Highly Pure White Light-Emitting Single-Component Perovskite Colloidal Quantum Dots

2021 ◽  
Author(s):  
Shixu Yang ◽  
Chenghao Bi ◽  
Jianjun Tian
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Single Component ◽  
Colloidal Quantum Dots ◽  
Light Emitting ◽  
Pure White

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.

A Wafer-Level Integrated White-Light-Emitting Diode Incorporating Colloidal Quantum Dots as a Nanocomposite Luminescent Material

2012 ◽  
Vol 24 (44) ◽  
pp. 5915-5918 ◽  
Author(s):  
Cuong Dang ◽  
Joonhee Lee ◽  
Yu Zhang ◽  
Jung Han ◽  
Craig Breen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diode ◽  
Colloidal Quantum Dots ◽  
Luminescent Material ◽  
Wafer Level ◽  
Light Emitting

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.

Fabrication of a Highly Stable White Light-Emitting Diode With Multiple-Layer Colloidal Quantum Dots

2017 ◽  
Vol 23 (5) ◽  
pp. 1-9 ◽  
Author(s):  
Shun-Chieh Hsu ◽  
Li-Ann Ke ◽  
Hsiu-Ching Lin ◽  
Teng-Ming Chen ◽  
Huang-Yu Lin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diode ◽  
Colloidal Quantum Dots ◽  
Light Emitting ◽  
Multiple Layer

Employing Heavy Metal-Free Colloidal Quantum Dots in Solution-Processed White Light-Emitting Diodes

Nano Letters ◽  
2011 ◽  
Vol 11 (2) ◽  
pp. 329-332 ◽  
Author(s):  
Yu Zhang ◽  
Chuang Xie ◽  
Huaipeng Su ◽  
Jie Liu ◽  
Shawn Pickering ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diodes ◽  
Colloidal Quantum Dots ◽  
Solution Processed ◽  
Light Emitting ◽  
Metal Free ◽  
White Light Emitting Diodes
Sign in / Sign up

Export Citation Format

Share Document