Optical properties of polar thin films: ZnO (0001) and ZnO (000–1) on sapphire substrate
Source abstract
Abstract
Abstract In this paper, the optical properties of ZnO (0001) and ZnO (000–1) films were systematically studied. ZnO polar films were deposited on sapphire substrates by Molecular beam epitaxy (MBE). The morphology, structure and optical properties of the ZnO polar films were measured by atomic force microscopy (AFM), X-ray diffraction (XRD), photoluminescence spectra (PL), absorption spectra and spectroscopic ellipsometry (SE), and the results show that the bandgap obtained by SE was consistent with that obtained by absorption spectrum. Moreover, compared with ZnO (000–1) films, the optical bandgap appears red shift on ZnO (0001) films, which may be caused by impurity states near the bottom of the ZnO conduction band.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: ZnO doping and properties · Ga2O3 and related materials · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (49)
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