Enhancement of Electrochromic Polymer Switching in Plasmonic Nanostructured Environment
25
Citation
73
Reference
10
Related Paper
Citation Trend
Abstract:
We explore color switching properties of thin polyaniline (PANI) films deposited on plasmonic nanomesh structures in comparison with the films deposited on flat gold. The nanostructured systems show a much steeper color switching with increasing voltage than the films prepared on flat substrates. A strong difference between nanostructured and flat systems is also observed at small voltages, where nanostructured samples often demonstrate an additional feature in cyclic voltammetry curves and nonmonotonous changes in optical properties. Possible origins of the observed effects are discussed in terms of acceleration of charge transport in nanostructured plasmonic environment and interface-related effects. The results can provide opportunities for enhancing and controlling the electrochromic polymer performance in smart windows or display applications.Keywords:
Nanomesh
We report a comprehensive study on the optical and electronic properties of hierarchical metal nanomesh (NM)/microgrid (MG) structures to evaluate their performance as transparent conductors (TCs).
Nanomesh
Microgrid
Bimetal
Cite
Citations (22)
A regular square mesh structure with 4.5 nm periodicity was formed after annealing an adsorption layer of Ti on W(100) at 1370 K. The nanomesh consists of two self-assembled layers on top of the Ti adlayer, ~3.5 physical monolayers thick on average. The first layer of the nanomesh is composed of wires ~1.3 nm wide arranged along the directions of the W(100) substrate. The second one is formed by islands of ~1.6 nm in diameter arrayed upon crossing sites of the wires. The nanomesh is thermally stable up to 1470 K.
Nanomesh
Square (algebra)
Cite
Citations (5)
Here, we reviewed the electrochromic behaviour and underlying mechanisms of plasmonic metal nanoparticles in the visible spectral range, and discussed the recent key progresses in understanding, controlling and utilizing plasmonic electrochromism.
Plasmonic Nanoparticles
Electrochromic devices
Cite
Citations (13)
We propose a new approach to fabricate the graphene nanomesh through the local catalytic hydrogenation of carbon by Cu nanoparticles. It allows to tune the size and density of the holes in the nanomesh as well as the total edge length of the holes through the control of the thickness of the Cu film. The upshift of both G and 2D peaks in Raman spectra of the graphene nanomeshes indicates that the nanomesh is spontaneously p-type doped. Moreover, the split of G peak reveals that the doping is localized near the edge region of the hole in the nanomesh. Importantly, the nanomesh shows improved chemical enhancement for Raman spectra of absorbed RhB molecules as compared to the graphene. The edges in the nanomesh can enhance Raman spectroscopy via increasing both the local charge transfer and the ability to absorb RhB molecules. The results show that the graphene nanomesh has a great potential for the rapid and sensitive detection for the environmental monitoring and food security.
Nanomesh
Cite
Citations (77)
Abstract The cyclic voltammograms of polyaniline prepared electrochemically were examined in the range −0.2 to 1.0 V vs. SCE in the presence and absence of aniline in the acqueous solution of HBF 4 . Cyclic voltammetry studies show that the polymeric film suffers degradation when the potential exceeds +0.85 V, and below this potential, it is quite stable. The redox reaction of the film is reversible. The polymeric film synthesized at low temperature and high acid concentration exhibits higher electronic conductivities. © 1993 John Wiley & Sons, Inc.
Degradation
Cite
Citations (38)
We have fabricated uniform, large-area, and two-dimensional arrays of gold (and silver) nanomesh structures via metal sputtering on an anodic aluminum template. We studied the localized surface plasmon resonance originating from the edges of nanopores in the nanomesh structure. The resulting metal nanomeshes exhibited strong surface-enhanced Raman scattering (SERS) signals, and the measured SERS response was highly uniform throughout the whole surface area. The localized surface plasmon enhancement at the edge of the nanopores in the metal nanomesh structures is believed to be responsible for the strong SERS response. Also, we fabricated Au/Ag multilayer nanomesh structures with different stacking orders to further enhance the SERS response by utilizing the junctions between Ag and Au nanomesh films. The irradiated light can effectively penetrate deep into the multilayer metal nanomesh films through the nanopores. The SERS enhancement is maximized when the nanomesh structures are stacked alternately with Au and Ag nanomeshes as compared to homogeneous Au/Au or Ag/Ag stacked nanomesh films.
Nanomesh
Nanopore
Cite
Citations (15)
Atomic or molecular preferential adsorption on a surface template provides a facile and feasible means of fabricating ordered low-dimensional nanostructures with tailored functionality for novel applications. In this study, we demonstrate that functionality of C-doped BN nanomesh can be tailored by an external electric field which modifies the strength of the adsorbate binding to the nanomesh. Specifically, selective binding of H, O, H2, and O2 at various sites of the C-doped nanomesh—within the pore, on the wire, and at an intermediate site—is investigated with density functional theory. The calculated results find that atomic species are bound, but the molecular species are not bound to the nanomesh. We have shown that it is possible to modify the adsorbate binding energy with the application of an external field, such that the molecular H2 can be bound at the pore region of the nanomesh. Interestingly, the work function of the nanomesh has a close correlation with the adsorbate binding energy with the BN nanomesh.
Nanomesh
Diachronous
Cite
Citations (11)
A nanotemplate surface that functions as a regular array of traps for molecules such as naphthalocyanine (see picture) is provided by a nanomesh of hexagonal BN on Rh(111), which has now been identified as a single, complete monolayer. The 2-nm-sized pores form at regions where the layer binds strongly to the underlying metal, while the regular network of mesh wires corresponds to regions where the layer is not bonded to the substrate.
Nanomesh
Hexagonal boron nitride
Cite
Citations (219)
Uniform metal nanomesh structures are promising candidates that may replace of indium-tin oxide (ITO) in transparent conducting electrodes (TCEs). However, the durability of the uniform metal mesh has not yet been studied. For this reason, a comparative analysis of the durability of TCEs based on pure Ag and AgNi nanomesh, which are fabricated by using simple transfer printing, is performed. The AgNi nanomesh shows high long-term stability to oxidation, heat, and chemicals compared with that of pure Ag nanomesh. This is because of nickel in the AgNi nanomesh. Furthermore, the AgNi nanomesh shows strong adhesion to a transparent substrate and good stability after repeated bending.
Nanomesh
Indium tin oxide
Cite
Citations (96)
A graphene nanomesh by using a hexagonally ordered Pt nano-network with high-density arrays of periodic nano-holes was synthesized and its field-effect transistor properties are evaluated.
Nanomesh
Cite
Citations (19)