the National Key R&D Program of China(2018YFB1500101);National Basic Research Program of China(No.2015CB932200);CAS-Iranian Vice Presidency for Science and Technology Joint Research Project(No.116134KYSB20160130).
A new benzothiadiazole-based D-A-D hole transport material(DTBT)has been designed and synthesized with a more planar structure by introducing of thiophene bridges.The results indicate a lower band gap and quite higher...