Ordered array structure

Keywords Hetero nano-interface Localized surface plasmon Ordered array structure Organic core/shell type hybridized nanocrystals Reprecipitation method... 

Ordered Array Structure of Polymer Microspheres on Patterned Substrate, and Arrangement... 

Ordered Array Structure of Polymer Colloidal Particles on a Patterned Substrate. 174... 

In the present chapter, the fabrication techniques of core/shell type hybridized NCs and their structure and properties are first described. Next, the ordered array structure of polymer MSs and spherically encapsulated PDA NCs on a patterned substrate will be introduced. Finally, the future scope will be discussed in the relevant fields. 

PSMS was used as a PCP in the present case [59]. Ordered array structure could be designed by optimizing the parameters of L and P, the diameter of PSMS (D), and pattern symmetry. 

Figure 28a exhibits the SEM image of ordered array structure where each PSMS was trapped within the individual dimple on the hexagonal patterned substrate (L = 2.1pm and P = 4.0pm) in a large-scale area [59]. Namely, all the dimples were perfectly filled with PSMS (D = 2.0pm). SinceL = 2.1 pm, the trapped PSMS partly protruded from the substrate terrace as shown in Fig. 28b, and the height of the protrusion was calculated to be about 1.2 pm from the schematic cross-section view illusttated in Fig. 28c. In addition. Fig. 28d displays the ordered array structure of PSMSs D = 2.0pm) on the tetragonally patterned substrate L = 1.0pm and P = 2.0pm).

The same procedure was further repeated, and PSMSs were subsequently deposited on the PSMS-fllled hexagonally patterned substrate, which means the first layer of ordered array structure of PSMSs ean be employed as a new template [59], because PSMSs protruded by 60% from the substrate surface as shown in Fig. 28e. 

Figure 29a illustrates sehematically the cross section view, when D = 2.0pm, L = 2.0pm, and P = 4.0pm in the hexagonal patterned substrate. As expected, the second layer of ordered array structure was obtained successfully on the first layer as shown in Fig. 29b, which can be regarded as so-called Kagome structure [142]. The Kagome structure composed of dielectric rods or wire network has been theoretically investigated and expected to have a large flat band rather than Honeycomb structure [143-145]. In contrast, the same structure based upon polymer microspheres has scarcely been reported until now. The present fabrieation method... 

Encapsulation of Semiconductor Nanoparticles and Their Ordered Array Structure... 

Fig. 34 SEM images of hexagonally ordered array structure in PS-encapsulated CdS (a) and ZnS (b)MPs...

Anyway, the encapsulated CdS or ZnS MPs are clearly spherical, and the size is almost uniform. So it was also possible to arrange these MPs easily on the patterned substrate by means of the tapered cell method. Figure 34 exhibits the SEM images of hexagonally ordered array structure in PS-encapsulated CdS and/or ZnS MPs, which occupied only pits on the patterned substrate within the SEM observation [149], However, the total area of ordered array structure was unfortunately not so... 

Ordered Array Structure of Polystyrene-Encapsulated Polydiacetylene Nanocrystals... 

Moreover, the repeated tapered cell method was performed successfully to construct a heterogeneously ordered array structure as shown in Fig.40a [61]. 

It became possible to array and arrange selectively non-spherical and irregularshaped polymer NCs by encapsulation on a patterned substrate using the tapered cell method. In addition, this repeated procedures may produce a heterogeneously ordered array structure composed of encapsulated NCs and/or MPs having different optoelectronic, photonic, and magnetic properties, which may lead to integrated device application such as functional photonic crystals and super-lattice structure [61]. 

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