scholarly journals High-Uniform and High-Efficient Color Conversion Nanoporous GaN-Based Micro-LED Display with Embedded Quantum Dots

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2696
Author(s):  
Yu-Ming Huang ◽  
Jo-Hsiang Chen ◽  
Yu-Hau Liou ◽  
Konthoujam James Singh ◽  
Wei-Cheng Tsai ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Absorption ◽  
Full Color ◽  
Led Array ◽  
High Efficient ◽  
New Type ◽  
Conversion Efficiencies ◽  
Color Conversion ◽  
Scatter Light

Quantum dot (QD)-based RGB micro-LED technology is seen as one of the most promising approaches towards full color micro-LED displays. In this work, we present a novel nanoporous GaN (NP-GaN) structure that can scatter light and host QDs, as well as a new type of micro-LED array based on an NP-GaN embedded with QDs. Compared to typical QD films, this structure can significantly enhance the light absorption and stability of QDs. As a result, the green and red QDs exhibited light conversion efficiencies of 90.3% and 96.1% respectively, leading to improvements to the luminous uniformity of the green and red subpixels by 90.7% and 91.2% respectively. This study provides a viable pathway to develop high-uniform and high-efficient color conversion micro-LED displays.

Photoelectric Effect of Hybrid Ultraviolet-Sensitized Phototransistors from N-type Organic Semiconductor and All-Inorganic Perovskite Quantum Dot Photosensitizer

Nanoscale ◽  
2021 ◽  
Author(s):  
Shao-Huan Hong ◽  
Shakil N. Afraj ◽  
Ping-Yu Huang ◽  
Yi-Zi Yeh ◽  
Shih-Huang Tung ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Organic Semiconductor ◽  
Light Absorption ◽  
Photoelectric Effect ◽  
Strong Light ◽  
Solution Processed ◽  
Inorganic Perovskite ◽  
Perovskite Quantum Dots ◽  
Low Dimensional

Low-dimensional all-inorganic perovskite quantum dots (QDs) have been increasingly developed as photo-sensing materials in the field of photodetectors because of their strong light-absorption capability and broad bandgap tunability. Here, solution-processed...

58‐3: Distinguished Paper: High‐Efficient Quantum‐Dot Light‐Emitting Diodes with Blue Cadmium‐free Quantum Dots

2020 ◽  
Vol 51 (1) ◽  
pp. 866-869
Author(s):  
Tatsuya Ryowa ◽  
Takeshi Ishida ◽  
Yusuke Sakakibara ◽  
Keisuke Kitano ◽  
Masaya Ueda ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
High Efficient

Full‐Color Micro‐LED Display with CsPbBr 3 Perovskite and CdSe Quantum Dots as Color Conversion Layers

2020 ◽  
Vol 5 (8) ◽  
pp. 2000251 ◽  
Author(s):  
Yongming Yin ◽  
Zhiping Hu ◽  
Muhammad Umair Ali ◽  
Miao Duan ◽  
Lu Gao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cdse Quantum Dots ◽  
Full Color ◽  
Color Conversion

Inkjet printed uniform quantum dots as color conversion layers for full-color OLED displays

Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 2103-2110 ◽  
Author(s):  
Zhiping Hu ◽  
Yongming Yin ◽  
Muhammad Umair Ali ◽  
Wenxiang Peng ◽  
Shijie Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Pump Light ◽  
Color Display ◽  
Full Color ◽  
Color Conversion ◽  
Color Filters ◽  
Uniform Quantum

We proposed a new full-color display framework QD-OLEDs, where blue OLEDs are used as pump light, and red and green QDs are printed on color filters as color conversion layers.

scholarly journals Coefficient of Interband Light Absorption by InAs/GaхIn1-хAs Quantum Dot Superlattice at Low Temperatures

2017 ◽  
Vol 18 (2) ◽  
pp. 151-157
Author(s):  
V.I. Boichuk ◽  
I.V. Bilynsky ◽  
R.I. Pazyuk
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Absorption Coefficient ◽  
Light Absorption ◽  
Low Temperatures ◽  
Dispersion Relations ◽  
Interband Absorption ◽  
Absorption Bands ◽  
Interband Light Absorption

In the paper the InAs/GaxIn1-xAs superlattice system of small size cubic QDs (10 nm) has been considered. Dispersion relations for electron and hole subbands have been calculated for superlattices of different dimensionality. The dependences of the interband absorption coefficient on light frequency, quantum dot size and interdot distance have been researched.It is shown, that the dimension of the superlattice has influence on the shape of the absorption bands and the increasingof the distance between quantum dots is followed by narrowing of the absorption peaks for all three superlatticetypes.

scholarly journals Effect of co-sensitization of InSb quantum dots on enhancing the photoconversion efficiency of CdS based quantum dot sensitized solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (25) ◽  
pp. 14837-14845 ◽  
Author(s):  
T. Archana ◽  
K. Vijayakumar ◽  
G. Subashini ◽  
A. Nirmala Grace ◽  
M. Arivanandhan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Light Absorption ◽  
Photoconversion Efficiency ◽  
Sensitized Solar Cells

InSb co-sensitized QDSSCs showed relatively higher efficiency (4.94%) than CdS based QDSSCs (3.52%) due to improved light absorption with low recombination losses.

Aqueous synthesis of Mn-doped CuInSe2 quantum dots to enhance the performance of quantum dot sensitized solar cells

2019 ◽  
Vol 48 (42) ◽  
pp. 16115-16122
Author(s):  
Mulu Alemayehu Abate ◽  
Khalilalrahman Dehvari ◽  
Jia-Yaw Chang ◽  
Keiko Waki
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Power Conversion Efficiency ◽  
Light Absorption ◽  
Charge Separation ◽  
Power Conversion ◽  
Aqueous Synthesis ◽  
Sensitized Solar Cells ◽  
Mn Doped

Mn-Doped QDs extended light absorption by altering the bandgap and facilitated rapid electron injection and charge separation, which together result in enhanced overall power conversion efficiency (PCE).

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