  
Rotation Axis ◽  
Ring System ◽  
Dihedral Angles ◽  
Aromatic Rings ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Compound C ◽  
Organic Light ◽  
Phenyl Rings

The title compound, C26H20N2, was obtained during a search for new π-extended ligands with the potential to generate efficient phosphors with iridium(III) for organic light-emitting devices (OLEDs). The benzoquinoxaline ring system is almost planar (r.m.s. deviation = 0.076 Å). A pseudo-twofold rotation axis runs through the midpoints of the C2—C3 and C9—C10 bonds. The two phenyl rings are twisted relative to the benzoquinoxaline ring system, making dihedral angles of 53.91 (4) and 36.86 (6)°. In the crystal, C—H...π (arene) interactions link the molecules, but no π–π interactions between aromatic rings are observed.

scholarly journals A novel single-phase white light emitting phosphor Ca9La(PO4)5(SiO4)F2:Dy3+: synthesis, crystal structure and luminescence properties

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24577-24583 ◽  
Author(s):  
Haikun Liu ◽  
Libing Liao ◽  
Maxim S. Molokeev ◽  
Qingfeng Guo ◽  
Yuanyuan Zhang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Single Phase ◽  
Luminescence Properties ◽  
Light Emitting ◽  
State Technology

A novel single-phase white light emitting phosphor Ca9La(PO4)5(SiO4)F2:Dy3+ was prepared through traditional high-temperature solid state technology.

Modification of the crystal structure of Sr2−xBaxSi(O,N)4: Eu2+ phosphors to improve their luminescence properties

CrystEngComm ◽  
2015 ◽  
Vol 17 (47) ◽  
pp. 9123-9134 ◽  
Author(s):  
Xiaojun Li ◽  
Youjie Hua ◽  
Hongping Ma ◽  
Degang Deng ◽  
Shiqing Xu
Keyword(s):  
Crystal Structure ◽  
White Light ◽  
Light Emitting Diodes ◽  
Luminescence Properties ◽  
Light Emitting ◽  
Red Phosphors ◽  
White Light Emitting Diodes

A series of Sr1.98−xBaxSi(O,N)4: 0.02Eu2+ (0 ≤ x ≤ 0.5) phosphors were synthesized. We anticipate that these materials can be used as green or red phosphors in white light emitting diodes.

Crystal structure and luminescence properties of a single-component white-light-emitting phosphor Ca8 ZnLa(PO4 )7 :Eu2+ ,Mn2+

2017 ◽  
Vol 100 (7) ◽  
pp. 3050-3060 ◽  
Author(s):  
Ruiyu Mi ◽  
Yan-gai Liu ◽  
Lefu Mei ◽  
Chenglong Zhao ◽  
Jian Chen ◽  
...  
Keyword(s):  
Crystal Structure ◽  
White Light ◽  
Single Component ◽  
Luminescence Properties ◽  
Light Emitting
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