Methods for Manufacturing Highly Efficient Wide-Gap Perovskite Solar Cells

Kai Zhu (Inventor), Qi Jiang (Inventor), Jinhui Tong (Inventor)

Research output: Patent


The present disclosure relates to a device that includes a layer that includes a perovskite, where the layer has a first side and a second side defining a thickness, the perovskite has a bulk composition as defined by AB(X.sub.1-yX.sub.y').sub.3, where A includes a first cation, B includes a second cation, X includes iodide, and X' includes bromide, y is between 0.2 and 0.8, inclusively, and the thickness has a bromide concentration gradient across the thickness with a maximum concentration at or in the proximity of the first side and a minimum concentration at the second side.
Original languageAmerican English
Patent number11,985,836 B2
Filing date14/05/24
StatePublished - 2024

NREL Publication Number

  • NREL/PT-5900-89938


  • bromide concentration gradient
  • scanning electron microscopy
  • transient absorption (TA)


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