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. 2021 Dec 17;2(1):136–149. doi: 10.1021/jacsau.1c00429

Figure 4.

Figure 4

(a–c) Photoluminescence spectra of Cs2AgBiBr6 (a), PeABr1 (b), and PeABr2 (c), as measured on thin films at 80 K and at 300 K. The dashed lines indicate the UV–vis absorption spectra at the corresponding temperature. (d) PL quantum-yield measurement at room temperature.