Fabrication and Immobilization of 2D Colloidal Photonic Crystals

2007 ◽  
Author(s):  
Ramazan Asmatulu ◽  
Sejong Kim ◽  
Robin Bright ◽  
Fotis Papadimitrakopoulos ◽  
Harris Marcus
Keyword(s):  
Photonic Crystals ◽  
Experimental Tests ◽  
Polyacrylamide Solution ◽  
Colloidal Photonic Crystals ◽  
Assembly Technique

A dielectrophoretic, DEP, force induced assembly technique was used to achieve close-packed 2D colloidal photonic crystals on a substrate. The experimental tests were conducted on 5.3 μm carboxyl fictionalized polystyrene (PS) particles at a 6 AC Voltage and 1 MHz frequency. After the crystal was completely formed at the center of electrodes, a polyacrylamide solution was added to the system to immobilize the photonic crystals.

Dielectrophoretic Force-Induced Assembly Technique for the Fabrication of 2D Colloidal Photonic Crystals

2008 ◽  
Author(s):  
R. Asmatulu ◽  
S. Kim ◽  
F. Papadimitrakopoulos ◽  
H. Marcus
Keyword(s):  
Photonic Crystals ◽  
Parallel Plate ◽  
Colloidal Particles ◽  
Experimental Tests ◽  
Gold Electrodes ◽  
Parallel Plates ◽  
Dielectrophoretic Force ◽  
Colloidal Photonic Crystals ◽  
Assembly Technique ◽  
Electro Osmotic Flow

Dielectrophoretic force-induced assembly technique was used to achieve close-packed 2D colloidal photonic crystals on parallel plate gold electrodes. These gold electrodes were patterned using conventional UV photolithography technique. The width and length of the parallel plates were 280 μm and 3 mm, respectively. The experimental tests conducted with 5.3 μm carboxyl functionalized polystyrene (PS) particles at various AC voltages, frequencies and particle concentrations showed that colloidal photonic crystals were fabricated on the ground electrode, instead of the working electrode, which may be attributed to the electro-osmotic flow and dipole-dipole attractions between the colloidal particles. It is concluded that this study provides promising results for the 2D colloidal photonic fabrication for the photonic industry.

Parallel-Plate Conductive Electrodes for the Fabrication of Larger 2D Colloidal Photonic Crystals

2009 ◽  
Vol 131 (5) ◽  
Author(s):  
R. Asmatulu ◽  
S. Kim ◽  
F. Papadimitrakopoulos ◽  
H. Marcus
Keyword(s):  
Photonic Crystals ◽  
Parallel Plate ◽  
Colloidal Particles ◽  
Experimental Tests ◽  
Colloidal System ◽  
Dielectrophoretic Force ◽  
Colloidal Photonic Crystals ◽  
Assembly Technique ◽  
Electro Osmotic Flow ◽  
Lithography Technique

A new dielectrophoretic force-induced parallel-plate assembly technique was used to achieve close-packed 2D large colloidal photonic crystals on gold electrodes (∼200 nm thick). The electrodes were patterned on a glass substrate using a conventional UV lithography technique. The experimental tests conducted with 5.3 μm carboxyl functionalized polystyrene particles at various ac and dc voltages, frequencies, and particle concentrations showed that larger size (0.25×3 mm2) colloidal photonic crystals were fabricated on the ground electrode rather than on the working electrode. To date, this is the largest colloidal photonic crystal fabricated using this method. The reason behind this phenomenon can be attributed to the electro-osmotic flow in the colloidal system and dipole-dipole attractions between the colloidal particles.

Fabrication of Colloidal Photonic Crystals with Heterostructure by Spin-Coating Method

2009 ◽  
Vol 26 (2) ◽  
pp. 024210 ◽  
Author(s):  
Wang Ai-Jun ◽  
Chen Sheng-Li ◽  
Dong Peng ◽  
Cai Xiao-Gang ◽  
Zhou Qian ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Spin Coating ◽  
Spin Coating Method ◽  
Colloidal Photonic Crystals ◽  
Coating Method

Controlled gradient colloidal photonic crystals and their optical properties

2013 ◽  
Vol 428 ◽  
pp. 9-17 ◽  
Author(s):  
He Huang ◽  
Junbo Chen ◽  
Ye Yu ◽  
Zengmin Shi ◽  
Helmuth Möhwald ◽  
...  
Keyword(s):  
Optical Properties ◽  
Photonic Crystals ◽  
Colloidal Photonic Crystals

Innentitelbild: Highly Tunable Superparamagnetic Colloidal Photonic Crystals (Angew. Chem. 39/2007)

2007 ◽  
Vol 119 (39) ◽  
pp. 7476-7476
Author(s):  
Jianping Ge ◽  
Yongxing Hu ◽  
Yadong Yin
Keyword(s):  
Photonic Crystals ◽  
Colloidal Photonic Crystals

Optofluidic Assembly of Colloidal Photonic Crystals with Controlled Sizes, Shapes, and Structures

2008 ◽  
Vol 20 (9) ◽  
pp. 1649-1655 ◽  
Author(s):  
Shin-Hyun Kim ◽  
Seog-Jin Jeon ◽  
Gi-Ra Yi ◽  
Chul-Joon Heo ◽  
Jae Hoon Choi ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Colloidal Photonic Crystals

Polarisation anisotropy in colloidal photonic crystals

2009 ◽  
Author(s):  
S.G. Romanov ◽  
M. Bardosova ◽  
S. Essig ◽  
K. Busch ◽  
U. Peschel
Keyword(s):  
Photonic Crystals ◽  
Colloidal Photonic Crystals

Colloidal photonic crystals with a graded lattice-constant distribution

2007 ◽  
Vol 285 (9) ◽  
pp. 1037-1041 ◽  
Author(s):  
Jian Li ◽  
Longjian Xue ◽  
Zhe Wang ◽  
Yanchun Han
Keyword(s):  
Photonic Crystals ◽  
Lattice Constant ◽  
Colloidal Photonic Crystals ◽  
Graded Lattice ◽  
Constant Distribution

Fabrication of high-quality colloidal photonic crystals with sharp band edges for ultrafast all-optical switching

2008 ◽  
Vol 17 (12) ◽  
pp. 4533-4540 ◽  
Author(s):  
Feng Tian-Hua ◽  
Dai Qiao-Feng ◽  
Wu Li-Jun ◽  
Guo Qi ◽  
Hu Wei ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Optical Switching ◽  
High Quality ◽  
Colloidal Photonic Crystals ◽  
All Optical ◽  
Sharp Band ◽  
All Optical Switching

scholarly journals Photonic Crystals: Ordered 2D Colloidal Photonic Crystals on Gold Substrates by Surfactant-Assisted Fast-Rate Dip Coating (Small 10/2014)

Small ◽  
2014 ◽  
Vol 10 (10) ◽  
pp. 1894-1894
Author(s):  
Eileen Armstrong ◽  
Worawut Khunsin ◽  
Michal Osiak ◽  
Martin Blömker ◽  
Clivia M. Sotomayor Torres ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Fast Rate ◽  
Dip Coating ◽  
Colloidal Photonic Crystals ◽  
Gold Substrates ◽  
Surfactant Assisted
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