Synthesis of Highly Charged, Monodisperse Polystyrene Colloidal Particles for the Fabrication of Photonic Crystals

2000 ◽  
Vol 232 (1) ◽  
pp. 76-80 ◽  
Author(s):  
Chad E. Reese ◽  
Carol D. Guerrero ◽  
Jesse M. Weissman ◽  
Kangtaek Lee ◽  
Sanford A. Asher
Keyword(s):  
Photonic Crystals ◽  
Colloidal Particles ◽  
Monodisperse Polystyrene

Preparation and Properties of Silica Inverse Opal via Self-Assembly

2014 ◽  
Vol 699 ◽  
pp. 318-324 ◽  
Author(s):  
Syara Kassim ◽  
S. Padmanabhan ◽  
J. McGrath ◽  
M.E. Pemble
Keyword(s):  
Photonic Crystals ◽  
Self Assembly ◽  
Colloidal Particles ◽  
Photonic Band Gap ◽  
Three Dimensional ◽  
Colloidal Synthesis ◽  
3 Dimensional ◽  
Inverse Opals ◽  
Simple Processing ◽  
Potential Applications

The bottom-up colloidal synthesis of photonic band gap (PBG) materials or photonic crystals (PC) has attracted considerable interest as compared to so-called top-down lithographic approaches due to the simple processing steps involved and the prospect of the economically viable production of complex 3-dimensional optical materials from simple colloidal particles. To date self-assembly techniques constitute the most popular approach to fabricate 3D photonic crystals from colloidal particle suspensions. Based on the natural tendency of monodisperse colloidal particles to organise into ordered arrays, this method represent the best option due to the ease of fabrication, ability to produce larger area samples and cost. Here we report on the fabrication of long range three-dimensional (3D) ordered poly (methyl methacrylate) (PMMA)-silica PC structures and the subsequent fabrication of robust silica inverse opals using self-assembly methods. The optical properties of these materials are described and discussed in terms of potential applications of these materials.

scholarly journals Chemically/Magnetically Dual-Responsive Nanoparticles for Multipurpose Colorimetric Sensor

2020 ◽  
Vol 213 ◽  
pp. 02025
Author(s):  
Wei Liu ◽  
Xuefeng Liu ◽  
Jiabao Ren ◽  
Chen Cui ◽  
Shujie Xu
Keyword(s):  
Photonic Crystals ◽  
Colloidal Particles ◽  
Colorimetric Sensor ◽  
Proof Of Concept ◽  
Stimuli Responsive ◽  
Functional Protein ◽  
Qualitative And Quantitative ◽  
Dual Responsive ◽  
Colloidal Photonic Crystals ◽  
Recognition Ability

Magnetically responsive colloidal photonic crystals can change their structural color according to the external magnetic field, which has been widely studied in recent years. However, due to lack of recognition ability towards non-magnetic analytes, these photonic crystals can be applied to constructing a sensor only when an additional stimuli responsive unit is involved. To address this problem, we used a functional protein to modify the magnetically responsive colloidal particles to construct chemically/magnetically dualresponsive nanoparticles. For a proof of concept research in this manuscript, we modified the colloidal particles with streptavidin, and the as obtained nanoparticles were used to detect biotinylated protein via a binding and assembling strategy, which is impossible for conventional photonic crystal sensors. Not only qualitative and quantitative detections were achieved, but also the average diameters of the biotinylated protein were correctly estimated. These results have demonstrated a multipurpose detection feature of our proposed colorimetric sensor.

A facile two-step approach to synthesize monodisperse and high-magnetization Fe3O4@PS composite colloidal particles for constructing dual-response photonic crystals

2020 ◽  
Vol 19 ◽  
pp. 114-120 ◽  
Author(s):  
Yanlin Li ◽  
Wenyuan Duan ◽  
Ai Fujisaka ◽  
Toshihiro Moriga ◽  
Xuegang Lu ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Colloidal Particles ◽  
Dual Response

Novel Approach for Fabricating Highly Ordered Colloidal Crystals using Fluorinated Solvent

2007 ◽  
Vol 1014 ◽  
Author(s):  
Satoshi Takeda ◽  
Pierre Wiltzius
Keyword(s):  
Photonic Crystals ◽  
Colloidal Particles ◽  
Colloidal Crystals ◽  
Optical Devices ◽  
Glass Slide ◽  
Polystyrene Microspheres ◽  
Novel Technique ◽  
Colloidal Photonic Crystals ◽  
Novel Approach ◽  
Self Assembled

AbstractA novel technique for fabricating highly ordered colloidal photonic crystals has been developed. In this method, a droplet of water containing polystyrene microspheres was added to the surface of a fluorinated solvent bath. Consequently, the two liquids remained separated and the colloidal particles self-assembled into close-packed structures at the interface between them. By transferring the droplet onto a glass slide, a highly ordered crystal was obtained. This technique offers a new, potentially easier, and more effective approach than currently used. We believe that it will open new ways for fabricating materials based on colloidal crystals as well as applying the colloidal photonic crystals to optical devices.

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.

Synthesis and Utilization of Monodisperse Superparamagnetic Colloidal Particles for Magnetically Controllable Photonic Crystals

2002 ◽  
Vol 14 (3) ◽  
pp. 1249-1256 ◽  
Author(s):  
Xiangling Xu ◽  
Gary Friedman ◽  
Keith D. Humfeld ◽  
Sara A. Majetich ◽  
Sanford A. Asher
Keyword(s):  
Photonic Crystals ◽  
Colloidal Particles

Facile Preparation and Self-Assembly of Monodisperse Polystyrene Nanospheres for Photonic Crystals

2015 ◽  
Vol 15 (4) ◽  
pp. 3239-3243 ◽  
Author(s):  
Cheng Chen ◽  
Zhi-Gang Zhu ◽  
Wei-Heng Shih ◽  
Qiao-Qiao Ge ◽  
Ming-Ju Liu ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Self Assembly ◽  
Polystyrene Nanospheres ◽  
Monodisperse Polystyrene ◽  
Facile Preparation

Study on Preparation and Characterization of the SiO2 Photonic Crystal

2018 ◽  
Vol 773 ◽  
pp. 123-127
Author(s):  
Yun Gao Cai ◽  
Xin Qi Li
Keyword(s):  
Photonic Crystals ◽  
Colloidal Particles ◽  
Water Solution ◽  
Mixed Solvents ◽  
Mixed Solution ◽  
X Ray Diffraction ◽  
Scanning Electron Microcopy ◽  
Hexagonal Arrangement ◽  
The Stöber Method

SiO2colloidal particles at the size range of 270-910 nm were synthesized by hydrolysis of ethyl silicate (TEOS) in the mixed solvents of TEOS and water under the catalysis of ammonium water solution; the effect of the addition manner of the mixed solution of TEOS and ethanol through immediateness and drop by drop were discussed; besides, two dimentional (2-D) SiO2photonic crystals (PCs) with hexagonal arrangement structure were successfully prepared by the gravity sedimentation method. The X-ray diffraction (XRD) and scanning electron microcopy (SEM) were employed to analyze the crystallinity and morphology of the synthesized SiO2colloidal particles and the 2-D SiO2photonic crystals, the results show that during the progress of the synthesized SiO2colloidal particles by the Stöber method, the addition manner of the mixed solution of TEOS and ethanol through drop by drop instead of immediateness could avoid the double-sized SiO2colloidal particles in a certain extent effectively. The reasons for the experimental results in this investigation have been discussed.

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