Aggregation-induced ratiometric emission and mechanochromic luminescence in a pyrene-benzohydrazonate conjugate

2018 ◽  
Vol 42 (15) ◽  
pp. 12644-12648 ◽  
Author(s):  
Yao Li ◽  
Wei Huang ◽  
Juan Yong ◽  
Shuaidan Huang ◽  
Yujie Li ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Yield ◽  
Color Change ◽  
High Solid ◽  
Mechanochromic Luminescence

A structure tunable pyrene benzohydrazonate-based molecular platform exhibits a drastic aggregation-induced color change and a high solid-state quantum yield.

Series ofO,N,O-Tridentate Ligands Zinc(II) Complexes with High Solid-State Photoluminescence Quantum Yield

2014 ◽  
Vol 2014 (16) ◽  
pp. 2695-2703 ◽  
Author(s):  
Fabio Borbone ◽  
Ugo Caruso ◽  
Mauro Causà ◽  
Sandra Fusco ◽  
Barbara Panunzi ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Yield ◽  
Tridentate Ligands ◽  
High Solid ◽  
Photoluminescence Quantum Yield

scholarly journals Zn(II) Heteroleptic Halide Complexes with 2-Halopyridines: Features of Halogen Bonding in Solid State

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3393
Author(s):  
Mikhail A. Vershinin ◽  
Marianna I. Rakhmanova ◽  
Alexander S. Novikov ◽  
Maxim N. Sokolov ◽  
Sergey A. Adonin
Keyword(s):  
Solid State ◽  
Quantum Yield ◽  
Crystal Packing ◽  
Halogen Bonding ◽  
Molecular Complexes ◽  
Substituted Pyridines ◽  
Halide Complexes

Reactions between Zn(II) dihalides and 2-halogen-substituted pyridines 2-XPy result in a series of heteroleptic molecular complexes [(2-XPy)2ZnY2] (Y = Cl, X = Cl (1), Br (2), I (3); Y = Br, X = Cl (4), Br (5), I (6), Y = I, X = Cl (7), Br (8), and I (9)). Moreover, 1–7 are isostructural (triclinic), while 8 and 9 are monoclinic. In all cases, halogen bonding plays an important role in formation of crystal packing. Moreover, 1–9 demonstrate luminescence in asolid state; for the best emitting complexes, quantum yield (QY) exceeds 21%.

scholarly journals Diverse Coordination Numbers and Geometries in Pyridyl Adducts of Lanthanide(III) Complexes Based on β-Diketonate

Inorganics ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 74
Author(s):  
Franz A. Mautner ◽  
Florian Bierbaumer ◽  
Roland C. Fischer ◽  
Ana Torvisco ◽  
Ramon Vicente ◽  
...  
Keyword(s):  
Rare Earth ◽  
Solid State ◽  
Quantum Yield ◽  
Rare Earth Complexes ◽  
Luminescence Spectra ◽  
Excitation Wavelength ◽  
Coordination Numbers ◽  
State Luminescence

Ten mononuclear rare earth complexes of formula [La(btfa)3(H2O)2] (1), [La(btfa)3(4,4′-Mt2bipy)] (2), [La(btfa)3(4,4′-Me2bipy)2] (3), [La(btfa)3(5,5′-Me2bipy)2] (4), [La(btfa)3(terpy)] (5), [La(btfa)3(phen)(EtOH)] (6), [La(btfa)3(4,4′-Me2bipy)(EtOH)] (7), [La(btfa)3(2-benzpy)(MeOH)] (8), [Tb(btfa)3(4,4′-Me2bipy)] (9) and (Hpy)[Eu(btfa)4] (10), where btfa = 4,4,4-trifuoro-1-phenylbutane-1,3-dionato anion, 4,4′-Mt2bipy = 4,4′-dimethoxy-2,2′-bipyridine, 4,4′-Me2bipy = 4,4′-dimethyl-2,2′-bipyridine, 5,5′-Me2bipy = 5,5′-dimethyl-2,2′-bipyridine, terpy = 2,2′:6′,2′-terpyridine, phen = 1,10-phenathroline, 2-benzpy = 2-(2-pyridyl)benzimidazole, Hpy = pyridiniumH+ cation) have been synthesized and structurally characterized. The complexes display coordination numbers (CN) eight for 1, 2, 9, 10, nine for 5, 6, 7, 8 and ten for 3 and 4. The solid-state luminescence spectra of Tb-9 and Eu-10 complexes showed the same characteristic bands predicted from the Tb(III) and Eu(III) ions. The Overall Quantum Yield measured (ϕTOT) at the excitation wavelength of 371 nm for both compounds yielded 1.04% for 9 and up to 34.56% for 10.

