US 11,901,177 B2 · Enhanced perovskite materials for photovoltaic devices

Abstract

A perovskite material that has a perovskite crystal lattice having a formula of CxMyXz, and alkyl polyammonium cations disposed within or at a surface of the perovskite crystal lattice; wherein x, y, and z, are real numbers; C comprises one or more cations selected from the group consisting of Group 1 metals, Group 2 metals, ammonium, formamidinium, guanidinium, and ethene tetramine; M comprises one or more metals each selected from the group consisting of Be, Mg, Ca, Sr, Ba, Fe, Cd, Co, Ni, Cu, Ag, Au, Hg, Sn, Ge, Ga, Pb, In, Tl, Sb, Bi, Ti, Zn, Cd, Hg, and Zr, and combinations thereof and X comprises one or more anions each selected from the group consisting of halides, pseudohalides, chalcogenides, and combinations thereof.

Claims30

Dependent claims

A perovskite material comprising:

a perovskite crystal lattice having a formula of CxMyXz;
and
an alkyl polyammonium cations disposed within or at a surface of the perovskite crystal lattice;
wherein:
x, y, and z, are real numbers;
C comprises one or more cations selected from the group consisting of Group 1 metals, Group 2 metals, ammonium, formamidinium, guanidinium, and ethene tetramine;
M comprises one or more metals each selected from the group consisting of Be, Mg, Ca, Sr, Ba, Fe, Cd, Co, Ni, Cu, Ag, Au, Hg, Sn, Ge, Ga, Pb, In, Tl, Sb, Bi, Ti, Zn, Cd, Hg, and Zr, and combinations thereof;
and
X comprises one or more anions each selected from the group consisting of halides, pseudohalides, chalcogenides, and combinations thereof.

6 more elements

Dependencies are inferred from the claim text.

Enhanced perovskite materials for photovoltaic devices

Life of this patent

Enhanced perovskite materials for photovoltaic devices

Life of this patent

Abstract

Claims30