Flexible transparent electrode structure having superior light transmittance, water permeation resistance and oxygen permeation resistance, method for preparing the same, and organic optoelectronic device using the same

The patent combines metal nanowires with transparent conductive oxide (TCO) materials to create a composite electrode structure. The TCO matrix provides high light transmittance while the metal nanowire network embedded within maintains high electrical conductivity, resolving the contradiction between these two properties.

The patent creates a hierarchical structure where metal nanowires are selectively distributed within the TCO matrix at specific locations and concentrations. This local optimization allows the electrode to achieve high conductivity in regions where nanowires are present while maintaining overall high transmittance through the transparent TCO regions.

The patent introduces an encapsulation layer as an intermediary between the metal nanowire electrode and the external environment. This encapsulation layer acts as a barrier that prevents water and oxygen from reaching the metal nanowires, thereby preventing oxidation while maintaining the electrical conductivity benefits of the metal nanowire structure.

The patent creates a composite structure combining the metal nanowire-TCO electrode with an encapsulation material layer. This composite design provides both the electrical conductivity of metal nanowires and the protective barrier properties of the encapsulation material against water and oxygen permeation.

The patent replaces rigid ITO with a flexible composite structure consisting of thin TCO films combined with metal nanowire networks on flexible substrates. This thin-film composite design maintains high light transmittance while providing the flexibility needed to withstand bending without cracking, as the nanowire network can deform elastically.

The patent creates a composite electrode system combining brittle TCO materials with flexible metal nanowires and flexible substrates. The metal nanowire network provides mechanical flexibility and crack resistance, while the TCO component maintains high optical transmittance, resolving the contradiction between rigidity and flexibility.

The patent introduces an encapsulation layer as a protective intermediary between the silver nanowire electrode and the ambient environment. This encapsulation layer serves as a barrier that prevents water and oxygen from the air from reaching the silver nanowires, thereby preventing oxidation while preserving the flexibility advantages of the nanowire structure.

The patent extracts the silver nanowire electrode from direct exposure to the external environment by placing it within an encapsulated structure. This separation removes the harmful interaction between the reactive silver nanowires and atmospheric water/oxygen, preventing oxidation while maintaining the inherent flexibility of the nanowire network.