Methods for increasing efficiency and stability of organic perovskite materials
AssigneeArizona Board of Regents on Behalf of the University of Arizona
InventorsDominic V. McGrath, Neal R. Armstrong
Life of this patent
Estimating the term…
Abstract
The present invention provides methods for increasing stability and efficiency of organic perovskite materials for use in various electronic devices. In particular, methods of the invention use a non-peripheral substituted phthalocyanine for passivating defects in organic perovskite materials, thereby increasing its stability and efficiency relative to the same material in the absence of said non-peripheral substituted phthalocyanine.
Claims12
A method for increasing stability or efficiency of an electronic component comprising an organometal halide perovskite material, the method comprising contacting the organometal halide perovskite material with a non-peripheral substituted phthalocyanine in such a manner that increases the stability or the efficiency of the electronic component,
- wherein the contacting comprises at least one of:
- i. coating the non-peripheral substituted phthalocyanine onto a surface of the organometal halide perovskite, or
- ii. adding the non-peripheral substituted phthalocyanine to the organometal halide perovskite during a fabrication process of the electronic component,
- wherein the non-peripheral substituted phthalocyanine is of the formula:
- wherein
- M is Ti═O, Zn, Cu, Fe, V═O, Al—Cl, Ga—Cl, In—Cl, Al—Br, Ga—Br, or In—Br;
- each of XA1, XA2, XB1, XB2, XC1, XC2, XD1, and XD2 is independently S, O, or NR1;
- each of RA1, RA2, RB1, RB2, RC1, RC2, RD1, and RD2 is independently H or C4-C20 alkyl;
- and
- each R1 is independently H, C1-C20 alkyl, or a nitrogen protection group,
- provided at least four of RA1, RA2, RB1, RB2, RC1, XC2, RD1, and RD2 are independently C4-C20 alkyl.
Dependencies are inferred from the claim text.