Novel ultrabright luminescent copper nanoclusters and application in light-emitting devices

2021 ◽  
Vol 57 (77) ◽  
pp. 9890-9893
Author(s):  
Qiu-Qin Huang ◽  
Mei-Yue Hu ◽  
Yan-Li Li ◽  
Nan-Nan Chen ◽  
Yi Li ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Single Component ◽  
Copper Nanoclusters ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Phosphorescence Emission ◽  
White Light Emitting Diodes

Ultra-small tri/tetra-nuclear copper nanoclusters (Cu3/Cu4) exhibit ultrabright phosphorescence emission (Фem = 71.8 and 63.5%). Cu3 is firstly applied as a single component phosphor for white light-emitting diodes with favourable characteristics.

scholarly journals Solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes

2021 ◽  
Vol 10 (1) ◽  
pp. 465-477
Author(s):  
Longshi Rao ◽  
Qing Zhang ◽  
Mingfu Wen ◽  
Zhongfa Mao ◽  
Huaxian Wei ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diodes ◽  
Carbon Quantum Dots ◽  
Single Component ◽  
Great Promise ◽  
Solvent Engineering ◽  
Light Emitting ◽  
White Emission ◽  
White Light Emitting Diodes

Abstract White light-emitting diodes (WLEDs) hold great promise in lighting, display, and visible light communication devices, and single-component white emission carbon quantum dots (SCWE-CQDs) as the key component of WLEDs have many outstanding advantages. However, rapid and efficient synthesis of SCWE-CQDs with high photoluminescence quantum yield (PLQY) and stability remains challenging. Here, we report a novel solvent engineering strategy to obtain highly photoluminescent SCWE-CQDs by controlling the dilution ratios between N,N-dimethylformamide (DMF) and pristine red carbon quantum dots (RCQDs) solution. By optimizing synthesis conditions, the relative PLQY of the SCWE-CQDs solution reached 53%. Morphological, structural, and optical property characterizations indicate that the combined action of the hydrogen bond (HB) effect and the size effect leads to the blue shift of RCQDs, but the HB effect is more dominant than the particle size in causing large spectral shifts. In addition, the WLEDs with high color rendering index of 89 and remarkable reliability were obtained based on the highly photoluminescent SCWE-CQDs. This facile solvent engineering approach for synthesizing tunable emission CQDs will promote the progress of carbon-based luminescent materials for applications in optoelectronic devices.

Recent advances in white light-emitting diodes of carbon quantum dots

Nanoscale ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 4826-4832 ◽  
Author(s):  
Ping He ◽  
Yuxin Shi ◽  
Ting Meng ◽  
Ting Yuan ◽  
Yunchao Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Carbon Quantum Dots ◽  
Single Component ◽  
Light Emitting ◽  
Recent Advances ◽  
White Light Emitting Diodes

In this mini review, we update the latest research in the design of high-performance WLEDs with different correlated color temperatures by tuning the red component using red emissive CQDs and single-component white emissive CQDs.

Solvent-Induced Self-Assembly of Copper Nanoclusters for White Light Emitting Diodes

2021 ◽  
Author(s):  
Shujin Zhou ◽  
Shanshan Zhang ◽  
Haiping Li ◽  
Di Sun ◽  
Jinzhong Zhang ◽  
...  
Keyword(s):  
White Light ◽  
Self Assembly ◽  
Light Emitting Diodes ◽  
Copper Nanoclusters ◽  
Light Emitting ◽  
White Light Emitting Diodes

The Fabrication and Characterization of Single-Component Polymeric White-Light-Emitting Diodes

2005 ◽  
Vol 15 (10) ◽  
pp. 1647-1655 ◽  
Author(s):  
S. K. Lee ◽  
D.-H. Hwang ◽  
B.-J. Jung ◽  
N. S. Cho ◽  
J. Lee ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Single Component ◽  
Light Emitting ◽  
Fabrication And Characterization ◽  
White Light Emitting Diodes

Achieving 46% efficient white-light emissive carbon dot-based material by enhancing phosphorescence for single-component white-light-emitting diodes

2021 ◽  
Author(s):  
Qijun Li ◽  
Yuchen Li ◽  
Shuai Meng ◽  
Jian Yang ◽  
Yukun Qin ◽  
...  
Keyword(s):  
White Light ◽  
Carbon Dots ◽  
Single Phase ◽  
Light Emitting Diodes ◽  
Emission Feature ◽  
Single Component ◽  
Dual Emission ◽  
Carbon Dot ◽  
Light Emitting ◽  
White Light Emitting Diodes

White-light-emitting carbon dots (CDs) with fluorescence/phosphorescence dual-emission feature is great importance for single-phase white-light-emitting diodes (WLEDs), but so far rather limited due to weak phosphorescence. Herein, a highly efficient white-light...

White light emissive Europium complex and their versatile applications

2021 ◽  
Author(s):  
Rajamouli Boddula ◽  
Jairam Tagare ◽  
Kasturi Singh ◽  
Sivakumar Vaidyanathan
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Europium Complex ◽  
Single Component ◽  
Light Emitting ◽  
New Class ◽  
White Light Emitting Diodes

Dual emissive single-component white light emissive luminogens are promising color convertors for white light emitting diodes. In this context, a new class of bipolar phenanthroimidazole based (N1 functionalization with Ph,...

A tunable single-component warm white-light Sr3Y(PO4)3:Eu2+,Mn2+ phosphor for white-light emitting diodes

2011 ◽  
Vol 13 (33) ◽  
pp. 15077 ◽  
Author(s):  
Ning Guo ◽  
Yeju Huang ◽  
Mei Yang ◽  
Yanhua Song ◽  
Yuhua Zheng ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Single Component ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes
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