Electrochromic nanoparticles and method for producing same

• Main Authors: Cho, Sanggeun, An, Gukhwan, Koo, Sangmo, Park, Koun
• Format: Patent
• Language: English
• Published: 12.01.2021
• Subjects: ADHESIVES; CHEMISTRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; FREQUENCY-CHANGING; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT THEREOF; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS,MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES ASDISCRETE UNITS; NANOTECHNOLOGY; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING

The present invention relates to electrochromic nanoparticles having a core-shell structure, and a method for producing the same. In order to achieve the above or other objectives, an aspect of the present invention provides a method for producing electrochromic nanoparticles having a core-shell structure, the method comprising the steps of: preparing a core having a predetermined particle diameter; and adsorbing different types of electrochromic materials on the surface of the core, wherein the electrochromic materials have different absorption spectra. According to the present invention, it is possible to provide electrochromic nanoparticles having excellent shielding ability against visible rays and a method for producing the same.