An Alkylated Indacenodithieno[3,2‐b]thiophene‐Based Nonfullerene Acceptor with High Crystallinity Exhibiting Single Junction Solar Cell Efficiencies Greater than 13% with Low Voltage Losses

Adv. Mater. 2018, 30, 1705209 The full chemical name of IDTT in the first paragraph is incorrect. The correct name is 6,12-dihydro-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′]dithiophene (IDTT). The full chemical name of PFBDB-T in the third paragraph is incorrrect. The correct name is poly[(2,6-(4,8-bis(5-(2-ethylhexyl) thiophen-2-yl)-benzo[1,2-b:4,5-b′]dithiophene))-alt-(5,5-(1′,3′-bis(4-fluorothiophen-2-yl)-5′,7′-bis(2-ethylhexyl)benzo[1′,2′-c:4′,5′-c′]dithiophene-4,8-dione)] (PFBDB-T). The authors apologize for any inconvenience that may have been caused due to these errors.