公开(公告)号：US20180358184A1

公开(公告)日：2018-12-13

申请号：US16069032

申请日：2017-12-17

申请人： IMEC VZW ,  Katholieke Universiteit Leuven, KU LEUVEN R&D

发明人： Jeffrey Gerhart Tait ,  Kira Gardner ,  Robert Gehlhaar ,  Weiming Qiu ,  Tamara Merckx

IPC分类号： H01G9/20 ,  H01L51/00 ,  C09D5/24 ,  C07F7/24 ,  H01L51/42 ,  H01G9/00

CPC分类号： H01G9/2009 ,  C07F7/24 ,  C09D5/24 ,  C23C18/1216 ,  H01G9/0036 ,  H01L51/0007 ,  H01L51/0028 ,  H01L51/0056 ,  H01L51/006 ,  H01L51/0077 ,  H01L51/4226 ,  H01L51/4253

摘要： The present invention relates to a composition comprising one or more perovskite precursors dissolved in a mixture of solvents comprising: i. one or more polar aprotic solvents, each selected in such a way that it can, when used in absence of other components, dissolve said one or more perovskite precursors, ii. one or more linear alcohols of general formula CnH2n+1OH, wherein n is from 1 to 12, and iii. optionally, one or more acids wherein the polar aprotic solvent or mixture of polar aprotic solvents represent between 50 and 95 vol % of the mixture of solvents, wherein the vol % of the mixture of solvents not occupied by polar aprotic solvents is occupied for at least 90 vol %, preferably for 100 vol %, by the one or more linear alcohols, and the one or more acids if present.