Light emitting and electrical properties of pure amorphous thin films of organic compounds containing 2-tert-butyl-6-methyl-4H-pyran-4-ylidene

Electroluminescence efficiency for the system ITO/PEDOT:PSS/Organic compound/BaF/Al was low. For the best compound with malononitrile group it was 0.13 cd/A and 0.036 lm/W. These compounds most probably could be more suitable as a light emitting dopant in electroluminescence layer.