Nonfullerene　electron　acceptor　materials　have　gained　enormous　attention　due　to　their　potential　as　replacements　of　fullerene　electron　acceptors　in　bulk　heterojunction　organic　solar　cells.　A　novel　thiophene　bridged　selenophene-containing　perylene　diimide　acceptor　PDISe-T　has　been　synthesized　and　applied　as　an　acceptor　in　nonfullerene　organic　photovoltaic　cells.　The　inverted　organic　photovoltaic　(OPV)　solar　cells　based　on　PDISe-T:PBT7-Th　(acceptor:donor)　blends　give　a　power　conversion　efficiency　(PCE)　value　of　2.53%　with　an　open-circuit　voltage　(V-oc)　of　0.92　V,　a　J(sc)　of　6.55　mA　cm(-2),　and　a　fill　factor　(FF)　of　0.42.