Table 1 Compositions of the as-deposited and solvent-annealed films determined by EDS analysis.

From: Single Source Thermal Evaporation of Two-dimensional Perovskite Thin Films for Photovoltaic Applications

Sample

Pb (at%)

I (at%)

Pb/I

As-deposited films

28.21

71.79

0.392

Solvent annealed films

26.76

73.24

0.365

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