Enhanced tunable dual emission of Cu:InP/ZnS quantum dots enabled by introducing Ag ions

2019 ◽  
Vol 493 ◽  
pp. 605-612 ◽  
Author(s):  
Xian Wei ◽  
Shiliang Mei ◽  
Guilin Zhang ◽  
Danlu Su ◽  
Fengxian Xie ◽  
...  
Keyword(s):  
ACS Nano ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. 539-547 ◽  
Author(s):  
Qianglu Lin ◽  
Nikolay S. Makarov ◽  
Weon-kyu Koh ◽  
Kirill A. Velizhanin ◽  
Claudiu M. Cirloganu ◽  
...  

2019 ◽  
Vol 234 (4) ◽  
pp. 269-276
Author(s):  
Huijun Li ◽  
Yaling He ◽  
Qingqing Li ◽  
Zhouqing Xu ◽  
Yan Wang ◽  
...  

Abstract A composite material based dual-emission probe for Fe3+ was prepared by the hybridization of a three-dimensional framework with CdSe/ZnS quantum dots (QDs)-doped silica nanoparticles. The obtained probe showed characteristic fluorescence emissions of CdSe/ZnS QDs (red) and Cd-metal-organic framework (MOF, blue) under a single exciation wavelength. Upon the detection of Fe3+, only the fluorescence of Cd-MOF was quenched, whereas the red fluorescence of CdSe/ZnS QDs particles was mostly reserved. Consequently, the variation of the two fluorescence intensity ratios displays a continuous color change from blue to red upon exposure to different amounts of Fe3+ ions, which can be easily observed under a UV lamp.


ACS Photonics ◽  
2019 ◽  
Vol 6 (10) ◽  
pp. 2479-2486 ◽  
Author(s):  
Jiabin Liu ◽  
Hui Zhang ◽  
Gurpreet Singh Selopal ◽  
Shuhui Sun ◽  
Haiguang Zhao ◽  
...  

Nanoscale ◽  
2019 ◽  
Vol 11 (17) ◽  
pp. 8475-8484 ◽  
Author(s):  
Weishuo Xing ◽  
Xinsu Zhang ◽  
Chong Geng ◽  
Yangyang Xie ◽  
Yuchen Deng ◽  
...  

MQW-QDs with stable dual emission versus excitation power are achieved via balancing exciton distribution in adjacent quantum wells.


Nanoscale ◽  
2019 ◽  
Vol 11 (19) ◽  
pp. 9270-9275 ◽  
Author(s):  
Yong Cui ◽  
Rongjun Liu ◽  
Fanggui Ye ◽  
Shulin Zhao

A distinctive approach is proposed to prepare biomass quantum dots (BQDs) with single-excitation and dual-emissions property. The obtained BQDs have been employed as the fluorescence probes for ratiometric fluorescence detection and imaging of coenzyme A in living cells.


2019 ◽  
Vol 43 (33) ◽  
pp. 13234-13239 ◽  
Author(s):  
Yuying Wang ◽  
Hanxiao Liu ◽  
Huanhuan Song ◽  
Mingming Yu ◽  
Liuhe Wei ◽  
...  

The dual-emission carbon dots (CDs) can detect arginine in 100% water via ratiometric fluorescent method. The CDs exhibits good photostability, selectivity, and anti-interference ability, fast response time, and wide pH detection range.


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