Electroluminescence anode aluminum oxide in ketones

The film of aluminum oxide formed by electrolysis in distilled water demonstrated the possibility of generating its electroluminescence in ketones and related compounds containing carbonyl groups. For acetone, cyclohexanone, methylpyrrolidone, acetylacetone, 4-ethylpropiophenone and 4-methoxypropiophenone, it was established that this process proceeds without electrolysis of the above compounds. It was shown that at constant voltage and temperature, the brightness-kinetic characteristics of luminescence are significantly affected by a combination of the following factors: the structure and elemental composition of hydrocarbon radicals of ketones, the number of carbonyl groups at these radicals, the thickness and structural organization of Al$_2$O$_3$ oxide films, on the surface of which local amplification is possible electric field strengths up to values of the order of 10$^6$ V/m, sufficient to initiate and maintain ionization processes leading to generation light.