Photoelectrochromic device and preparation method thereof

• Main Authors: LI MEI, ZHENG JIANMING, YANG SHUWEI, XU CHUNYE
• Format: Patent
• Language: Chinese; English
• Published: 28.11.2012
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; 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; ELECTRICITY; FREQUENCY-CHANGING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PHYSICS; POLISHES; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention provides a photoelectrochromic device and a preparation method thereof. The photoelectrochromic device comprises a dye-sensitized electrode, an electrochromic electrode and electrolyte containing a redox couple, wherein the electrolyte is positioned between the dye-sensitized electrode and the electrochromic electrode; the dye-sensitized electrode comprises a first transparent conductive substrate, a porous semiconductor film arranged on the surface of the first transparent conductive substrate, and a dye adsorbed on the surface of the porous semiconductor film; the dye is contacted with the electrolyte; the electrochromic electrode comprises an organic porous electrochromic film, a platinum catalyst layer and a second transparent conductive substrate arranged in turn; and the organic porous electrochromic film is contacted with the electrolyte. The photoelectrochromic device has the advantages of stable cycle performance and short color switching time.