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. 2021 Aug 6;13:169. doi: 10.1007/s40820-021-00688-2

Fig. 5.

Fig. 5

a Schematic of film architecture (perovskite/glass) for PL measurements. b Steady-state PL spectra and c PL decay curves of perovskite films with and without BBF additive. d Schematic of film architecture (Spiro-OMeTAD/perovskite/glass) for PL measurements. e Steady-state PL spectra and f PL decay curves of Spiro-OMeTAD/perovskite/glass. The space-charge-limited current versus voltage of g devices (FTO/TiO2/perovskite/PCBM/Ag) fabricated h without and i with BBF additive