摘要
Organic-inorganic hybrid perovskite solar cells(PSCs)have attracted extensive attention,and their certified power conversion efficiency(PCE)has reached 25.5%.However,the instability of the high-efficiency 3-dimensional(3D)perovskite against ambient conditions(moisture,light and thermal)and the existing defects severely limit its practical applications and commercialization.Unlike 3D perovskites,the large hydrophobic spacer cations in low-dimensional(2D,ID,and OD)perovskites are able to effectively improve the stability,but they also weaken the light absorption range and hinder charge transport.The construction of a low-dimensional/3D perovskite multidimensional structure,which can combine the advantages of the high stability of low-dimensional perovskites and the superior efficiency of 3D perovskites,is proposed to achieve high efficiency and ultrastability.Moreover,the proper incorporation of low-dimensional perovskite into 3D perovskite can passivate defects and inhibit ion migration.Herein,this article summarizes the recent research progress of low-dimensional/3D perovskite multidimensional structures for PSCs and provides some perspectives toward developing stable and efficient PSCs.
基金
We acknowledge the support from the National Natural Science Foundation of China(Grants No.52025028 and 52002258)
the Natural Science Foundation of Jiangsu Province(Grant No.BK20200877)
“Shuangchuang”Program of Jiangsu Province
the Priority Aca-demic Program Development(PAPD)of Jiangsu Higher Education In-stitutions.
