Electronics and Telecommunications Research Institute

Juhee Song

Chil Seong Ah

Hojun Ryu

Tae-Youb Kim

Sang Hoon Cheon

Seong-Mok Cho

Chi-Sun Hwang

Jeong Ik Lee

Yong Hae Kim

Joo Yeon Kim

Doo-Hee Cho

Sujung Kim

Seung Youl Lee

Jisu Han

Provided is a method of manufacturing a thin film electrode for an electrochromic device, and an electrochromic device manufactured thereby. Specifically, a method of manufacturing a thin film electrode for an electrochromic device includes: synthesizing insoluble Prussian blue nanoparticles; adding a surfactant to the insoluble Prussian blue nanoparticles to form water-soluble Prussian blue nanoparticles; adding a solvent and a binder to the water-soluble Prussian blue nanoparticles to form a mixed solution; applying the mixed solution onto an electrode; and performing a drying process on the electrode applied with the mixed solution, wherein the drying process may be performed at 15° C. to 30° C.

Method of manufacturing thin film electrode for electrochromic device and electrochromic device including the same

Provided is a method for producing hexagonal tungsten oxide, the method including preparing an alkaline solvent having a pH of 8 to 9, which contains at least one of water or alcohol, adding tungsten chloride to the alkaline solvent to form a first reaction solution, adding an additive to the first reaction solution to form a second reaction solution, and adding strong acid to the second reaction solution to form nanoparticles. The additive includes any one of an amine compound having 1 to 8 carbon atoms or an aliphatic hydrocarbon derivative having 10 or more carbon atoms.

Method for producing hexagonal tungsten oxide and method for producing electrochromic device including the same

Provided is an electrochromic display device including: a first substrate; a second substrate on the first substrate; an electrolyte layer disposed between the first substrate and the second substrate; a first transparent electrode provided between the electrolyte layer and the first substrate; second transparent electrodes provided between the electrolyte layer and the second substrate; a first electrochromic layer provided between the first transparent electrode and the electrolyte layer; and a second electrochromic layer provided between the second transparent electrodes and the electrolyte layer, wherein the second transparent electrodes each extend in a first direction and be disposed apart from each other in a second direction perpendicular to the first direction, the second electrochromic layer extends between the second transparent electrodes and contacts a lower surface of the second substrate, the first electrochromic layer includes an inorganic electrochromic material, and the second electrochromic layer includes an organic electrochromic material.

Electrochromic display device

Provided is an active camouflage device including a reflective layer, a first electrode disposed on the reflective layer, a second electrode facing the first electrode, and an electrolyte provided between the first and second electrodes. The first electrode includes a transparent electrode, and the second electrode includes a metal mesh.

Active camouflage device

Provided is a reversible electrochemical mirror including a first substrate and a second substrate, which face each other, a first transparent electrode disposed on the first substrate and facing the second substrate, a second transparent electrode disposed on the second substrate and facing the first transparent electrode, an electrolyte solution interposed between the first transparent electrode and the second transparent electrode, and a counter electrode material layer disposed on the second transparent electrode and contacting the electrolyte solution.

Reversible electrochemical mirror

Disclosed is an optical modulator. An optical modulator comprises a substrate, an upper transparent electrode on the substrate, a partition wall providing a chamber between the substrate and the upper transparent electrode, an optical modulation member provided in the chamber and disposed on the substrate, and an electrolyte filling the chamber and including a first metal in an ionic state. The optical modulation member comprises a reflection layer on the substrate, and a lower transparent electrode on the reflection layer.

Optical modulators

Provided is an electrochromic device and a method for driving the electrochromic device, the electrochromic device including a first electrode, a first electrochromic layer, an electrolyte layer, a second electrochromic layer, and a second electrode which are laminated in sequence, at least one selected from among the group consisting of the first and second electrochromic layers and the electrolyte layer including scattering particles, and the electrochromic device further including an additional layer that contains the scattering particles and is disposed between the electrolyte layer and the first or second electrochromic layer.

Electrochromic device

Provided is an electrochromic device including a first electrochromic layer, which includes a first nanostructure having first pores and first electrochromic molecules provided on the first nanostructure, on a first electrode, an electrolyte disposed on a top surface of the first electrochromic layer and extending to first recessed portions of the first electrochromic layer, and a second nanostructure disposed on the electrolyte. The first nanostructure may have the first recessed portions in a top surface thereof. The second nanostructure may have second pores therein and second recessed portions in a bottom surface thereof.

Growing community of inventors

Daejeon, South Korea

Juhee Song