CN-122018206-A - Electrochromic organic photovoltaic window system and application thereof in building enclosure

CN122018206ACN 122018206 ACN122018206 ACN 122018206ACN-122018206-A

Abstract

The invention belongs to the technical field of intelligent windows, and particularly relates to an electrochromic organic photovoltaic window system and application thereof in building enclosure structures. The electrochromic organic photovoltaic window system comprises a window frame and a glass component, wherein the window frame is arranged on the periphery of the glass component, the glass component comprises a semitransparent organic photovoltaic module and a reversible metal electrodeposition electrochromic module which are arranged in a stacked mode, and a sealing cavity is arranged between the semitransparent organic photovoltaic module and the reversible metal electrodeposition electrochromic module. The electrochromic organic photovoltaic window system provided by the invention has the advantages of high efficiency, high productivity, dynamic energy conservation, comfortable vision and environmental friendliness, and can be widely applied to building envelope structures.

Inventors

LU YANGHUA
HUANG HAOZHOU
TAN GANG
YANG GUOJIAN
WU YIFAN
WANG CHENXI

Assignees

浙江大学长三角智慧绿洲创新中心

Dates

Publication Date: 20260512
Application Date: 20260212

Claims (10)

1. An electrochromic organic photovoltaic window system is characterized by comprising a window frame and a glass component, wherein the window frame is arranged on the periphery of the glass component, the glass component comprises a semitransparent organic photovoltaic module and a reversible metal electrodeposition electrochromic module which are arranged in a stacking mode, and a sealing cavity is arranged between the semitransparent organic photovoltaic module and the reversible metal electrodeposition electrochromic module; The semitransparent organic photovoltaic module comprises a transparent substrate, a first transparent electrode, a hole transmission layer, an active layer, an electron transmission layer, a second transparent electrode and an anti-reflection layer which are sequentially stacked, wherein the anti-reflection layer is in contact with the sealed cavity, the active layer comprises a donor material, an acceptor material and an additive, the donor material comprises PCE10-2F or PCE-10, the acceptor material comprises any one of Y6, BTP-eC9, L8-BO, BO-4Cl, BO-4F and PC 71 BM, and the additive comprises one or more of diisobutylene, 1, 4-diiodobenzene, chloronaphthalene and 1,3,5 trichlorobenzene.
2. The electrochromic organic photovoltaic window system of claim 1, wherein the reversible metal electrodeposition electrochromic module comprises a first conductive transparent substrate and a second conductive transparent substrate that are stacked together, and a liquid electrolyte disposed between the first conductive transparent substrate and the second conductive transparent substrate, wherein one surface of the first conductive transparent substrate is provided with a first transparent conductive layer, one surface of the second conductive transparent substrate is provided with a second transparent conductive layer, the first transparent conductive layer and the second transparent conductive layer are in contact with the liquid electrolyte, and the liquid electrolyte comprises a soluble silver salt, a soluble copper salt, tetrabutylammonium bromide, polyvinylpyrrolidone, and an organic solvent.
3. The electrochromic organic photovoltaic window system according to claim 1, wherein the emissivity of the transparent substrate is more than or equal to 0.8, the emissivity of the anti-reflection layer is less than or equal to 0.3, the mass percentage of the additive in the active layer to the mass of the receptor material is preferably 40-120%, the mass ratio of the donor material to the receptor material in the active layer is preferably 1:1-1:3, and the thickness of the active layer is 40-150 nm.
4. The electrochromic organic photovoltaic window system according to claim 1, characterized in that the material of the active layer further comprises a doping component, which is different from the donor material and the acceptor material, and comprises one or more of PM6, D18, PTQ10, D18-Cl, PPT-3, Y6, BTP-eC9, L8-BO, BO-4Cl, BO-4F and PC 71 BM, and the mass of the doping component preferably accounts for 0.01-50% of the donor material.
5. The electrochromic organic photovoltaic window system according to claim 1, wherein the material of the hole transport layer comprises one or more of PEDOT PSS, 2-PACz, ph-4PACz, thCz, moO 3 、NiO x , 3-PACz, meO-2PACz, fullerene material, BCP, znO and TiO 2 , the thickness of the hole transport layer is 5-60 nm, the material of the electron transport layer comprises one or more of PDINN, PDINO, PDIN, PFN-Br, PFB-Br, PNDIT-F3N, C 60 , BCP and PNDIT-F3N-Br, and the thickness of the electron transport layer is 5-50 nm.
6. The electrochromic organic photovoltaic window system according to claim 1, wherein the material of the first transparent electrode comprises indium tin oxide, fluorine-doped tin oxide or aluminum-doped zinc oxide, the thickness of the first transparent electrode is 100-200 nm, the material of the second transparent electrode is a metal simple substance, the metal simple substance comprises one or more of Ag, cu, al and Au, the thickness of the second transparent electrode is 10-15 nm, the anti-reflection layer is of a single-layer film structure or a double-layer coupling film structure, the material of the single-layer film structure comprises tellurium dioxide, molybdenum trioxide, zinc sulfide, silicon dioxide, titanium dioxide, niobium pentoxide or tantalum pentoxide, the double-layer coupling film structure comprises a first film layer and a second film layer, the first film layer is in contact with the surface of the second transparent electrode, the material of the first film layer comprises LiF, mgF 2 or ZnSe, the material of the second film layer comprises MoO 3 , znS or TeO 2 , and the thickness of the anti-reflection layer is less than or equal to 1000nm.
7. The electrochromic organic photovoltaic window system according to claim 2, wherein the materials of the first transparent conductive layer and the second transparent conductive layer comprise indium tin oxide, fluorine-doped tin oxide or aluminum-doped zinc oxide, and the mass concentration of polyvinylpyrrolidone in the liquid electrolyte is 0.002-0.01 g/mL.
8. Use of the electrochromic organic photovoltaic window system of any of claims 1-7 in building enclosures.
9. The use of claim 8 wherein the building envelope comprises a building exterior window, curtain wall or sunroof; the semitransparent organic photovoltaic module of the electrochromic organic photovoltaic window system is positioned on the outdoor side during application.
10. The application according to claim 9, characterized in that it comprises the following steps: Controlling the reversible metal electrodeposition electrochromic module to switch between a fading state and a coloring state according to environmental parameters, wherein the environmental parameters comprise irradiation intensity and/or environmental temperature; When the reversible metal electrodeposition electrochromic module is switched to a coloring state, the power generation capacity of the semitransparent organic photovoltaic module is enhanced by utilizing the light reflected by the reversible metal electrodeposition electrochromic module.

