ZnO and MgZnO Nanocrystalline Flexible Films: Optical and Material Properties

<table>The PL at 77 K of the ZnO film (top) and that of a bulk ZnO crystal (bottom). The bulk ZnO exhibits the bound excitation at 3.361 eV and the free <i>A</i>-exciton at 3.376 eV. The ZnO film exhibits PL in the spectral range of the excitons at ~3.370 eV and in addition a PL at ~3.316 eV attributed to surface defects.</table>

Journal of Nanomaterials

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Figure 9

Figure 9: ZnO and MgZnO Nanocrystalline Flexible Films: Optical and Material Properties 