Thiazole/pyrazinyl fused ring receptor and preparation method and application of trapezoidal conjugated polymer semiconductor material of thiazole/pyrazinyl fused ring receptor

The invention discloses a thiazole/pyrazinyl fused ring receptor and a preparation method and application of a trapezoidal conjugated polymer semiconductor material of the thiazole/pyrazinyl fused ring receptor. The material has a structural formula shown as a formula (I) and a formula (II). According to the preparation method, 4, 7-dibromo-5, 6-nitrobenzo [c] [1, 2, 5] thiadiazole and 5-acenaphthene pinacol borate are taken as initial raw materials, and Suzuki-Miyaura coupling, Cadolan cyclization, nucleophilic substitution, LiAlH4 reduction, condensation and benzeneseleninic anhydride oxidation methods are adopted, so that the tetraketone functional aza-helicene monomers 5 and 7 are prepared. And further performing Knoevenagel condensation reaction with 1, 2-benzene diacetonitrile and 2, 2 ', 2' ', 2 '''-(benzene-1, 2, 4, 5-tetraacyl) tetraacetonitrile respectively to prepare the thiazole/pyrazinyl fused ring receptor as shown in the formula (I) and the formula (II) and the trapezoidal conjugated polymer se