METHOD FOR THE PREPARATION OF HETEROGENEOUSELECTROLUMINISCENT LAYERS

1. Материал за изготвяне на електролуминесцентни слоеве, съдържащ светещахетерогенна смес, състоящасе от електролуминофор, диспергиран в полимер, представляващ от 30 до 40% полиепоксидна смола с молекулна маса от 4000 до 6000 mol., разтворена в етилгликол, характеризиращ се с това, че хетерогенната смес съдържа допълнително фулеренова добавка.2 претенцииПодадена е декларация за лицензионна готовност съгласно чл. 30 от ЗП. The method is applicable in the manufacture of lightingelements and products for the needs of the indicator andspecilized illumination technology. The layers of the lightingelements made have improved brightness of illumination due to thepresence of fullering particles in the heterogenous mixture, andimproved adhesion and stability as a result of the good wetting ofthe electroluminophore and fullering particles in building theminto the oligomer matrix. By the method, single-component oligomeris used with one solvent and the addition of fullering mixture inwhich the respective elecroluminophore is dispersed. Inparticular, the polymer is oligomer solution of ethylglycol with30-40% polyepoxy resin having high molecular mass (4000 - 6000 mol.units) to which fullering mixture is added containing carbonmacromolecules of the C60, C70, etc. type, dissolved in advance inaromatic hydrocarbons. After the homogenization of the twosolution, the electroluminiphore is dispersed in them. Afteradditional homogenization the heterogenous electroluminiscientmixture produced is applied in an even layer with a thickness from20 to 80 um on a transparent conductive film on a glass substrateand the layer is heat treated at 120 to 180? for 15-20 min.