Optical and ferromagnetic properties of Cr doped ZnO nanorods
Source abstract
Abstract
Abstract ZnO nanorods doped with 1–2 wt% Cr were grown on Si substrates by hydrothermal method. Scanning electron spectroscopy and X-ray diffraction show the hexagonal structure of the nanorods with ZnO oriented along (1 0 0), (0 0 2), (1 0 1) and (1 0 2) and CrO 2 along (2 1 1). Ionized donor bound exciton, neutral donor bound exciton, free exciton, two-electron-satellite of hydrogen donor bound exciton, and donor acceptor pairs were observed in low temperature photoluminescence spectra. The photoluminescence spectra along with XPS results confirm that Zn i was formed in the low temperature hydrothermal process. Superconducting quantum interference device measurement reveals that the Cr-doped ZnO nanorods are ferromagnetic with saturation magnetization of 2.421 × 10 −3 emu/g. The room temperature ferromagnetic properties are explained by defect-mediated bound magnetic polarons based on Zn i.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: ZnO doping and properties · Copper-based nanomaterials and applications · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
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