White-light emitting surface-functionalized ZnSe quantum dots: europium complex-capped hybrid nanocrystal

2011 ◽  
Vol 21 (34) ◽  
pp. 12812 ◽  
Author(s):  
Byoung-Hwa Kwon ◽  
Ho Seong Jang ◽  
Hyoung Sun Yoo ◽  
Sung Wook Kim ◽  
Dong Seok Kang ◽  
...  
2017 ◽  
Vol 29 (37) ◽  
pp. 1702910 ◽  
Author(s):  
Zifei Wang ◽  
Fanglong Yuan ◽  
Xiaohong Li ◽  
Yunchao Li ◽  
Haizheng Zhong ◽  
...  

Nanoscale ◽  
2021 ◽  
Author(s):  
Dongdong Yan ◽  
Qionghua Mo ◽  
Shuangyi Zhao ◽  
Wensi Cai ◽  
Zhigang Zang

With a high photoluminescence quantum yield (PLQY) being able to exceed 90% for those prepared by hot injection method, CsPbBr3 quantum dots (QDs) have attracted intensive attentions for white light-emitting...


2021 ◽  
Vol 118 (15) ◽  
pp. 153102
Author(s):  
Xifang Chen ◽  
Wenhui Wu ◽  
Wenxia Zhang ◽  
Ziye Wang ◽  
Zhenjin Fu ◽  
...  

2012 ◽  
Vol 51 ◽  
pp. 09MH03
Author(s):  
Byoung Wook Kwon ◽  
Dong Ick Son ◽  
Dong-Hee Park ◽  
Heon-Jin Choi ◽  
Won-Kook Choi

2021 ◽  
Vol 10 (1) ◽  
pp. 465-477
Author(s):  
Longshi Rao ◽  
Qing Zhang ◽  
Mingfu Wen ◽  
Zhongfa Mao ◽  
Huaxian Wei ◽  
...  

Abstract White light-emitting diodes (WLEDs) hold great promise in lighting, display, and visible light communication devices, and single-component white emission carbon quantum dots (SCWE-CQDs) as the key component of WLEDs have many outstanding advantages. However, rapid and efficient synthesis of SCWE-CQDs with high photoluminescence quantum yield (PLQY) and stability remains challenging. Here, we report a novel solvent engineering strategy to obtain highly photoluminescent SCWE-CQDs by controlling the dilution ratios between N,N-dimethylformamide (DMF) and pristine red carbon quantum dots (RCQDs) solution. By optimizing synthesis conditions, the relative PLQY of the SCWE-CQDs solution reached 53%. Morphological, structural, and optical property characterizations indicate that the combined action of the hydrogen bond (HB) effect and the size effect leads to the blue shift of RCQDs, but the HB effect is more dominant than the particle size in causing large spectral shifts. In addition, the WLEDs with high color rendering index of 89 and remarkable reliability were obtained based on the highly photoluminescent SCWE-CQDs. This facile solvent engineering approach for synthesizing tunable emission CQDs will promote the progress of carbon-based luminescent materials for applications in optoelectronic devices.


2019 ◽  
Vol 669 ◽  
pp. 34-41 ◽  
Author(s):  
Zhiwei He ◽  
Congbiao Jiang ◽  
Chen Song ◽  
Juanhong Wang ◽  
Zhenji Zhong ◽  
...  

2016 ◽  
Vol 24 (26) ◽  
pp. A1560 ◽  
Author(s):  
Bin Xie ◽  
Wei Chen ◽  
Junjie Hao ◽  
Dan Wu ◽  
Xingjian Yu ◽  
...  

2015 ◽  
Vol 7 (12) ◽  
pp. 6764-6771 ◽  
Author(s):  
Sang Hyun Park ◽  
Ara Hong ◽  
Jong-Hoon Kim ◽  
Heesun Yang ◽  
Kwangyeol Lee ◽  
...  

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