scholarly journals White-light emission from discrete heterometallic lanthanide-directed self-assembled complexes in solution

2017 ◽  
Vol 8 (5) ◽  
pp. 3419-3426 ◽  
Author(s):  
Oxana Kotova ◽  
Steve Comby ◽  
Christophe Lincheneau ◽  
Thorfinnur Gunnlaugsson
Keyword(s):  
White Light ◽  
Light Emission ◽  
The Self ◽  
Lanthanide Ions ◽  
Fine Tuning ◽  
Molar Ratio ◽  
Blue Fluorescence ◽  
Light Emitting ◽  
Assembled Complexes ◽  
Self Assembled

Herein, we have developed a white-light-emitting system based on the formation of discrete lanthanide-based self-assembled complexes using a newly-designed ligand. We demonstrate that fine tuning of the lanthanide ions molar ratio in the self-assemblies combined with the intrinsic blue fluorescence of the ligand allows for the successful emission of pure white light with CIE coordinates of (0.33, 0.34).

A self-assembled white-light-emitting system in aqueous medium based on a macrocyclic amphiphile

2017 ◽  
Vol 53 (2) ◽  
pp. 392-395 ◽  
Author(s):  
Wen-Chao Geng ◽  
Yan-Cen Liu ◽  
Yu-Ying Wang ◽  
Zhe Xu ◽  
Zhe Zheng ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Aqueous Medium ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
High Quantum Yield ◽  
Light Emitting ◽  
High Quantum ◽  
Self Assembled

White light emission was successfully achieved with high quantum yield in a novel FRET platform based on a macrocyclic amphiphile.

scholarly journals Single-Component White Light Emitting CdSexSy Alloy Nanocrystals Through Phosphine-Free Route

2020 ◽  
Author(s):  
Shilpi Jaiswal ◽  
Jyotsana Pathak ◽  
Abhijit Patra
Keyword(s):  
Quantum Yield ◽  
White Light ◽  
Light Emission ◽  
Semiconductor Nanocrystals ◽  
White Light Emission ◽  
Molar Ratio ◽  
Visible Range ◽  
One Pot ◽  
Light Emitting ◽  
Hydrogel Matrix

Semiconductor nanocrystals are promising for display and lighting devices. Herein, we report a facile one-pot synthetic route to fabricate white light emitting CdSexSy nanocrystals with enhanced quantum yield using CdO, S powder, and Se powder as precursors. The phosphine-free route was adopted, employing paraffin oil as the reducing agent and solvent for the fabrication. The optical properties can be effectively tailored by controlling the reaction time and the molar ratio of Se/S. The emission of pristine CdSexSy nanocrystals covered a broad visible range from 400 to 750 nm. The CdSexSy nanocrystals (Se/S = 0.4) exhibited white-light emission with quantum yield of 50 ± 3 % and Commission Internationale de l'Eclairage (CIE) chromaticity coordinates of (0.30, 0.31). The band-edge (~400-450 nm) to trap-state (~550-750 nm) emissions was tuned by controlling the Se/S ratio, and the different shades of white light were obtained. Furthermore, the quantum yield and CIE coordinates of the CdSexSy nanocrystals (Se/S = 0.4) were found to be similar even after 30 days of fabrication, showing the high stability of nanocrystals. The white light emission was retained in nanocrystals-embedded poly(methyl methacrylate) (PMMA) thin film and also in the hydrogel matrix. The one-pot, low-cost, scalable fabrication of white light emitting CdSexSy nanocrystals demonstrated in the present study offers promising scope in the solid-state display applications. <br>

A benzoperylene probe self-assembled on polyethyleneimine/manganese doped ZnS quantum dots: a new nanocomposite for bright and tunable white light emission

RSC Advances ◽  
2016 ◽  
Vol 6 (86) ◽  
pp. 83110-83116 ◽  
Author(s):  
Lijia Sang ◽  
Meiding Yang ◽  
Huipeng Zhou ◽  
Xinan Huang ◽  
Cong Yu
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Light Emitting ◽  
Self Assembled ◽  
First Time

A white light emitting benzoperylene probe-polyethyleneimine capped quantum dots nanocomposite has been synthesized for the first time.

scholarly journals White light emission of IFP-1 by in situ co-doping of the MOF pore system with Eu3+and Tb3+

2015 ◽  
Vol 3 (18) ◽  
pp. 4623-4631 ◽  
Author(s):  
Suvendu Sekhar Mondal ◽  
Karsten Behrens ◽  
Philipp R. Matthes ◽  
Fabian Schönfeld ◽  
Jörn Nitsch ◽  
...  
Keyword(s):  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Lanthanide Ions ◽  
Pore System ◽  
Light Emitting ◽  
Co Doping

A three color white light emitting MOF with temperature and dopant dependent chromaticity is achieved by in situ co-doping of IFP-1 with lanthanide ions.

Lanthanide coordination polymers constructed from 5-(1H-tetrazol-5-yl)isophthalic acid ligand: white light emission and color tuning

CrystEngComm ◽  
2015 ◽  
Vol 17 (31) ◽  
pp. 6030-6036 ◽  
Author(s):  
Jia Jia ◽  
Jianing Xu ◽  
Shengyan Wang ◽  
Pengcheng Wang ◽  
Lijuan Gao ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
White Light ◽  
Self Assembly ◽  
Light Emission ◽  
Isophthalic Acid ◽  
The Self ◽  
Lanthanide Ions ◽  
Color Tuning ◽  
Lanthanide Coordination Polymers ◽  
Acid Ligand

A series of lanthanide coordination polymers (LnCPs), namely [Ln(TZI) (H2O)5]n(1–5) [Ln = Nd (1), Eu (2), Gd (3), Tb (4) and Sm (5)], were synthesized through the self-assembly of 5-(1H-tetrazol-5-yl)isophthalic acid (H3TZI) ligand and lanthanide ions.

