Physics

Lattice energy

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Perovskite (structure)

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Materials science

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Doping

Journal of Materials Chemistry A

Substitution of Pb2+ sites with smaller isovalent ions is used to optimize the crystal lattice of inorganic CsPbBr3 perovskite through releasing lattice strain, increasing the formation energy of vacancies and tuning the bandgap energy distribution.

Divalent hard Lewis acid doped CsPbBr3 films for 9.63%-efficiency and ultra-stable all-inorganic perovskite solar cells