Reversible electrochemical mirror

Patent metadata

Field	Value
Publication number	US-2016154288-A1
Application number	US-201514747978-A
Country	US
Kind code	A1
Filing date	Jun 23, 2015
Priority date	Nov 27, 2014
Publication date	Jun 2, 2016
Grant date	—

Abstract

Provided is a reversible electrochemical mirror including a first substrate, a second substrate on the first substrate and spaced apart from the first substrate, a first transparent electrode on the first substrate, a second transparent electrode under the second substrate, a semi-transmissive film between the second substrate and the second transparent electrode, a barrier rib having a chamber between the first and second transparent electrode and an electrolyte solution filled in the chamber.

First claim

What is claimed is:

1 . A reversible electrochemical mirror comprising:
a first substrate; a second substrate on the first substrate and spaced apart from the first substrate; a first transparent electrode on the first substrate; a second transparent electrode under the second substrate; a semi-transmissive film between the second substrate and the second transparent electrode; a barrier rib between the first and second transparent electrode, the barrier rib having a chamber; and an electrolyte solution filled in the chamber.

2 . The reversible electrochemical mirror of claim 1 , wherein the semi-transmissive film includes a metal thin film.

3 . The reversible electrochemical mirror of claim 2 , wherein the metal thin film includes tungsten.

4 . The reversible electrochemical mirror of claim 2 , wherein the metal thin film has a thickness ranging from about 4 nm to about 12 nm.

5 . The reversible electrochemical mirror of claim 1 , wherein the first and second transparent electrodes include indium tin oxide (ITO) or fluorine-doped tin oxide (FTO).

6 . The reversible electrochemical mirror of claim 5 , wherein the second transparent electrode has a thickness ranging from about 100 nm to about 500 nm.

7 . The reversible electrochemical mirror of claim 6 , wherein the second transparent electrode has a thickness ranging from 140 nm to 160 nm, and the reversible electrochemical mirror reflects a red light.

8 . The reversible electrochemical mirror of claim 6 , wherein the second transparent electrode has a thickness ranging from about 220 nm to about 240 nm, and the reversible electrochemical mirror reflects a green light.

9 . The reversible electrochemical mirror of claim 6 , wherein the second transparent electrode has a thickness ranging from about 180 nm to about 200 nm, and the reversible electrochemical mirror reflects a blue light.

10 . The reversible electrochemical mirror of claim 1 , wherein the electrolyte solution includes a mirror metal, a solvent, and an electrolyte.

11 . The reversible electrochemical mirror of claim 10 , wherein the mirror metal includes Ag and Cu.

12 . The reversible electrochemical mirror of claim 11 , wherein a molar concentration ratio of Ag is larger than that of Cu in the mirror metal.

13 . The reversible electrochemical mirror of claim 10 , wherein the solvent includes water, dimethyl sulfoxide, ethylene glycol, gamma butyrolactone, dimethylformamide, or a mixture thereof.

14 . The reversible electrochemical mirror of claim 10 , wherein the electrolyte solution includes a halide or pseudohalide.

15 . The reversible electrochemical mirror of claim 10 , wherein a metal layer is electro-deposited on a surface of the second electrode when a negative potential is applied to the second transparent electrode.

16 . The reversible electrochemical mirror of claim 15 , wherein the metal layer includes Ag and Cu.

Assignees

• Korea Electronics Telecomm

Inventors

• Kim Tae-Youb
• Ah Chil Seong
• Cho Seong-Mok
• Ryu Hojun

Classifications

• G02F1/1525

  characterised by a particular ion transporting layer, e.g. electrolyte · CPC title

• G02F2001/1536

  additional, e.g. protective, layer inside the cell · CPC title

• G02F1/1533 Primary

  structural features not otherwise provided for · CPC title

• G02F1/155 Primary

  Electrodes · CPC title

• G02F1/1506

  caused by electrodeposition, e.g. electrolytic deposition of an inorganic material on or close to an electrode · CPC title