Fig. 3: Transient absorption spectroscopy on spin-coated films. | Nature Communications

Fig. 3: Transient absorption spectroscopy on spin-coated films.

From: High-throughput micro-scale bandgap mapping for perovskite-inspired materials with complex composition space

Fig. 3

a 2D TA plot of spin-coated sequence (Cs3Sb2I9)1-x (Cs3Bi2Br9)x at three different time scales. b Bandgap distribution of printed sequence (Cs3Sb2I9)1-x (Cs3Bi2Br9)x. c Integrated TA spectra (1–10 ps) of films with different compositions in (Cs3Sb2I9)1-x (Cs3Bi2Br9)x. d TA spectra of (Cs3Sb2I9)0.8 (Cs3Bi2Br9)0.2 film at various time delays. e GSB peak positions of all spin-coated compositions in six sequences. f GSB lifetimes of all spin-coated compositions in six sequences. GSB: ground state bleach.

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