Fig. 7 | Scientific Reports

Fig. 7

From: Highly sensitive hierarchically structured Si-based UV sensor–photodetectors via optimized ZnO–Al2O3 nanocomposite architectures

Fig. 7The alternative text for this image may have been generated using AI.

(a) XRD patterns of pristine ZnO, pristine Al2O3, and ZnO–Al2O3 nanocomposite, confirming phase composition and structural integrity. (b) Experimental FTIR spectra of pristine ZnO and ZnO–Al2O3 nanocomposite, ighlighting surface functional groups and interfacial bonding. (c) Theoretical (DFT-calculated) infrared (IR) spectrum of the ZnO–Al2O3 nanocomposite, illustrating vibrational modes and validating the experimental FTIR features.

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