Table 1 Photovoltaic parameters for PSCs without and with MABr treatments.

From: Facile fabrication of large-grain CH3NH3PbI3−xBrx films for high-efficiency solar cells via CH3NH3Br-selective Ostwald ripening

Sample condition

Jsc(mA cm−2)

V oc (V)

FF

PCE (%)

MAPbI3

19.79±0.12

1.053±0.013

0.708±0.025

14.76±0.54

MABr-treated sample

20.64±0.24

1.090±0.019

0.772±0.022

17.37±0.21

  1. FF, fill factor; MABr, methylammonium bromide; PCE, power conversion efficiency; PSC, perovskite solar cell.
  2. S.D.’s from 8 to 12 cells for each type of devices are given. For these devices, relatively poor-quality MAPbI3 films (Fig. 1a) were used as the initial films prior to MABr treatment.
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