Insight into a concentration-sensitive red-emitting phosphor Li2Ca4Si4O13:Eu3+ for multifunctional applications: Crystal structure, electronic structure and luminescent properties

2020 ◽  
Vol 46 (3) ◽  
pp. 2845-2852 ◽  
Author(s):  
Quansheng Wu ◽  
Quan Zhao ◽  
Penghui Zheng ◽  
Wenbo Chen ◽  
Dongfeng Xiang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Luminescent Properties ◽  
Insight Into ◽  
Red Emitting Phosphor

Polymorphism and the influence of crystal structure on the luminescence of the opto-electronic material 4,4′-bis(9-carbazolyl)biphenyl

CrystEngComm ◽  
2014 ◽  
Vol 16 (33) ◽  
pp. 7621-7625 ◽  
Author(s):  
Cody J. Gleason ◽  
Jordan M. Cox ◽  
Ian M. Walton ◽  
Jason B. Benedict
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Electronic Material ◽  
Single Crystal ◽  
Charge Transport ◽  
Luminescent Properties ◽  
Electronic Structure Calculations ◽  
Electronic Charge ◽  
Single Crystal Structures ◽  
Structure Calculations

Single crystal structures, luminescent properties and electronic structure calculations of three polymorphs of the opto-electronic charge transport material 4,4′-bis(9-carbazolyl)biphenyl.

Crystal and electronic structure of the new ternary phosphide Ho5Pd19P12

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Olha Zhak ◽  
Oksana Karychort ◽  
Volodymyr Babizhetskyy ◽  
Chong Zheng
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Structure Property ◽  
X Ray Diffraction ◽  
Structure Property Relationships ◽  
Metallic Bonding ◽  
Crystal And Electronic Structure ◽  
Insight Into

Abstract The title compound was prepared from the pure elements by sintering. The crystal structure was investigated by means of powder X-ray diffraction data. Ho5Pd19P12 exhibits the hexagonal Ho5Ni19P12-type structure with space group P 6 ‾ 2 m $P‾{6}2m$ , a = 13.1342(2), c = 3.9839(1) Å, R I = 0.060, R p = 0.080. The crystal structure can be described as a combination of two types of the structural units, [HoPd6P3] and [Ho3Pd10P6], respectively, mutually displaced by 1/2 along the crystallographic c axis. Quantum chemical calculations have been performed to analyze the electronic structure and provide deeper insight into the structure-property relationships. The results of the quantum chemical calculations indicate that the material features metallic bonding between Ho and Pd and covalent bonding between Pd and P.

A new diphosphate Li2Na2P2O7: Synthesis, crystal structure, electronic structure and luminescent properties

2019 ◽  
Vol 269 ◽  
pp. 125-131 ◽  
Author(s):  
Dan Zhao ◽  
Ji Zhao ◽  
Ya-Li Xue ◽  
Bao-Fu Hu ◽  
Xia Xin ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Luminescent Properties

Synthesis, electronic structure and luminescent properties of a new red-emitting phosphor GdBiW2O9:Eu3+

2017 ◽  
Vol 685 ◽  
pp. 177-184 ◽  
Author(s):  
Zhi Xie ◽  
Weiwei Zhou ◽  
Wang Zhao ◽  
Hao Zhang ◽  
Qichang Hu ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Luminescent Properties ◽  
Red Emitting Phosphor

Influence of crystal structure, ligand environment and morphology on CoL-edge XAS spectral characteristics in cobalt compounds

2015 ◽  
Vol 22 (6) ◽  
pp. 1450-1458 ◽  
Author(s):  
D. K. Bora ◽  
X. Cheng ◽  
M. Kapilashrami ◽  
P. A. Glans ◽  
Y. Luo ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Metal Ion ◽  
Spectral Characteristics ◽  
Branching Ratio ◽  
Central Metal ◽  
X Ray ◽  
Cobalt Compounds ◽  
X Ray Absorption ◽  
Insight Into

