Two discotic liquid crystalline(LC)molecules consisting of a bowl-shaped corannulene core and five-fold photoactive azobenzene branches with differe nt pa raff i nk side chai ns were developed.Their self-assembly,phot...Two discotic liquid crystalline(LC)molecules consisting of a bowl-shaped corannulene core and five-fold photoactive azobenzene branches with differe nt pa raff i nk side chai ns were developed.Their self-assembly,photo-resp on sive behavior and charge-carrier tran sport properties were investigated in detail.A wider mesophase temperature range was achieved when utilizi ng Ion ger and furcal flexible side chai n substituti on.2D XRD measureme nts revealed the n-packed cora nnulen e-ce ntered lb(i.e.,with furcal side alkoxy I chains)exhibited helical columnar LC phase.This packing structure also led to a higher hole charge carrier mobility of 7.07 ×1O^(-2) cm^(2)-V^(-1)s^(-1) compared to that of the counterpart la with linear side chain substitutions.展开更多
基金supported by the National Natural Science Foundation of China(Nos.51973153,21875157).
文摘Two discotic liquid crystalline(LC)molecules consisting of a bowl-shaped corannulene core and five-fold photoactive azobenzene branches with differe nt pa raff i nk side chai ns were developed.Their self-assembly,photo-resp on sive behavior and charge-carrier tran sport properties were investigated in detail.A wider mesophase temperature range was achieved when utilizi ng Ion ger and furcal flexible side chai n substituti on.2D XRD measureme nts revealed the n-packed cora nnulen e-ce ntered lb(i.e.,with furcal side alkoxy I chains)exhibited helical columnar LC phase.This packing structure also led to a higher hole charge carrier mobility of 7.07 ×1O^(-2) cm^(2)-V^(-1)s^(-1) compared to that of the counterpart la with linear side chain substitutions.
