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US 2020/0090876 A1Published application
Mixed three-dimensional and two-dimensional perovskites and methods of making the same
AssigneeAlliance for Sustainable Energy, LLC
InventorsKai Zhu, Donghoe Kim
Life of this patent
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Abstract
An aspect of the present disclosure is a perovskite that includes A(n−1−nw+w)A′(wn−w)A″2BnX(3n−3zn+3z−4e+1)X′(3zn−3z)X″4e, where each of A, A′, A″ are monovalent cations, B is a divalent cation, each of X, X′, and X″ are monovalent anions, 0<w≤1, 0<z≤1, 0<e≤1, and 1≤n≤100000.
Claims20
A perovskite comprising:
- A(n−1−nw+w)A′(wn−w)A″2BnX(3n−3zn+3z−4e+1)X′(3zn−3z)X″4e, wherein:
- each of A, A′, A″ are monovalent cations,
- B is a divalent cation,
- each of X, X′, and X″ are monovalent anions,
- 0<w≤1, 0<z≤1, 0<e≤1, and 1≤n≤100000.
2 more elements
A method comprising:
- completing a first reaction,
- (1−w)(AX+BX2)+w(A′X′+BX′2)A1−wA′wB(X1−wX′w)3;
- and
- completing a second reaction,
- 2A″X″+(1−e)BX2+eBX″A″2B(X2−2eX″2+2e, wherein:
- the first reaction and the second reaction result in the forming of a perovskite comprising [A1−wA′wB(X1−wX′w)3]n−1[A″2B(X2−2eX″2+20],
- each of A, A′, and A″ are monovalent cations,
- B is a divalent cation,
- each of X, X′, and X″ are monovalent anions,
- 0<w≤1, 0<e≤1, and 1≤n≤100000.
7 more elements
Dependencies are inferred from the claim text.