Selective Coating of SnS on the Bio‐Inspired Moth‐Eye Patterned PEDOT:PSS Polymer Films

Abstract

A new strategy for the selective coating of tin sulfide (SnS) on the surface of moth‐eye patterned (MEP) conducting polymer film is studied by considering the optical properties of the antireflective moth‐eye pattern and flexibility of polymer films. The semiconductor SnS is selectively coated on the surface of MEP microdomes of poly(3,4‐ethylenedioxythiophene) poly(styrene‐sulfonate) (PEDOT:PSS) film. The SnS coated MEP film is obtained by using pore selectively SnS thin layer functionalized polystyrene honeycomb‐patterned porous (HCP) film as a template. Aqueous PEDOT:PSS solution is poured on the SnS functionalized HCP films and detached for the fabrication of SnS coated MEP films. The films show a satisfactory photo‐responsive property under solar stimulated light illumination due to the antireflective MEP structure of PEDOT film and homogenous SnS coating on the surface of the conducting polymer.

Modified Breath Figure Methods for the Pore-Selective Functionalization of Honeycomb-Patterned Porous Polymer Films

“…Similarly, tin sulfide (SnS) was functionalized in the pores of PS HCP porous films using H 2 S in the humidity as the reacting agent, shown in Figure 18 [ 109 ]. The pore-selective coating of SnS was used as a template for the fabrication of a moth-eye patterned film for antireflection due to its photo-responsive property under solar stimulated light illumination [ 114 ]. Modigunta et al fabricated a temperature-sensitive polymer, poly (N-isopropyl acrylamide) (PNIPAAm), inside the pores of the HCP porous films using this same strategy.…”

“…As the porous films are composed of the polymer framework and pores, their use can be applicable to frameworks and pores [ 121 ]. Compared with the vigorous progress of the framework, the applications of pores is less reported, acting as secondary templates [ 105 , 114 , 122 ], selective antibacterial surfaces [ 5 , 113 , 123 ], catalysis [ 70 , 71 ], selective cell culturing [ 5 , 123 ], drug capture and release [ 95 , 115 ], or in protein recognition [ 87 , 89 ], as shown in Figure 21 . Thus, how to develop the new functions of the cavities becomes very meaningful, which will bring new vitality to the field of porous films.…”

Gifts from Nature: Bio‐Inspired Materials for Rechargeable Secondary Batteries

“…Biopolymers that can be applied to the surface to provide a superior performance include chitosan and PDA, which contain functional groups, PEDOT, and self‐healing polymers, which mimic the unique characteristics of the bio‐inspired materials. [ 251–255 ]…”

“…Biopolymers that can be applied to the surface to provide a superior performance include chitosan and PDA, which contain functional groups, PEDOT, and self-healing polymers, which mimic the unique characteristics of the bioinspired materials. [251][252][253][254][255] A naturally occurring linear polysaccharide, chitosan, has several amino and hydroxyl groups that determine its hydrophilic nature and provide sufficient conductivity due to the nitrogen contained within the structure. [256] This substance could be applied to the surface of the electrode material to replace the carbon coating and induce a stable solid electrolyte interface (SEI) layer formation.…”

“…Representative self-healing biopolymers include supramolecular rubber and PEDOT. [254,255] Supramolecular rubbers used with batteries should spontaneously recover without external stimuli and be formed with randomly branched hydrogen-bonding polymers. [264] Such selfhealing polymers should be highly stretchable and capable of repeated and reversible recovery.…”