Hello, dear members of the forum, I am far from chemistry, so I came to you for advice. There is a need for a window film that will darken from the current supply, after searching, I came to the conclusion that liquid crystals are best suited for this. But the question is, mainly under the influence of current, magnetic field, etc., an ordered structure is formed, which allows light to pass through. Is it possible vice versa, for the structure to be disturbed from the supply of current and the film to darken, and when the power is turned off, the structure is restored? Maybe there are some other chemicals. substances that change their optical properties (reversibly) from the supply of current?
Sorry, English is not my native language, so i may have many mistakes. But i hope, that my message is clear