Organic light-emitting device based on spiro-type conjugated compounds

An organic light emitting device comprising:

• an emissive layer sandwiched between at least a cathode and an anode, wherein the emissive layer includes a spiro-type conjugated compound expressed according to the following general formula:
• 17
• wherein X═C or N;
• R1-R16 is independently selected from H, D, alkyl, alkoxyl, silyl, aromatic ring, fused aromatic ring, heteroaromatic ring, fused heteroaromatic ring, diarylamino group, carbazole, and at least one of them being a crosslinkable group consisting of a vinyl double bond or an azide group.

An organic light emitting device comprising:

• an emissive layer sandwiched between at least one change transport layer and an anode and a cathode, wherein the charge transport layer includes a spiro-type conjugated compound according to the following general formula:
• 21
• wherein X═C or N;
• R1-R16 is independently selected from H, D, alkyl, alkoxyl, silyl, aromatic ring, fused aromatic ring, heteroaromatic ring, fused heteroaromatic ring, diarylamino group, carbazole, and at least one of them being a crosslinkable group consisting of a vinyl double bond or an azide group.