Spirofluorene derivative, material for light-emitting element, light-emitting element, light-emitting device, and electronic device

摘要

It is an object of the present invention to provide a material having a high Tg and a wide energy gap. The present invention provides a spirofluorene derivative represented by General Formula 1. (In the formula, R1 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a group represented by General Formula 2. Each of R2 and R3 is either hydrogen or an alkyl group having 1 to 4 carbon atoms and may be identical or different. R4 is an aryl group having 6 to 15 carbon atoms. Each of R5 and R6 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 15 carbon atoms and may be identical or different.);

主权项

1. A semiconductor device comprising:
an element comprising a material having a molecular weight 698, wherein the material having the molecular weight 698 consists of a first part of a molecular weight 532 and a second part of a molecular weight 166, and wherein the first part is bonded to the second part by a single bond.