Efficient, high-CRI white LEDs by combining traditional phosphors with cadmium-free InP/ZnSe red quantum dots

2021 ◽  
Author(s):  
Youri Meuret ◽  
Hannes Van Avermaet ◽  
Leila Mingabudinova ◽  
Bega Karadza ◽  
Zeger Hens
Keyword(s):  
Quantum Dots ◽  
White Leds

Dependence of operating conditions on lifetime of Phosphor Quantum dots-based white LEDs

2019 ◽  
Author(s):  
Preetpal Singh ◽  
Cher Ming Tan ◽  
Hao-Chung Kuo ◽  
Kai Wang ◽  
Hongchen Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Operating Conditions ◽  
White Leds

Successive and large-scale synthesis of InP/ZnS quantum dots in a hybrid reactor and their application to white LEDs

2012 ◽  
Vol 23 (6) ◽  
pp. 065602 ◽  
Author(s):  
Kyungnam Kim ◽  
Sohee Jeong ◽  
Ju Yeon Woo ◽  
Chang-Soo Han
Keyword(s):  
Quantum Dots ◽  
Large Scale ◽  
Hybrid Reactor ◽  
White Leds ◽  
Large Scale Synthesis

Nanocrystalline Phosphors for Lighting and Detection Applications

2010 ◽  
Vol 654-656 ◽  
pp. 1130-1133 ◽  
Author(s):  
Christopher J. Summers ◽  
Hisham M. Menkara ◽  
Richard A. Gilstrap ◽  
Mazen Menkara ◽  
Thomas Morris
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Shell Growth ◽  
Stokes Shift ◽  
Thermal Quenching ◽  
High Sensitivity ◽  
In Situ Monitoring ◽  
White Leds ◽  
Sensing Applications ◽  
Improved Stability

We report the development of new nanoparticle phosphors and quantum dot structures designed for applications to enhance the color rendering and efficiency of high brightness white LEDs, as well as for bio-sensing applications. The intrinsic problem of self-absorption, high toxicity, and high sensitivity to thermal quenching of conventional quantum dot systems has prevented their adoption to LED devices. Doped Cd-free quantum dots may circumvent these issues due to their distinct Stokes shift and improved stability at high temperature. We report on the modification of Mn-doped ZnSe/ZnS core-shell quantum dots for application to the (blue diode + yellow emitter) white LED system. Band gap tuning for 460 nm excitation, inorganic shell growth and in-situ monitoring for enhanced efficiency, and analysis of thermal stability will are reported.

White LEDs with CIS-ZnS quantum dots

2016 ◽  
Author(s):  
Wu-Chi Chen ◽  
Chang-An Chen ◽  
Nan-Ming Lin ◽  
Jia-Huei Lyu ◽  
Yi-Zhen Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Leds

Magic sol–gel silica films encapsulating hydrophobic and hydrophilic quantum dots for white-light-emission

RSC Advances ◽  
2014 ◽  
Vol 4 (39) ◽  
pp. 20358-20363 ◽  
Author(s):  
Ping Yang ◽  
Hsueh-Shin Chen ◽  
Junpeng Wang ◽  
Quande Che ◽  
Qian Ma ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emission ◽  
Sol Gel ◽  
Silica Film ◽  
White Light Emission ◽  
Silica Films ◽  
White Leds ◽  
3 Dimensional ◽  
Dimensional Surface

A sol–gel silica film was fabricated by a spraying approach on various substrates with a 3-dimensional surface for white LEDs.

Organic and quantum-dot hybrid white LEDs using a narrow bandwidth blue TADF emitter

2020 ◽  
Vol 8 (31) ◽  
pp. 10831-10836
Author(s):  
Yang Tang ◽  
Guohua Xie ◽  
Xiao Liang ◽  
You-Xuan Zheng ◽  
Chuluo Yang
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
White Leds ◽  
Narrow Bandwidth

By mixing a blue organoboron emitter, and green/red quantum dots, hybrid white LEDs with the primary RGB sharp peaks respectively at 464, 538 and 622 nm were demonstrated, accompanied with three individual bandwidths of 30, 34 and 31 nm.

Single-phased emission-tunable Mg and Ce co-doped ZnO quantum dots for white LEDs

2020 ◽  
Vol 231 ◽  
pp. 118096 ◽  
Author(s):  
Qiang Shi ◽  
Kai Ling ◽  
Susu Duan ◽  
Xue Wang ◽  
Shengxiang Xu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Leds ◽  
Doped Zno ◽  
Zno Quantum Dots ◽  
Co Doped
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