Details

Autor(en) / Beteiligte

• Cui, Hai Tao

Titel

Microstructure and magnetic and optical properties of mn2+-doped mgxzn1-xo powders

Ort / Verlag

ProQuest Dissertations & Theses

Erscheinungsjahr

2010

Quelle

ProQuest Dissertations & Theses A&I

Beschreibungen/Notizen

• Translation from original language as provided by authorIn this paper, Mn-doped MgxZn1-xO samples were prepared through sol-gel method. Then X-ray diffraction, Raman spectroscopy, superconducting quantum interference magnetometers and cathode-ray luminescence spectrometer were used to characterize the morphology, structure, magnetic, optical properties of the samples. We dedicated to research the impact of Mn2+ to their optical and magnetic properties. Through the analysis of XRD patterns, samples present good hexagonal wurtzite structure. For the samples didn't reduce, in addition to ZnO diffraction peaks, two more diffraction peaks at the 2θ=29.95°and 2θ=43.17°location were found. After anlysis we concluded that the former diffraction peaks belonged to ZnMn2O4 while the latter came from MgO. However, the samples did not appear redandently peaks after reduction but still maintained the wurtzite structure of ZnO. We thought this was involved with O vacancies (Vo) which introduced through reduction. After calc