The electronic structure of a material plays an important role in its functionality for different applications which can be probed using synchrotron-based spectroscopy techniques. Here, various cobalt-based compounds, differing in crystal structure, ligands surrounding the central metal ion and morphology, have been studied by soft X-ray absorption spectroscopy (XAS) at the CoL-edge in order to measure the effect of these parameters on the electronic structure. A careful qualitative analysis of the spectral branching ratio and relative intensities of theL3andL2peaks provide useful insight into the electronic properties of compounds such as CoO/Co(OH)2, CoCl2.6H2O/CoF2.4H2O, CoCl2/CoF2, Co3O4(bulk/nano/micro). For further detailed analysis of the XAS spectra, quantitative analysis has been performed by fitting the spectral profile with simulated spectra for a number of cobalt compounds using crystal field atomic multiplet calculations.

scholarly journals Crystal structure determination as part of an ongoing undergraduate organic laboratory project: 5-[(E)-styryl]-1,3,4-oxathiazol-2-one

2017 ◽  
Vol 73 (9) ◽  
pp. 1298-1301 ◽  
Author(s):  
Trevor R. Nason ◽  
Melbourne J. Schriver ◽  
Arthur D. Hendsbee ◽  
Jason D. Masuda
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Title Compound ◽  
Phenyl Ring ◽  
Careful Consideration ◽  
Dihedral Angles ◽  
Compound C ◽  
Centroid Distance ◽  
Organic Laboratory ◽  
Insight Into

The title compound, C10H7NO2S, provides the first structure of an α-alkenyl oxathiazolone ring. The phenyl ring and the oxathiazolone groups make dihedral angles of 0.3 (3) and −2.8 (3)°, respectively, with the plane of the central alkene group; the dihedral angle between the rings is 2.68 (8)°. A careful consideration of bond lengths provides insight into the electronic structure and reactivity of the title compound. In the crystal, extended π-stacking is observed parallel to thea-axis direction, consisting of cofacial head-to-tail dimeric units [centroid–centroid distance of 3.6191 (11) Å]. These dimeric units are separated by a slightly longer centroid–centroid distance of 3.8383 (12) Å, generating infinite stacks of molecules.

Synthesis, structure and luminescent properties of a new blue-green-emitting garnet phosphor Ca2LuScZrAl2GeO12:Ce3+

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 68852-68859 ◽  
Author(s):  
Yaling Zheng ◽  
Weidong Zhuang ◽  
Xianran Xing ◽  
Jiyou Zhong ◽  
Ronghui Liu ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Luminescence Property ◽  
Luminescent Properties ◽  
Structure Study ◽  
The Matrix ◽  
Photo Ionization

Phosphor Ca2LuZrScAl2GeO12:Ce is synthesized. Crystal structure, electronic structure and luminescence property of samples are investigated. Electronic structure study indicates that photo-ionization easy occur when the matrix contains Ge4+ or Zr4+.

Enhancement of the red emission in Ba3(PO4)2:Eu3+ by addition of charge compensator Na+

2018 ◽  
Vol 32 (34n36) ◽  
pp. 1840063 ◽  
Author(s):  
Dandan Zhang ◽  
Huaxing Xiao ◽  
Wei Jiang ◽  
Xia Cao ◽  
Lu Huang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Red Light ◽  
Emission Spectra ◽  
Luminescent Properties ◽  
Host Crystal ◽  
Red Emission ◽  
Uv Led ◽  
Charge Compensator ◽  
Red Emitting Phosphor

Ba[Formula: see text](PO4)2:0.04Eu[Formula: see text] (S1) and Ba[Formula: see text]Na[Formula: see text](PO4)2:0.04Eu[Formula: see text] (S2) were prepared by solid state reaction. The phases and luminescent properties of the obtained phosphors were characterized. The results demonstrate that the phosphors particles emit an intensive red light under excitation at 395 nm. Both phosphors can be efficiently excited by ultraviolet and blue light, and the emission spectra mainly consist of two emission peaks at 591 nm and 611 nm. The crystallographic sites of Eu[Formula: see text] ions in Ba3(PO4)2 host were discussed on the base of emission spectra and its host crystal structure. By introducing the charge compensator Na[Formula: see text] into the S1 phosphor, its emission intensity was enhanced, indicating that S2 could serve as a promising red-emitting phosphor for UV LED applications.

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