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. Author manuscript; available in PMC: 2023 Sep 16.
Published in final edited form as: Nanoscale. 2023 Jan 27;15(4):1629–1636. doi: 10.1039/d2nr06129e

Figure 3.

Figure 3.

Synthesis and characterizations of cesium lead halide PQDs. (a&b) Representative TEM images (a) and corresponding size distributions (b) of (i) CsPbBr3, (ii) CsPb(Br0.3I0.7)3, and (iii) CsPbI3 PQDs. (c) XRD patterns of CsPbBr3, CsPb(Br0.3I0.7)3, and CsPbI3 PQDs. (d) Brightfield (top) and luminescence (bottom) image of CsPbBr3, CsPb(Br0.3I0.7)3, and CsPbI3 PQDs dispersed in toluene. (e) Absorption (dashed lines) and photoluminescence (solid lines) spectra of CsPbBr3, CsPb(Br0.3I0.7)3, and CsPbI3 PQDs. (f) The International Commission on Illumination (CIE) chromaticity diagram overlaid with the emission color of CsPbBr3, CsPb(Br0.3I0.7)3, and CsPbI3 PQDs. The color gamut defined in the NTSC color standard is highlighted by the white dashed triangle.