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Figure 1 | Nanoscale Research Letters

Figure 1

From: Cu2ZnSnSe4 nanocrystals capped with S2− by ligand exchange: utilizing energy level alignment for efficiently reducing carrier rec ombination

Figure 1

XRD pattern, Raman spectrum, HRTEM image, and optical absorption spectrum of CZTSe NCs. (a) XRD pattern of CZTSe NCs. [The standard diffraction lines of tetragonal-phase CTZSe (JCPDS 52-0868) are shown at the bottom for comparison.] (b) Raman spectrum of CZTSe NCs. (c) HRTEM image of CZTSe NCs. (d) Optical absorption spectrum of CZTSe NCs. (The inset shows the bandgap of CZTSe NCs).

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