Fig. 3
From: Locally collective hydrogen bonding isolates lead octahedra for white emission improvement
Photophysical properties of 0D and 1D lead bromide perovskites. a, b Photos of 1D and 0D crystals in ambient and under UV light (365 nm), respectively. c Excitation (open circle) and emission (circle) spectra of 1D (blue) and 0D (pink) crystals at room temperature. d Time-resolved PL experimental decay (circle) and fitting curve of the 0D (red line) and 1D bulk crystals (blue line) probed at 568 nm and 530 nm, respectively. e CIE chromaticity coordinates of 1D (dot) and 0D (star) crystals. f Temperature dependent emission spectra of 0D (C3H11N3O)2PbBr6·4H2O crystals. g Transient absorption spectrum of 0D crystals upon photoexcitation at 348 nm
