Molecular modification of 2,7-diphenyl[1]benzothieno[3,2-b]benzothiophene (DPh-BTBT) with diarylamino substituents: From crystalline order to amorphous state in evaporated thin films
Introduction of diarylamino substituents on 2,7-dipheny][1]-benzothieno[3, 2-b]benzothiophene (DPh-BTBT) caused morphological change in the evaporated thin-film state: from highly crystalline films with edge-on molecular orientation for DPh-BTBT to amorph