Surface-Modified Quantum Dots Enhanced Luminescence Polymer Nanocomposites Light Emitting Diode

2006 ◽  
Author(s):  
Kung-Hwa Wei
Keyword(s):  
Quantum Dots ◽  
Polymer Nanocomposites ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Enhanced Luminescence ◽  
Surface Modified

scholarly journals Red Light-Emitting Diodes with All-Inorganic CsPbI3/TOPO Composite Nanowires Color Conversion Films

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Lung-Chien Chen ◽  
Yi-Tsung Chang ◽  
Ching-Ho Tien ◽  
Yu-Chun Yeh ◽  
Zong-Liang Tseng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Emitting Diode ◽  
Red Light ◽  
Trioctylphosphine Oxide ◽  
Optical And Electrical Properties ◽  
Colloidal Solutions ◽  
High Quality ◽  
Light Emitting ◽  
Hot Injection ◽  
Color Conversion

AbstractThis work presents a method for obtaining a color-converted red light source through a combination of a blue GaN light-emitting diode and a red fluorescent color conversion film of a perovskite CsPbI3/TOPO composite. High-quality CsPbI3 quantum dots (QDs) were prepared using the hot-injection method. The colloidal QD solutions were mixed with different ratios of trioctylphosphine oxide (TOPO) to form nanowires. The color conversion films prepared by the mixed ultraviolet resin and colloidal solutions were coated on blue LEDs. The optical and electrical properties of the devices were measured and analyzed at an injection current of 50 mA; it was observed that the strongest red light intensity was 93.1 cd/m2 and the external quantum efficiency was 5.7% at a wavelength of approximately 708 nm when CsPbI3/TOPO was 1:0.35.

Solution-Processed White Light-Emitting Diode Utilizing Hybrid Polymer and Red–Green–Blue Quantum Dots

2012 ◽  
Vol 51 ◽  
pp. 09MH03
Author(s):  
Byoung Wook Kwon ◽  
Dong Ick Son ◽  
Dong-Hee Park ◽  
Heon-Jin Choi ◽  
Won-Kook Choi
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diode ◽  
Hybrid Polymer ◽  
Solution Processed ◽  
Light Emitting

25.1: Invited Paper: Quantum dots based full-color display on micro-light-emitting-diode technology

2018 ◽  
Vol 49 ◽  
pp. 267-270 ◽  
Author(s):  
CHIH-HAO LIN ◽  
CHUN-FU LEE ◽  
CHIEN-CHUNG LIN ◽  
CHEN-HSIEN CHU ◽  
CHIN-WEI SHER ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Color Display ◽  
Full Color

scholarly journals Use of Hybrid PEDOT:PSS/Metal Sulfide Quantum Dots for a Hole Injection Layer in Highly Efficient Green Phosphorescent Organic Light-Emitting Diodes

2021 ◽  
Vol 9 ◽  
Author(s):  
Wenqing Zhu ◽  
Kuangyu Ding ◽  
Chen Yi ◽  
Ruilin Chen ◽  
Bin Wei ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Efficiency ◽  
Light Emitting Diode ◽  
Metal Sulfide ◽  
Molybdenum Sulfide ◽  
Hole Injection ◽  
Light Emitting ◽  
Hole Injection Layer ◽  
Highly Efficient ◽  
Organic Light

In this study, we have synthesized the molybdenum sulfide quantum dots (MoS2 QDs) and zinc sulfide quantum dots (ZnS QDs) and demonstrated a highly efficient green phosphorescent organic light-emitting diode (OLED) with hybrid poly (3,4-ethylenedioxythiophene)/poly (styrenesulfonate) (PEDOT:PSS)/QDs hole injection layer (HIL). The electroluminescent properties of PEDOT:PSS and hybrid HIL based devices were explored. An optimized OLED based on the PEDOT:PSS/MoS2 QDs HIL exhibited maximum current efficiency (CE) of 72.7 cd A−1, which shows a 28.2% enhancement as compared to counterpart with single PEDOT:PSS HIL. The higher device performance of OLED with hybrid HIL can be attributed to the enhanced hole injection capacity and balanced charge carrier transportation in the OLED devices. The above analysis illustrates an alternative way to fabricate the high efficiency OLEDs with sulfide quantum dots as a HIL.

Developed one-pot synthesis of dual-color CdSe quantum dots for white light-emitting diode application

2018 ◽  
Vol 6 (12) ◽  
pp. 3089-3096 ◽  
Author(s):  
Sheng Dai ◽  
Cyuan-Bin Siao ◽  
Shu-Ru Chung ◽  
Kuan-Wen Wang ◽  
Xiaoqing Pan
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diode ◽  
Cdse Quantum Dots ◽  
Cdse Qds ◽  
One Pot ◽  
Synthetic Process ◽  
Light Emitting ◽  
One Pot Synthesis ◽  
Enhanced Stability

The size and fraction of red and green CdSe QDs can be controlled precisely during the synthetic process, thus manifesting remarkably enhanced stability.

Highly Flexible Green Light-emitting Diode Based on CsPbBr3 Perovskite Quantum Dots

2020 ◽  
Vol 41 (3) ◽  
pp. 233-240
Author(s):  
郭 洁 GUO Jie ◽  
陆 敏 LU Min ◽  
孙思琪 SUN Si-qi ◽  
胡 强 HU Qiang ◽  
张 佳 ZHANG Jia ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Emitting Diode ◽  
Green Light ◽  
Light Emitting ◽  
Perovskite Quantum Dots

Light Emitting Diode with MOS Structures Containing Multiple-Stacked Si Quantum Dots

2007 ◽  
Vol 121-123 ◽  
pp. 557-560 ◽  
Author(s):  
J. Xu ◽  
Katsunori Makihara ◽  
Hidenori Deki ◽  
Yoshihiro Kawaguchi ◽  
Hideki Murakami ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Luminescence Intensity ◽  
Room Temperature ◽  
Light Emission ◽  
Light Emitting Diode ◽  
Infrared Light ◽  
Gate Bias ◽  
Light Emitting ◽  
Mos Structures ◽  
Si Quantum Dots

Light emitting diode with MOS structures containing multiple-stacked Si quantum dots (QDs)/SiO2 was fabricated and the visible-infrared light emission was observed a room temperature when the negative gate bias exceeded the threshold voltage. The luminescence intensity was increased linearly with increasing the injected current density. The possible luminescence mechanism was briefly discussed and the delta P doping was performed to obtain the doped Si QDs and the improvement of EL intensity was demonstrated.

All-solution processed inverted green quantum dot light-emitting diodes with concurrent high efficiency and long lifetime

2019 ◽  
Vol 6 (10) ◽  
pp. 2009-2015 ◽  
Author(s):  
Zhiwen Yang ◽  
Qianqian Wu ◽  
Gongli Lin ◽  
Xiaochuan Zhou ◽  
Weijie Wu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Shell Growth ◽  
Solution Processed ◽  
Light Emitting ◽  
Long Lifetime

An all-solution processed inverted green quantum dot-based light-emitting diode with concurrent high efficiency and long lifetime is obtained by precisely controlled double shell growth of quantum dots.

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