For the third experiment, I bought three different two-component epoxy resins, which ended up with 4 binders for the phosphor and three for the dielectric layer, plus titanium dioxide and barium titanate as the filler for the dielectric layer - a total of 12 combinations. For each of them, I made 4 samples, having received a total of 48 indicators. They all worked - I turned them on on the stream on the live channel. Together with the audience, we chose one sample in each group, turned them on in parallel, and left them overnight. Until the sun rose, the brightness was kept at the same level, which is already fine

And I got the leaders - epoxy parquet varnish and boxepox epoxy.

The main mistake of this experiment was that I did not grind the phosphor layer, but applied a rather thick dielectric layer on top of it, and then glued it to it! As a result, the total layer thickness was over 300 micrometers! This is a lot.