An electrically-tunable light-transmitting film with two-way electronically controlled nanowire cluster electrodes

Abstract

The invention discloses a double-channel electrically-controlled electric dimming transmission film with a nano wire cluster electrode. The film comprises a patterned public electrode formed by nano wire clusters closely distributed at a nanoscale interval, a top-surface cathode and a bottom-surface metal nanofilm cathode, wherein the top-surface cathode and the bottom-surface metal nanofilm cathode are distributed at the upper end and the lower end of the patterned public electrode respectively; the top-surface cathode and the patterned public electrode are made of light-transmission films which have nano thicknesses and are made of the same material, and the bottom-surface metal nano film cathode is made of a metal film in a nano thickness; the same optical medium materials in the nano thickness are injected between the top-surface cathode and the patterned public electrode and between the patterned public electrode and the bottom-surface metal nanofilm cathode. Fine electrically-controlled dimming can be performed on transmission behaviors of incident light waves, and the film has the characteristics of applicability to a wide spectral domain and relatively intense light beams, insensitivity to polarization and high dimming response speed.

Description

technical field [0001] The invention belongs to the technical field of optical thin film and optical precision measurement and control, and more specifically relates to an electric light-adjustable transmissive film with two-way electronically controlled nanowire cluster electrodes. Background technique [0002] Usually, light waves are separated into reflected waves and transmitted waves passing through the film due to reflection and refraction at the film interface. The energy transported by these two parts of the beam is generally in a specific ratio according to the environment and the dielectric behavior of the film medium. Reflectance and transmittance / coefficients are characterized. In general, optical films for specific uses often show limited or fixed light reflection and transmission performance based on design and process, such as typical high reflectivity, high transmittance, high light separation or filter, high polarization etc., the constructed transport ligh...

AI Technical Summary

Problems solved by technology

[0003] Although the current electric dimming film technology has made great progress in film preparation, improving and enhancing optical and electro-optic properties, and expanding applications, for the increasingly prominent fast dimming, fine tuning, better optical stability, and better Spectrum applicability and other requirements, still showing insufficient capacity

The main conclusions are as follows: (1) The dimming film based on the electrothermal physical properties of the material only has slow dimming ability due to thermal inertia, and is prone to optical instability induced by the environment or photothermal effect, making it difficult to implement fine thermal control operations. At present, picosecond-level laser technology has been widely used in the industry, and femtosecond-level laser technology has become a routine method in the field of scientific research, and it cannot effectively play a role; (2) Electrically adjustable thin films based on electro-induced physical changes , such as a typical liquid crystal structure, its electric dimming response is still slow, and it is easy to saturate or even cause structural damage under strong light; (3) electric dimming films based on electrophysiological and chemical effects, such as typical drive special Gas molecules produce controlled physical and chemical changes, and there are also defects such as low dimming speed, limited range of light intensity fluctuations, only applicable to specific spectral domains, and difficult to perform fine adjustments; (4) Others such as building special interference or diffraction light fields The dimming operation that excites the light field of a specific transport form generally has strong spectral and polarization selectivity and dependence, and it is difficult for the electric tuning operation to be carried out in a wide spectral range.

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