摘要
Over the past three years, n-type organic semiconductor （nOS） electron acceptors with an acceptor-donor-acceptor （AD-A） structure and a ladder-type conjugated fused ring donor core have been extensively explored for the application in polymer solar cells （PSCs）, because of their excellent optical absorption properties and flexible energy level variability.
Over the past three years, n-type organic semiconductor (nOS) electron acceptors with an acceptor-donor-acceptor (AD-A) structure and a ladder-type conjugated fused ring donor core have been extensively explored for the application in polymer solar cells (PSCs), because of their excellent optical absorption properties and flexible energy level variability[1]. The fused ring core of the n-OS acceptors enhances the intermolecular charge transport and endows the acceptors with faster crystallization speed than fullerene