Description

Electrochromic organic photovoltaic window system and application thereof in building enclosure Technical Field The invention belongs to the technical field of intelligent windows, and particularly relates to an electrochromic organic photovoltaic window system and application thereof in building enclosure structures. Background In modern buildings, windows are the weakest link in the building envelope, and a large amount of energy is lost through the windows in the form of heat conduction and solar radiation. Therefore, the development of an intelligent window technology capable of dynamically regulating solar radiation has great significance in reducing the energy consumption of refrigeration, heating and illumination of buildings. Currently, smart window technology for architectural applications has been developed and optimized mainly along two main directions, semitransparent photovoltaic technology and electrochromic technology. Semitransparent photovoltaic technology (e.g., semitransparent organic photovoltaic, STOPV) is intended to convert windows into energy producers, while allowing some visible light to pass through, converting solar radiation (principally ultraviolet and near infrared) into electrical energy. Electrochromic technology (such as reversible metal electrodeposition device, RME-ECD) can be reversibly switched between transparent state and colored state by external stimulus, and solar heat gain is dynamically controlled, so that remarkable energy-saving effect is achieved. However, in order to achieve high light transmittance, the semitransparent organic photovoltaic glass often needs to sacrifice the thickness of the active layer or use a sparse electrode, which directly results in lower photoelectric conversion efficiency, and meanwhile, the spectral absorption characteristic of the semitransparent organic photovoltaic glass often causes the transmitted light to present an undesirable color (such as blue-violet with high saturation), so that indoor visual comfort is affected, and the semitransparent organic photovoltaic glass does not have dynamic adjustment capability and cannot respond to changing weather and sunlight conditions. Disclosure of Invention The invention aims to provide an electrochromic organic photovoltaic window system and application thereof in building enclosure, the electrochromic organic photovoltaic window system provided by the invention has the advantages of high efficiency and productivity, dynamic energy conservation, comfortable vision and environmental friendliness. In order to achieve the above object, the present invention provides the following technical solutions: the invention provides an electrochromic organic photovoltaic window system, which comprises a window frame and a glass component, wherein the window frame is arranged on the periphery of the glass component, the glass component comprises a semitransparent organic photovoltaic module and a reversible metal electrodeposition electrochromic module which are arranged in a stacking way, and a sealing cavity is arranged between the semitransparent organic photovoltaic module and the reversible metal electrodeposition electrochromic module; The semitransparent organic photovoltaic module comprises a transparent substrate, a first transparent electrode, a hole transport layer, an active layer, an electron transport layer, a second transparent electrode and an anti-reflection layer which are sequentially stacked, wherein the anti-reflection layer is in contact with the sealed cavity, the active layer comprises a donor material, an acceptor material and an additive, the donor material comprises PCE10-2F or PCE-10, the acceptor material comprises any one of Y6, BTP-eC9, L8-BO, BO-4Cl, BO-4F and PC 71 BM, and the additive comprises one or more of Diisobutylene (DIB), 1, 4-Diiodobenzene (DIO), chloronaphthalene (CN) and 1,3,5 Trichlorobenzene (TCB). Preferably, the reversible metal electrodeposition electrochromic module comprises a first conductive transparent substrate, a second conductive transparent substrate and a liquid electrolyte, wherein the first conductive transparent substrate and the second conductive transparent substrate are arranged in a stacked mode, the liquid electrolyte is arranged between the first conductive transparent substrate and the second conductive transparent substrate, a first transparent conductive layer is arranged on one surface of the first conductive transparent substrate, a second transparent conductive layer is arranged on one surface of the second conductive transparent substrate, the first transparent conductive layer and the second transparent conductive layer are in contact with the liquid electrolyte, and the liquid electrolyte comprises soluble silver salt, soluble copper salt, tetrabutylammonium bromide, polyvinylpyrrolidone and an organic solvent. Preferably, the emissivity of the transparent substrate is more than or equal to 0.8, the emissivity of the anti