Rigid/flexible pastable smart window capable of being transformed among light-emitting state, light-transmissive state, light-blocking state and reflective state and preparation method thereof

Abstract

The invention relates to a rigid/flexible pastable smart window capable of being transformed among a light-emitting state, a light-transmissive state, a light-blocking state and a reflective state anda preparation method thereof and belongs to the technical field of electroluminescence. The smart window is of a five-layer structure, the first layer is a first transparent substrate with a first transparent electrode, wherein the first transparent electrode serves as an anode of an electroluminescent device layer; the second layer is the electroluminescent device layer; the third layer is an intermediate transparent common-electrode layer and serves as a cathode of the electroluminescent device layer and the anode of an electrochromic device layer; the fourth layer is the electrochromic device layer; the fifth layer is a second transparent substrate with a second transparent electrode, and the second transparent electrode serves as a cathode of the electrochromic device layer. The smartwindow can integrate many functions such as natural light transmission, heat preservation, thermal insulation, indoor lighting and privacy protection and is expected to replace existing conventionalindoor facilities such as curtains, wall lamps and make-up mirrors. On the one hand, the light intensity of an area can be adjusted well; on the other hand, the temperature of the area can be controlled, and the effects of saving energy and protecting the environment are achieved.

Description

technical field [0001] The invention belongs to the technical field of electroluminescence, and in particular relates to a rigid / flexible stickable intelligent window which can be mutually transformed between a luminous state-transmissive state-light-blocking state-reflective state and a preparation method thereof. Background technique [0002] The electrochromic and electroluminescent smart windows can be transformed between the luminescent state, the light-transmitting state, the light-blocking state and the light-reflecting state. Smart windows can change their color as needed, and can control the amount of sunlight irradiating the room during the day, thereby reducing energy consumption in indoor temperature control. In addition, smart windows can emit light at night, realize large-area indoor lighting, reduce energy consumption in lighting, and provide new ways and technical guarantees for energy conservation and environmental protection. This type of smart window is e...

AI Technical Summary

Problems solved by technology

However, the application of these materials as electrochromic materials has two main disadvantages: (1) Since the inherent color of the material has a higher extinction coefficient compared with the metal ions in the transparent state electrolyte, it means that its light transmission in the transparent state The pass rate is very low; (2) free electrons are rarely generated in the material, the electric field easily penetrates the material, and most of the incident energy is absorbed or scattered, so the electrochromic device based on this type of material cannot form a mirror state

The function is relatively single, and at the same time, large-scale equipment such as magnetron sputtering must be used to produce transparent conductive layers, electrochromic device layers, ion passing layers, etc., the production cost is high, the process is complicated, and this type of smart window is fragile. There are many inconveniences in the application

[0004] At present, the intelligence of smart windows on the market is only reflected in electrochromism, which displays corresponding colors according to needs, but has not realized automatic electrochromism according to the intensity of sunlight, and cannot realize electroluminescence at the same time, and the corresponding intelligence The window function is relatively single, the production cost is high, and the method is complicated

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