申请人:IMEC VZW
公开号:US10614964B2
公开(公告)日:2020-04-07
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.
本发明涉及一种组合物,该组合物包含溶解在溶剂混合物中的一种或多种过氧化物前驱体,溶剂混合物包括
i. 一种或多种极性烷基溶剂,每种溶剂在没有其他成分的情况下均可溶解上述一种或多种包 晶体前驱体、
一种或多种通式为 CnH2n+1OH 的线性醇,其中 n 为 1 至 12,以及
一种或多种酸
其中极性烷基溶剂或极性烷基溶剂混合物占溶剂混合物的 50 至 95 Vol %,其中未被极性烷基溶剂占据的溶剂混合物的 Vol % 被一种或多种线性醇和一种或多种酸(如果存在)占据至少 90 Vol %,最好是 100 Vol %。