英文名称
4-[5-[2',7-Bis[5-[4-[5-(9,9-dioctylfluoren-2-yl)thiophen-2-yl]-2,1,3-benzothiadiazol-7-yl]thiophen-2-yl]-7'-[5-[7-[5-(9,9-dioctylfluoren-2-yl)thiophen-2-yl]-2,1,3-benzothiadiazol-4-yl]thiophen-2-yl]-9,9'-spirobi[fluorene]-2-yl]thiophen-2-yl]-7-[5-(9,9-dioctylfluoren-2-yl)thiophen-2-yl]-2,1,3-benzothiadiazole