Water-stable lanthanide-based metal–organic gel for the detection of organic amines and white-light emission

2020 ◽  
Vol 8 (39) ◽  
pp. 13648-13654
Author(s):  
Dongxu Gu ◽  
Weiting Yang ◽  
Duoyu Lin ◽  
Xudong Qin ◽  
Yonghang Yang ◽  
...  
Keyword(s):  
White Light ◽  
Light Emission ◽  
Organic Ligands ◽  
Lanthanide Ions ◽  
Light Emitting ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Organic Amines ◽  
Organic Gel ◽  
Luminescence Characteristics

A lanthanide metal–organic gel was prepared as a fluorescent probe for detecting organic amines and serving as a white-light emitting material based on the different luminescence characteristics of its lanthanide ions and organic ligands.

scholarly journals Single-Component White Light Emitting CdSexSy Alloy Nanocrystals Through Phosphine-Free Route

2020 ◽  
Author(s):  
Shilpi Jaiswal ◽  
Jyotsana Pathak ◽  
Abhijit Patra
Keyword(s):  
Quantum Yield ◽  
White Light ◽  
Light Emission ◽  
Semiconductor Nanocrystals ◽  
White Light Emission ◽  
Molar Ratio ◽  
Visible Range ◽  
One Pot ◽  
Light Emitting ◽  
Hydrogel Matrix

Semiconductor nanocrystals are promising for display and lighting devices. Herein, we report a facile one-pot synthetic route to fabricate white light emitting CdSexSy nanocrystals with enhanced quantum yield using CdO, S powder, and Se powder as precursors. The phosphine-free route was adopted, employing paraffin oil as the reducing agent and solvent for the fabrication. The optical properties can be effectively tailored by controlling the reaction time and the molar ratio of Se/S. The emission of pristine CdSexSy nanocrystals covered a broad visible range from 400 to 750 nm. The CdSexSy nanocrystals (Se/S = 0.4) exhibited white-light emission with quantum yield of 50 ± 3 % and Commission Internationale de l'Eclairage (CIE) chromaticity coordinates of (0.30, 0.31). The band-edge (~400-450 nm) to trap-state (~550-750 nm) emissions was tuned by controlling the Se/S ratio, and the different shades of white light were obtained. Furthermore, the quantum yield and CIE coordinates of the CdSexSy nanocrystals (Se/S = 0.4) were found to be similar even after 30 days of fabrication, showing the high stability of nanocrystals. The white light emission was retained in nanocrystals-embedded poly(methyl methacrylate) (PMMA) thin film and also in the hydrogel matrix. The one-pot, low-cost, scalable fabrication of white light emitting CdSexSy nanocrystals demonstrated in the present study offers promising scope in the solid-state display applications. <br>

scholarly journals Nucleotide-based green synthesis of lanthanide coordination polymers for tunable white-light emission

2020 ◽  
Vol 9 (1) ◽  
pp. 578-585
Author(s):  
Yaoyao Zhang ◽  
Baoxia Liu ◽  
Qi Shen ◽  
Xiuhua Wei ◽  
Yanli Zhou ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Coordination Polymers ◽  
White Light ◽  
Light Emission ◽  
Synthesis Method ◽  
Adenosine Monophosphate ◽  
White Light Emission ◽  
Lanthanide Ions ◽  
Light Emitting ◽  
Transmission Electron

AbstractWhite-light emitting lanthanide(iii) metal-organic coordination polymers (LMOCPs) were prepared via a green synthesis method performed in pure aqueous solution at room temperature without using toxic solvent and reagents. This kind of LMOCP, denoted as adenosine monophosphate (AMP)/Ln-CIP, was composed of Ln3+ {Ln = Tb (1), Eu (2), and Gd (3)}, hydrosoluble biomolecule of AMP, and nonpoisonous antenna ligand of CIP (ciprofloxacin). The complex of Tb(1), Eu(2), and Gd(3) in AMP/Ln-CIP emits strong green, red, and blue light, respectively. With careful adjustment of the doping mole ratio of the three lanthanide ions {Ln = Tb:Eu:Gd = 0.1:0.9:99.0} in one framework, white light-emission can indeed be achieved. AMP/Ln-CIP is network-structural and amorphous by transmission electron microscope and X-ray diffraction analysis. The fluorescence lifetime and quantum yield of AMP/Ln-CIP are 4.36 ms and 36.5%, respectively.

White-light-emitting properties of SrTiO3:Pr3+ nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (35) ◽  
pp. 27491-27495 ◽  
Author(s):  
Wei Tang ◽  
Ye Sun ◽  
Miao Yu ◽  
Xiao Liu ◽  
Yongqi Yin ◽  
...  
Keyword(s):  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Light Emitting

White-light emission from SrTiO3:Pr3+ nanoparticles has been achieved by tuning combination of the 3P0 and 1D2-related blue to red emissions.

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