Janus Magneto–Electric Nanosphere Dimers Exhibiting Unidirectional Visible Light Scattering and Strong Electromagnetic Field Enhancement

ACS Nano ◽  
2015 ◽  
Vol 9 (1) ◽  
pp. 436-448 ◽  
Author(s):  
Hao Wang ◽  
Pu Liu ◽  
Yanlin Ke ◽  
Yunkun Su ◽  
Lei Zhang ◽  
...  
2017 ◽  
Vol 70 (8) ◽  
pp. 917
Author(s):  
Hailiang Huang ◽  
Guobin Yi ◽  
Xihong Zu ◽  
Benbin Zhong ◽  
Wenjing Lin ◽  
...  

In this paper, triblock copolymer polyisoprene-block-polystyrene-block-poly(2-vinylpyridine) (PI-b-PS-b-P2VP) micelles containing HAuCl4 were spin-coated on silicon wafers followed by calcination to form gold nanoparticle arrays. Subsequently the surface optical performances of poly(3-hexylthiophene) (P3HT)-coated Au nanoparticle arrays were investigated. The particle size and the interparticle distance of the gold nanoparticle arrays could be controlled by adjusting the molar ratio of HAuCl4 precursor to vinyl pyridine units in PI-b-PS-b-P2VP and the spin speed during spin-coating. The results demonstrated that Au nanoparticle arrays with large nanoparticle size were able to produce strong electromagnetic field enhancement. Furthermore, the ratio of average particle size to average interparticle distance increased with decreasing spin speed, resulting in strong electromagnetic field enhancement for metal-enhanced fluorescence (MEF) and surface-enhanced Raman scattering (SERS).


2007 ◽  
Author(s):  
H. V. Grushevskaya ◽  
V. V. Hrushevsky ◽  
T. I. Orekhovskaya ◽  
M. A. Senuk ◽  
T. A. Burenkova

Author(s):  
Pengfei Cheng ◽  
Ronald Kampmann ◽  
Dong Wang ◽  
Stefan Sinzinger ◽  
Peter Schaaf

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