Method for adjusting near-infrared light based on silver nano-wire (Ag NW) substrate electrochromic material

Abstract

The invention discloses a method for adjusting near-infrared light based on a silver nano-wire (Ag NW) substrate electrochromic material, and belongs to the field of preparation and application of functional materials. The method comprises the following steps: preparing a silver nano-wire transparent conductive layer which is uniformly dispersed on a transparent substrate through a silver nano-wire with the length of at least 50 microns and the radius of 80 to 120 nm by a spin-coating method and a vacuum hot pressing method to obtain a transparent conductive electrode; depositing an electrochromic thin film on the surface of the silver nano-wire transparent conductive layer to obtain a silver nano-wire substrate electrochromic thin film; forming a three-electrode system by the obtained silver nano-wire substrate electrochromic thin film, a platinum electrode and an Ag / KCl reference electrode, forming an electrochromic electrochemical reaction system with an electrolyte, and performing colouring / decolouring transformation by controlling an applied voltage so as to perform optical regulation and control at different wavelengths of a near infrared band.

Description

technical field [0001] The invention relates to the preparation of an electrochromic thin film with a silver nanowire base and its application to near-infrared light regulation, and belongs to the field of functional material preparation and application. Background technique [0002] With the rapid development of industry, energy shortage and environmental pollution have become key problems that human society urgently needs to solve. Developed countries use a large amount of energy to regulate the temperature of buildings, among which the energy consumption of air conditioning occupies the first place. Therefore, it has gradually become a consensus to take various measures to reduce energy consumption. For example, smart windows that adjust the solar spectrum to meet energy-saving and comfort requirements have broad application prospects in future buildings and have attracted widespread attention. When many substances are exposed to external effects such as heat, light, and...

AI Technical Summary

Problems solved by technology

However, there are some problems with ITO: 1. The toughness of ITO glass is poor, and there are very strict restrictions and requirements on the preparation, processing and application of electrochromic materials

2. In the face of limited selenium resources and increasing consumer demand, the cost of ITO thin films is becoming more and more expensive

3. Due to the plasmon resonance of ITO at a wavelength of 1300nm, the optical transmittance of the ITO film in the near-infrared band (780-2500nm) is severely reduced

However, the current research mainly focuses on the regulation of flexible devices and the visible light region, and there is almost no research on the near-infrared intelligent regulation.

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