Synthesis, photoluminescence and Judd–Ofelt analysis of red LiGd5P2O13 : Eu3+ phosphors for white LEDs

RSC Advances ◽  
2015 ◽  
Vol 5 (67) ◽  
pp. 54622-54628 ◽  
Author(s):  
Xinguo Zhang ◽  
Liya Zhou ◽  
Qi Pang ◽  
Menglian Gong
Keyword(s):  
Thermal Stability ◽  
Solid State ◽  
Quantum Yield ◽  
Solid State Reaction ◽  
Red Light ◽  
Solid State Reaction Method ◽  
Reaction Method ◽  
White Leds ◽  
Good Thermal Stability ◽  
Red Phosphors

LiGd5P2O13 : Eu3+ red phosphors were prepared by solid-state reaction method. Phosphors could be efficiently excited by NUV/blue light and emit pure-red light. LiGd5P2O13 : Eu3+ shows good thermal stability with quantum yield of 46.5%.

Facile preparation of solid-state fluorescent carbon dots with high fluorescence quantum yield and application in rapid latent fingerprints detection

2021 ◽  
Author(s):  
Hai-Jiao Wang ◽  
Wan-Yi Hou ◽  
Jing Kang ◽  
Xin-Yu Zhai ◽  
Hongli Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Yield ◽  
Fluorescence Quantum Yield ◽  
Latent Fingerprints ◽  
Energy Resonance ◽  
Facile Preparation ◽  
High Fluorescence ◽  
Fluorescent Carbon Dots ◽  
High Fluorescence Quantum Yield ◽  
Resonance Transfer

Due to the direct π - π interaction and excessive energy resonance transfer, it is very challenging to prepare CDs with high fluorescence quantum yield (QY) in solid state. In...

Photoresponsive triazole-based donor–acceptor molecules: color change and heat/air-stable diradicals

2019 ◽  
Vol 7 (10) ◽  
pp. 3100-3104 ◽  
Author(s):  
Ning-Ning Zhang ◽  
Rong-Jian Sa ◽  
Shan-Shan Sun ◽  
Ming-De Li ◽  
Ming-Sheng Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Charge Separation ◽  
Color Change ◽  
Heat Stable ◽  
Donor Acceptor ◽  
Acceptor Molecules

An unprecedented series of triazole-based donor–acceptor molecules were found to form highly air/heat-stable triplet diradicals in the solid state accompanied by a color change after photoinduced intramolecular charge separation.

scholarly journals Sequential halochromic/mechanochromic luminescence of pyridyl-substituted solid-state emissive dyes: thermally controlled stepwise recovery of the original emission color

CrystEngComm ◽  
2019 ◽  
Vol 21 (38) ◽  
pp. 5699-5706 ◽  
Author(s):  
Suguru Ito ◽  
Chika Nishimoto ◽  
Sayaka Nagai
Keyword(s):  
Solid State ◽  
Emission Color ◽  
In Series ◽  
Temperature Controlled ◽  
Mechanochromic Luminescence

A stepwise temperature-controlled emission-color switch has been achieved in a system that combines halochromic and mechanochromic luminescence in series.

Solid-state thiolate-stabilized copper nanoclusters with ultrahigh photoluminescence quantum yield for white light-emitting devices

Nanoscale ◽  
2020 ◽  
Vol 12 (29) ◽  
pp. 15791-15799 ◽  
Author(s):  
Hao-Hua Deng ◽  
Qiong-Qiong Zhuang ◽  
Kai-Yuan Huang ◽  
Paramasivam Balasubramanian ◽  
Zhen Lin ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Yield ◽  
White Light ◽  
Copper Nanoclusters ◽  
Light Emitting ◽  
Aggregation Induced Emission ◽  
Emission Properties ◽  
Light Emitting Devices ◽  
Photoluminescence Quantum Yield

White-light-emitting devices are successfully fabricated by using solid-state copper nanoclusters as the sole phosphors with aggregation-induced emission properties.

High Solid‐State Near Infrared Emissive Organic Fluorophores from Thiadiazole[3,4‐c]Pyridine Derivatives for Efficient Simple Solution‐Processed Nondoped Near Infrared OLEDs

2020 ◽  
Vol 30 (31) ◽  
pp. 2002481 ◽  
Author(s):  
Pattarawadee Therdkatanyuphong ◽  
Pongsakorn Chasing ◽  
Chokchai Kaiyasuan ◽  
Sumita Boonnab ◽  
Taweesak Sudyoadsuk ◽  
...  
Keyword(s):  
Solid State ◽  
Near Infrared ◽  
Simple Solution ◽  
Pyridine Derivatives ◽  
Solution Processed ◽  
Organic Fluorophores ◽  
High Solid
Sign in / Sign up

Export Citation Format

Share Document