Anand Prakash, S K Misra and D Bahadur
In this study, the effect of different numbers of layers of reduced graphene oxide (RGO) on the ferromagnetic behavior of zinc oxide–reduced graphene oxide (ZnO–RGO) hybrid architectures has been investigated. Scanning and transmission electron microscopy along with x-ray diffraction of these hybrids confirm that ZnO nanorods are wrapped with different numbers of layers of RGO in a controlled way and their hexagonal phase is unaffected by these layers. Raman and photoelectron spectroscopy of these hybrids reveals that RGO does not alter the nonpolar optical phonon E 2 (high) mode and chemical state of Zn 2+ in ZnO. Electron paramagnetic resonance (EPR) spectra show that RGO passivates singly charged oxygen vacancies ( ##IMG## [http://ej.iop.org/images/0957-4484/24/9/095705/nano448453ieqn10.gif] {${\mathrm{V}}_{\mathrm{OS}}^{+}$} ) in ZnO. It correlates the passivation efficiency of ##IMG## {${\mathrm{V}}_{\mathrm{OS}}...}
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In this study, the effect of different numbers of layers of reduced graphene oxide (RGO) on the ferromagnetic behavior of zinc oxide–reduced graphene oxide (ZnO–RGO) hybrid architectures has been investigated. Scanning and transmission electron microscopy along with x-ray diffraction of these hybrids confirm that ZnO nanorods are wrapped with different numbers of layers of RGO in a controlled way and their hexagonal phase is unaffected by these layers. Raman and photoelectron spectroscopy of these hybrids reveals that RGO does not alter the nonpolar optical phonon E 2 (high) mode and chemical state of Zn 2+ in ZnO. Electron paramagnetic resonance (EPR) spectra show that RGO passivates singly charged oxygen vacancies ( ##IMG## [http://ej.iop.org/images/0957-4484/24/9/095705/nano448453ieqn10.gif] {${\mathrm{V}}_{\mathrm{OS}}^{+}$} ) in ZnO. It correlates the passivation efficiency of ##IMG## {${\mathrm{V}}_{\mathrm{OS}}...}
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