scholarly journals Lead-free bright blue light-emitting cesium halide nanocrystals by zinc doping

RSC Advances ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 2437-2445
Author(s):  
Heng Xu ◽  
Jianghu Liang ◽  
Zhanfei Zhang ◽  
Zihao Deng ◽  
Yuankun Qiu ◽  
...  
Keyword(s):  
Blue Light ◽  
Lead Free ◽  
Light Emitting ◽  
Injection Method ◽  
Zinc Doping ◽  
Hot Injection ◽  
Bright Blue

Lead-free blue light-emitting CsBr:Zn and CsI:Zn NCs with a high PLQY of nearly 79% were synthesized via a hot injection method.

Bright Blue Light‐Emitting Doped Cesium Bromide Nanocrystals: Alternatives of Lead‐Free Perovskite Nanocrystals for White LEDs

2019 ◽  
Vol 7 (10) ◽  
pp. 1900108 ◽  
Author(s):  
Zhiwen Yang ◽  
Zhao Jiang ◽  
Xinyi Liu ◽  
Xiaochuan Zhou ◽  
Jianhua Zhang ◽  
...  
Keyword(s):  
Blue Light ◽  
Lead Free ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
White Leds ◽  
Cesium Bromide ◽  
Bright Blue

scholarly journals Highly Stable and Bright Blue Light-Emitting Diodes Based on Carbon Dots with Chemically Inert Surface

2021 ◽  
Author(s):  
Tianyang Zhang ◽  
Xiao Wang ◽  
Zhenyu Wu ◽  
Tianyu Yang ◽  
Han Zhao ◽  
...  
Keyword(s):  
Band Gap ◽  
Blue Light ◽  
Organic Semiconductors ◽  
Carbon Dots ◽  
Light Emitting Diode ◽  
Wide Band ◽  
Wide Band Gap ◽  
Light Emitting ◽  
Inert Surface ◽  
Bright Blue

Blue light-emitting diode (LED) has always been a tough problem for the display and illumination. Inorganic/organic semiconductors and carbon dots (CDs) with wide band gap still undergo the obstacles of...

Synthesis and Luminescent Properties of Blue-Emitting Hydrotalcite-Like Compound for NUV Light-Emitting Diodes

2014 ◽  
Vol 1004-1005 ◽  
pp. 340-343
Author(s):  
Chen Hong ◽  
Hui Gao ◽  
Zhao Xuan ◽  
Li Hong Jiang ◽  
Qi Dan Ling
Keyword(s):  
Fluorescence Spectrum ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
Luminescent Properties ◽  
Coprecipitation Method ◽  
White Led ◽  
Hybrid Nanocomposite ◽  
Inorganic Hybrid ◽  
Light Emitting ◽  
Bright Blue

Layered organic-inorganic hybrid nanocomposite material with the hydrotalcite-like structure, containing Mg (II),Zn (II) and Al (III) in the layers, and salicylate ions in the interlayer, have been prepared by a simple coprecipitation method (MgAlZn-sal-HTlc). Fluorescence spectrum, XRD and TG were used to characterize the properties of the sample. Additionally, A LED device was fabricated by coating MgAlZn-sal-HTlc onto InGaN-based LED chip. The device emits bright blue light. All the results indicate that blue-emitting fluorescent hydrotalcite-like compound can act as blue components in the fabrication of white LED.

Suppressed efficiency roll-off in blue light-emitting diodes by balancing the spatial charge distribution

2020 ◽  
Vol 8 (37) ◽  
pp. 12927-12934
Author(s):  
Fangfang Wang ◽  
Huimin Zhang ◽  
Qingli Lin ◽  
Jiaojiao Song ◽  
Huaibin Shen ◽  
...  
Keyword(s):  
Charge Distribution ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Spatial Charge ◽  
Bright Blue ◽  
Peak Value

Suppressed efficiency roll-off and bright blue QLEDs have been demonstrated by using propanethiol-modified ZnCdSeS QDs as the emitting layers. Their EQE can be sustained at >75% of the peak value in the range of 100–10 000 cd m−2.

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