Peculiarities of photoluminescence of porous silicon with luminescent liquid crystal fillers

Optik ◽  
2014 ◽  
Vol 125 (19) ◽  
pp. 5738-5740 ◽  
Author(s):  
T.D. Ibragimov ◽  
G.M. Bayramov ◽  
N.G. Darvishov
Keyword(s):  
Liquid Crystal ◽  
Porous Silicon

Enhancement of fluorescence of porous silicon upon saturation by liquid crystal

2010 ◽  
Vol 108 (1) ◽  
pp. 70-79 ◽  
Author(s):  
Yu. P. Piryatinski ◽  
L. A. Dolgov ◽  
O. V. Yaroshchuk ◽  
T. A. Gavrilko ◽  
S. K. Lazarouk
Keyword(s):  
Liquid Crystal ◽  
Porous Silicon

Tunable photoluminescence of porous silicon by liquid crystal infiltration

2011 ◽  
Vol 131 (10) ◽  
pp. 2053-2057 ◽  
Author(s):  
Qing-lan Ma ◽  
Rui Xiong ◽  
Yuan Ming Huang
Keyword(s):  
Liquid Crystal ◽  
Porous Silicon

Photoluminescence of Liquid Crystal Infiltrated Porous Silicon Film

2010 ◽  
Vol 663-665 ◽  
pp. 812-815 ◽  
Author(s):  
Yuan Ming Huang ◽  
Qing Lan Ma ◽  
Bao Gai Zhai
Keyword(s):  
Liquid Crystal ◽  
Porous Silicon ◽  
Nematic Liquid Crystal ◽  
Silicon Film ◽  
Luminescent Properties ◽  
Silicon Films ◽  
The Other ◽  
Deep Blue ◽  
Pl Spectrum ◽  
The Cost

We have investigated the photoluminescence (PL) of a porous silicon film in which a typical nematic liquid crystal 4-pentyl-4’-cyanobiphenyl infiltrated. Before the liquid crystal filtration, the PL spectrum of the porous silicon film is comprised of two luminescent bands, one of which is located at about 600 nm whereas the other of which is located at about 450 nm. After the liquid crystal filtration, the porous silicon film gives off intense deep-blue PL with its peak located at about 400 nm at the cost of the complete quenching of the PL from the original porous silicon film. Our results have demonstrated that the luminescent properties of porous silicon films can be dramatically modified by liquid crystal infiltration.

Tunable optical filter based on nanocomposite (liquid crystal)/(porous silicon)

2012 ◽  
Author(s):  
Georgiy V. Tkachenko ◽  
Igor A. Sukhoivanov ◽  
Oleksiy V. Shulika ◽  
Volodymyr Tkachenko
Keyword(s):  
Liquid Crystal ◽  
Porous Silicon ◽  
Optical Filter ◽  
Tunable Optical Filter

Polarizing Optical Microscopic Characterization of Nematic Liquid Crystal Confined in Porous Silicon

2011 ◽  
Vol 181-182 ◽  
pp. 83-87
Author(s):  
Yuan Ming Huang ◽  
Qing Lan Ma ◽  
Bao Gai Zhai
Keyword(s):  
Experimental Study ◽  
Liquid Crystal ◽  
Porous Silicon ◽  
Optical Microscopy ◽  
Nematic Liquid Crystal ◽  
Experimental Investigations ◽  
Electro Optic ◽  
The Given

With polarizing optical microscopy we have investigated the electro-optic properties of a nematic liquid crystal 4-n-pentyl-4′-cyanobipheny confined in the microchannels of porous silicon. Experimental study shows clearly that the liquid crystal molecules tend to align parallel to the direction of the pore columns in porous silicon. Schlieren textures with S = +1 and +2 disclinations were recorded. Our experimental investigations show that uniaxial alignment, the planar radial and the escaped radial configurations exist around the given microchannels of porous silicon.

Ellipsometric Study of Liquid Crystal Infiltrated Porous Silicon

2007 ◽  
Vol 465 (1) ◽  
pp. 359-370 ◽  
Author(s):  
A. Marino ◽  
G. Abbate ◽  
V. Tkachenko ◽  
I. Rea ◽  
L. De Stefano ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Porous Silicon ◽  
Ellipsometric Study

scholarly journals Evidence of anisotropic quenched disorder effects on a smectic liquid crystal confined in porous silicon

2006 ◽  
Vol 73 (1) ◽  
Author(s):  
Régis Guégan ◽  
Denis Morineau ◽  
Claude Loverdo ◽  
Wilfried Béziel ◽  
Mohammed Guendouz
Keyword(s):  
Liquid Crystal ◽  
Porous Silicon ◽  
Quenched Disorder ◽  
Disorder Effects ◽  
Smectic Liquid Crystal

Fluorescence of Porous Silicon Filled with Liquid Crystal 5CB

2007 ◽  
Vol 467 (1) ◽  
pp. 195-202 ◽  
Author(s):  
Yu. P. Piryatinski ◽  
L. O. Dolgov ◽  
O. V. Yaroshchuk ◽  
S. Lazarouk
Keyword(s):  
Liquid Crystal ◽  
Porous Silicon ◽  
Liquid Crystal 5Cb
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