Skip to main content
. 2018 Nov 27;4(1):54–62. doi: 10.1021/acsenergylett.8b02207

Figure 3.

Figure 3

Normalized emission spectra of the CsPbBr3–xIx bulk films (x = 0.63), from different sizes with continuous wave (CW) laser irradiation (Iexc = 10 mW cm–2). (A and C) Initial emission (line) and emission after 10 min of irradiation (dots) were assigned. (A) Emission spectra from films with grain sizes up to 19.5 nm. (B) Tracking of emission feature of the CsPbBr3–xIx perovskite film with 46 ± 7 nm grain size, during 20 min of CW excitation. (C) Emission spectra from films with grain sizes greater than 100 nm.