The result data showed, compared with the LUMO level of polyfluorene has been reported, the values of the LUMO level of the hyperbranched polymers decreased after introducing the heteroaryl moieties.

• 从电化学测试结果来看，引入缺电子基团后，材料的LUMO能级相对于已经报道的聚芴的LUMO能级有所下降，其值更接近于阴极材料的功函数。