Fig. 2: PQDs and devices characterization. | Light: Science & Applications

Fig. 2: PQDs and devices characterization.

From: Dual-function perovskite light-emitting/sensing devices for optical interactive display

Fig. 2: PQDs and devices characterization.

a Schematic diagram of the lattice structure of CsPbBr3 PQDs. b HRTEM images of PQDs. c PL (green line) and absorption (black line) spectra of PQDs. The inset is a photoluminescence photo of PQDs ink. d XRD spectra of PQDs. e PL attenuation curve of PQDs ink. f Schematic of the SD-PQLED and g, h the pictures on the right are cross-sectional TEM images showing clear contrast between the multilayer devices

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