scholarly journals Erratum: Corrigendum: High Color-Purity Green, Orange, and Red Light-Emitting Diodes Based on Chemically Functionalized Graphene Quantum Dots

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Woosung Kwon ◽  
Young-Hoon Kim ◽  
Ji-Hee Kim ◽  
Taehyung Lee ◽  
Sungan Do ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Emitting Diodes ◽  
Red Light ◽  
Graphene Quantum Dots ◽  
Color Purity ◽  
Functionalized Graphene ◽  
Light Emitting ◽  
High Color Purity

scholarly journals High Color-Purity Green, Orange, and Red Light-Emitting Diodes Based on Chemically Functionalized Graphene Quantum Dots

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Woosung Kwon ◽  
Young-Hoon Kim ◽  
Ji-Hee Kim ◽  
Taehyung Lee ◽  
Sungan Do ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Transient Absorption ◽  
Energy Levels ◽  
Red Light ◽  
Graphene Quantum Dots ◽  
Chemical Properties ◽  
Color Purity ◽  
Light Emitting ◽  
Aniline Derivatives ◽  
High Color Purity

Abstract Chemically derived graphene quantum dots (GQDs) to date have showed very broad emission linewidth due to many kinds of chemical bondings with different energy levels, which significantly degrades the color purity and color tunability. Here, we show that use of aniline derivatives to chemically functionalize GQDs generates new extrinsic energy levels that lead to photoluminescence of very narrow linewidths. We use transient absorption and time-resolved photoluminescence spectroscopies to study the electronic structures and related electronic transitions of our GQDs, which reveals that their underlying carrier dynamics is strongly related to the chemical properties of aniline derivatives. Using these functionalized GQDs as lumophores, we fabricate light-emitting didoes (LEDs) that exhibit green, orange, and red electroluminescence that has high color purity. The maximum current efficiency of 3.47 cd A−1 and external quantum efficiency of 1.28% are recorded with our LEDs; these are the highest values ever reported for LEDs based on carbon-nanoparticle phosphors. This functionalization of GQDs with aniline derivatives represents a new method to fabricate LEDs that produce natural color.

65‐3: Quantum Dot Light‐emitting Diodes with High Color Purity RGB Cadmium‐Free Quantum Dots

2021 ◽  
Vol 52 (1) ◽  
pp. 953-956
Author(s):  
Tatsuya Ryowa ◽  
Yusuke Sakakibara ◽  
Tadashi Kobashi ◽  
Keisuke Kitano ◽  
Masaya Ueda ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Color Purity ◽  
Light Emitting ◽  
High Color Purity

Highly luminescent flexible amino-functionalized graphene quantum dots@cellulose nanofiber–clay hybrids for white-light emitting diodes

2015 ◽  
Vol 3 (15) ◽  
pp. 3536-3541 ◽  
Author(s):  
H. Tetsuka ◽  
A. Nagoya ◽  
R. Asahi
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diodes ◽  
Graphene Quantum Dots ◽  
Cellulose Nanofiber ◽  
Functionalized Graphene ◽  
Light Emitting ◽  
White Leds ◽  
White Light Emitting Diodes

Bright colorful luminescent flexible amino-functionalized graphene quantum dots (af-GQDs)@cellulose nanofiber (CNF)–clay hybrids are potentially applicable in white LEDs.

Blue Graphene Quantum Dots with High Color Purity by Controlling Subdomain Formation for Light-Emitting Devices

2020 ◽  
Vol 3 (7) ◽  
pp. 6469-6477 ◽  
Author(s):  
Hyewon Yoon ◽  
Hyung Suk Kim ◽  
Jungmo Kim ◽  
Minsu Park ◽  
Byunghoon Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Color Purity ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
High Color Purity

High performance red phosphorescent organic electroluminescent devices with characteristic mechanisms by utilizing terbium or gadolinium complexes as sensitizers

2017 ◽  
Vol 5 (8) ◽  
pp. 2066-2073 ◽  
Author(s):  
Rongzhen Cui ◽  
Weiqiang Liu ◽  
Liang Zhou ◽  
Xuesen Zhao ◽  
Yunlong Jiang ◽  
...  
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Color Purity ◽  
Electroluminescent Devices ◽  
Light Emitting ◽  
Organic Light ◽  
Gadolinium Complexes ◽  
Organic Electroluminescent ◽  
High Color Purity

High performance sensitized organic light-emitting diodes with high color purity were obtained by utilizing terbium or gadolinium complexes as sensitizers.

Solution Processed Fabrication of Perovskite Light-Emitting Diodes: Towards Low Cost and Commercial Applications

2021 ◽  
Author(s):  
Jianfeng Zhang ◽  
Bin Wei ◽  
Lin Wang ◽  
Xuyong Yang
Keyword(s):  
Light Emitting Diodes ◽  
Low Cost ◽  
Color Purity ◽  
Color Gamut ◽  
Light Emitting ◽  
Metal Halide Perovskite ◽  
Wide Color Gamut ◽  
Halide Perovskite ◽  
Commercial Applications ◽  
High Color Purity

Metal halide perovskite light-emitting diodes (PeLEDs) have emerged as one of the most promising candidates for next-generation high-resolution displays, due to their wide color gamut, high color purity and low-cost...

Sign in / Sign up

Export Citation Format

Share Document