The spiro aromatic organic compounds are configured to have at least three planar and substan- tially linear moieties and generally have high vitrifiable temperature and high melting point (above 300 ℃), which provide thermal stability to organic electroluminescence (EL) devices.

The research progress of thiophene compounds in photoelectric materials such as electroluminescence materials and photosensitizers was summarized.

The development of organic electroluminescent materials is one of the forefronts and hot areas of the optoelectronic information materials,on account of the advantages of organic electroluminescent materials compared to liner organic molecules and polymers.

A red electroluminescent material DADIN with a high color purity was prepared from 4-(dicyanomethylene)-2,6-dimethyl-4H-pyran as its electron-acceptor and indoline unit as its electron-donor.

As one of the most successful electroluminescent materials,(8-hydroxyquinoline) aluminum(Alq_3) is characterized by many advantages such as high fluorescent quantum yield,excellent thermal stability,high glass transition temperature and excellent morphological stability,electron transporting nature,good film formation ability via vacuum deposition,and so on.