Condensed-cyclic compound, electroluminescent device and method for manufacturing thereof

A method of manufacturing an electroluminescent device, comprising the steps of:

• providing a substrate;
• spin coating or vapor depositing a hole transport layer on the substrate;
• vapor depositing a light-emitting layer on the hole transport layer, wherein a material of the light-emitting layer is a condensed-cyclic compound, the condensed-cyclic compound is represented by a following general formula:
• wherein —R1, —R2 and —CHO are connected to any one of an unsaturated carbon atom of a naphthalene ring;
• —R1, —R2 are respectively a hydrogen and any one of an alkane group or a condensed-cyclic aromatic hydrocarbon group, the alkane group is —CnH2n+1, where 1≤n≤12;
• the condensed-cyclic aromatic hydrocarbon group is a benzene, a naphthalene, an anthracene, a pyrene, a phenanthrene or a perylene group;
• and
• vapor depositing an electron transport layer and a metal cathode layer on the light-emitting layer sequentially.