Highly conductive and flexible color filter electrode using multilayer film structure

Abstract

In this paper, a high performance flexible component that serves as a color filter and an electrode simultaneously is suggested. The suggested highly conductive and flexible color filter electrode (CFE) has a multilayer film structure composed of silver (Ag) and tungsten trioxide (WO3). The CFE maintained its color filtering capability even when the films were bent on a polyethylene terephthalate (PET) film. Low sheet resistance of the CFE was obtained using WO3 as a bridge layer that connects two Ag layers electrically. The sheet resistance was less than 2 Ω/sq. and it was negligibly changed after bending the film, confirming the flexibility of the CFE. The CFE can be easily fabricated using a thermal evaporator and is easily patterned by photolithography or a shadow mask. The proposed CFE has enormous potential for applications involving optical devices including large area devices and flexible devices.

Synthesis and structural characterization of a new SbPO4-GeO2 glass system

“…The EPR spectra in Fig. 8 are similar to those reported for vanadium-doped glasses [19,24,43] and are typical of VO 2+ ions in axially distorted sites. The EPR spectra can be described in terms of the spin-Hamiltonian for d [1] ions in axial symmetry,…”

P‐127: Angle Insensitive Flexible Color Filter Electrodes

“…A color filtering function is achieved by proper light interference with optimized film thicknesses and two electrically connected silver layers make the CFEs highly conductive, with a value of less than 2 Ω/sq. [1] In order to fabricate the CFEs, the optimized CFE thicknesses fabrication method were adopted from a previous study. [1] Figure 2 shows the fabricated flexible CFEs having blue, green, and red color.…”

“…[1] In order to fabricate the CFEs, the optimized CFE thicknesses fabrication method were adopted from a previous study. [1] Figure 2 shows the fabricated flexible CFEs having blue, green, and red color. The most important advantage of CFEs is that they can be used as a color filter and an electrode simultaneously, as Figure 2 shows.…”

“…Flexible color filter electrodes (CFEs) have attracted attention as new electrical components for future optical devices such as flexible organic light emitting diodes, wearable displays, and flexible E-paper, based on their high conductivity and flexibility with an optical color filtering function which are the essential properties in the optical devices. [1]- [4] It was experimentally demonstrated in a previous study that the electrical and optical properties of flexible CFEs were maintained after a bending test [1], thus showing the potential for applications involving flexible devices. However, in order to allow their use in flexible devices, the CFEs should have an angle insensitive color filtering property because color would be changed at different viewing angles without this property.…”

Strong Interference in Planar, Multilayer Perfect Absorbers: Achieving High-Operational Performances in Visible and Near-Infrared Regimes

“…Considering that these designs work based on the interference between reflected and transmitted waves, as we increase the angle of incidence, the optical path of the light increases, which subsequently leads to a red shift in the spectrum. This can be decrease by using high-index, dielectric insulator spacers, e.g., Si nitride [98], Zn sulfide [42], WO3 [39], and TiO2 [19], [29], [41]. Based on Snell's law, as (b) the optical image of fabricated color filters, and (c) the transmission response of these filters with different spacer thicknesses.…”