Photonic and Electronic Applications of Mesoscopic Polymer Assemblies

Abstract

Mesoscopic two-dimensional patterns, regular dots, stripes, and honeycomb networks are formed when dilute organic solutions of polymers are cast on solid surfaces. Dynamic patterns, so-called "dissipative structures", formed in the non-equilibrium thermodynamic process of solvent evaporation, are fixed as the two-dimensional polymer patterns on substrates. Some photonic and electronic applications of the mesoscopic polymer patterns are described in this article.

Preparation of honeycomb scaffold with hierarchical porous structures by core-crosslinked core–corona nanoparticles

“…In recent years, the control of three-dimensional structures in nanometer or micrometer scales has drawn a lot of attention for its potential applications such as tissue engineering [1][2][3][4], separation, microreactors, biointerfaces [5,6], catalysts, microstructured electrode surfaces [7], and photonic band gap crystals [8]. In the application of tissue engineering or other biomimetic fields, a sort of porous scaffold with hierarchically multilevel length of pores is desirable [1,2].…”

Microporous Honeycomb-Structured Films of Semiconducting Block Copolymers and Their Use as Patterned Templates

“…STM-induced photon emission from metal substrates has been identified as arising from radiative decay of plasmon modes [10,16,17] excited by inelastic electron tunneling (IET) from the biased tip to the surface and localized between them. The influence of surface morphology has been studied experimentally on rough granular surfaces.…”

“…The detection of locally excited luminescence at the junction of a STM tip provides access to electron dynamic properties at the surface, which makes it possible to study luminescence phenomena of nanometer-sized structures. This provides local information on chemical, [10,11] electronic, [12,13] and optical [13±15] properties.…”

Solvent‐Directed Self‐Assembly of π Gelators to Hierarchical Macroporous Structures and Aligned Fiber Bundles

“…Subsequent evaporation of the water droplets results in honeycomb macroporous structures in analogy to the previously reported breath figure process. [13][14][15]27] The role of weak H-bonds between the chlorine atoms of chloroform and the amide H atoms in OPVs may also contribute to the observed optical and morphological changes. [28] However, in toluene, the cross-linked self-assembly prevails, which leads to the formation of 2D ribbons.…”