fluorescent spectra
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2019 ◽  
Vol 17 (9) ◽  
pp. 716-719
Author(s):  
Yueting Qin ◽  
Liyu Hao ◽  
Tie Yang ◽  
Chengguo Ming

To research and develop fluorescence temperature sensor, Er3+-doped NaY(WO4)2 crystal had been prepared. Under 808 nm excitation, the sample's fluorescent spectra were measured. Strong green up-conversion emissions at 525 nm and 550 nm were observed. Their intensity ratio is variable with the increase of the sample's temperature. The maximal sensitivity of Er3+ doped NaY(WO4)2 crystal was about 0.0058/K. Our researches are helpful for exploiting temperature sen- sor based on fluorescence intensity ratio.



2019 ◽  
Vol 94 ◽  
pp. 138-147 ◽  
Author(s):  
Jamilur R. Ansari ◽  
Neelam Singh ◽  
Razi Ahmad ◽  
Dipankar Chattopadhyay ◽  
Anindya Datta


2019 ◽  
Vol 91 (4) ◽  
pp. 633-651
Author(s):  
Alexei D. Averin ◽  
Irina P. Beletskaya

Abstract A mini-review is dedicated to the application of Pd(0)-catalyzed amination reactions for the synthesis of polymacrocyclic compounds of various architectures. Such molecules comprise diazacrown ether moieties or structural fragments of tri- and tetraazamacrocycles, polyamine or polyoxadiamine chains of different length and aromatic spacers. Polymacrocyclic compounds thus formed possess an increased number of coordination sites and are suitable for testing as potential receptors of metal cations. Some of these macrocyclic compounds were decorated with the exocyclic dansyl fluorophore group or were coupled with porphyrin units to form polymacrocyclic conjugates. Fluorescent spectra of these compounds were studied in the presence of various metal perchlorates and several macrocycles were found to act as chemosensors or molecular probes for such cations like Cu(II), Al(III), Cr(III).



Author(s):  
Di Yin ◽  
Fengzhi Dai ◽  
Yuxuan Zhu ◽  
Yasheng Yuan ◽  
Tingting Zhang ◽  
...  


2017 ◽  
Vol 252 ◽  
pp. 1112-1117 ◽  
Author(s):  
Jiawei Li ◽  
Caixia Yin ◽  
Tao Liu ◽  
Ying Wen ◽  
Fangjun Huo


Author(s):  
Jiawei Li ◽  
Tao Liu ◽  
Fangjun Huo ◽  
Jianbin Chao ◽  
Yongbin Zhang ◽  
...  
Keyword(s):  




2016 ◽  
Vol 122 (11) ◽  
Author(s):  
Licai Hao ◽  
Zhongchen Bai ◽  
Zhaoliang Huang ◽  
Sha Liao ◽  
Zhengping Zhang


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