Germanium Catalyzed Amorphous Silicon Dioxide Nanowires Synthesized via Thermal Evaporation Method

Jumidali, Mohd Muzafa; Hashim, Abdul Manaf; Sulieman, Kamal Mahir

doi:10.1063/1.3587010

Cited by 2 publications

(1 citation statement)

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“…Raman peak at 520 cm 21 is attributed to the optical phonon mode of Si substrate. 18 Pure ZnO films shows two typical ZnO Raman peaks, where the peaks at 577 and 1152 cm 21 are assigned as E 1 (LO) and its overtones, respectively. 19 Compared with pure ZnO sample, the introduction of Ge dopant causes the obvious change of Raman spectra, as shown in spectrum 1 of Fig.…”

Section: Resultsmentioning

confidence: 99%

Phase transition and optical properties of Ge doped ZnO films synthesised by sputtering

Fan

Zhang

et al. 2015

Materials Science and Technology

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Ge doped ZnO films were deposited on Si substrates by sputtering technique. With the increasing annealing temperature, the crystal quality of samples becomes gradually better and the phase transition can be observed at annealing temperature of 600uC. X-ray photoelectron spectroscopy results show the incorporation of Ge into the ZnO films with 14?81 at-%Ge content. Fourier transform infrared spectroscopy absorption spectra of samples annealed at above 600uC display vibration mode of n (ZnO 4 ) and n (GeO 4 ) in Zn 2 GeO 4 . The enhancement of ultraviolet emission intensity should be attributed to the yielded mass holes caused by Ge doping and the rising crystal quality. The sample annealed at 800uC displays the strongest blue emission due to the native defects in Zn 2 GeO 4 films or/and surface defects.

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Section: Resultsmentioning

confidence: 99%