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Photochromic device

An electrochromic material and color-induced technology, applied in the direction of electric solid-state devices, photovoltaic power generation, electrical components, etc., can solve the problems of narrowing the color change range of electrochromic devices, achieve the expansion of color adjustable range, reduce production costs, The effect of simplifying the external circuit

Inactive Publication Date: 2014-05-07
ZHUHAI SINGYES GREEN BUILDING TECH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, their colors are generally darker, and if the overall integrated device structure is adopted, the color change range of the electrochromic device will be reduced

Method used

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Examples

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Embodiment 1

[0021] Implementation example 1: The specific implementation steps are as follows:

[0022] (1) if figure 2 As shown, a transparent conductive material layer 201, such as: ITO (In 2 o 3 :Sn), FTO (SnO:F) or AZO (ZnO:Al), its thickness is between 100nm-200nm, the sheet resistance is less than 30Ω / sq, and the light transmittance is greater than 85%;

[0023] (2) Making an organic photoelectric conversion material layer 300 on the substrate 101 coated with a transparent conductive material 201 by vacuum evaporation method, including:

[0024] a) Cathode modification layer 301 (Cathode modification layer), such as: Bathocuproine (BCP), the thickness of which is between 5nm-50nm;

[0025] b) organic electron acceptor layer 302, such as: C 60 , its thickness is between 10nm-100nm;

[0026] c) The organic electron donor layer 303, such as: chloroaluminum phthalocyanine (ClAlPc), the thickness of which is between 10nm-100nm;

[0027] d) Anode modification layer 304 (Anode mod...

Embodiment 2

[0035] Implementation example 2: The specific implementation steps are as follows:

[0036] Such as image 3 As shown, (1) first make 100 parts of the device:

[0037] a) Utilize the magnetron sputtering method to make a transparent conductive material layer 201 on the transparent non-conductive substrate 101, such as: ITO (In 2 o 3 :Sn), FTO (SnO:F) or AZO (ZnO:Al), its thickness is between 100nm-200nm, the sheet resistance is less than 30Ω / sq, and the light transmittance is greater than 85%;

[0038] b) Make an organic photoelectric conversion material layer, including:

[0039] i. Anode modification layer 301: using spin-coating (spin-coating) to uniformly deposit poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (ie PEDOT:PSS) on the transparent conductive material 201 layer, and at 120 o C for annealing treatment;

[0040] ii. Organic photoelectric conversion active layer 302: the polymer poly(2,60-4,8-bis(5-ethylhexylthienyl)benzo-[1,2-b;3,4-b]dithiophene-...

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Abstract

The invention provides a photochromic device which changes color along with variation of solar ray intensity. An external electric field which controls color change is provided through an organic solar battery which is integrated in the same device. The photochromic device comprises a transparent non-conductive substrate, a transparent conducting layer, an organic solar battery material layer, an electrochromic material layer and an electrolyte layer, wherein the organic solar battery material layer at least comprises a positive layer, a negative layer and an organic photovoltaic conversion material layer. According to the photochromic device, electric power generated through photoelectric effects of the organic solar battery can provide electric power for the electrochromic layer and change of device color is automatically controlled through a light activated switch according to intensity of solar light. The photochromic device has the advantages of operating without additional power supply, being more energy saving and greatly reducing manufacturing costs due to the fact that external circuits are greatly simplified.

Description

Technical field [0001] The invention relates to an electrochromic device, in particular to a photochromic device driven by organic solar cells. Background technique [0002] Electrochromic materials refer to materials that change color due to reversible oxidation or reduction reactions that change the intensity of reflection or transmission of incident light as the polarity and strength of an applied electric field change. Electrochromic materials can be divided into two categories: organic materials and inorganic materials. Inorganic electrochromic materials have received widespread attention due to their stable performance and strong UV resistance, mainly transition metal oxides, such as tungsten oxide, nickel oxide, manganese oxide, etc. If this material is coated on the glass surface, it can be used for the exterior wall of the building. In this way, people can actively control the reflection or transmission intensity of the glass to the light as the seasons and time ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/153H01G9/20
CPCG02F1/163G02F1/153Y02E10/50
Inventor 陈怡武文轩孙金礼罗多
Owner ZHUHAI SINGYES GREEN BUILDING TECH
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