Identification of nickel silicide phases on a silicon surface from Raman spectra

Solodukha, V. A.; Turtsevich, A. S.; Solovyev, Ya. A.; Sarychev, O. E.; Гапоненко, С. В.; Milchanin, O.

doi:10.1007/s10812-013-9704-9

Cited by 5 publications

(2 citation statements)

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“…The NiC 3 asymmetric (9.7 meV) and symmetric (14.4 meV) deformation modes energies [20] are close to the sideband peaks of 10 and 12 meV of 865 nm ZPL. Quasilocalized vibration of 141 cm −1 (17.5 meV) assigned to Ni 2 Si atomic structure [21][22][23][24] does not contribute to vibronic sideband of the studied ZPL system. Vibrations in the 181-407 cm −1 range Figure 4: Raman spectrum of nanodiamond grain in the low frequency region excited by 785 nm diode laser.…”

Section: Resultsmentioning

confidence: 82%

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Nickel-Silicon Related Color Center Formed in Nanodiamond Grains under CVD Growth

Tóth

Himics

Koós

2015

Journal of Nanoscience

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Formation of optical centers in nanodiamond grains with narrow, near-infrared emission at room temperature is one of the most important challenges nowadays. Our aim was to form a metal-related color center through the CVD growth process of nanodiamond. Previously undocumented photoluminescence (PL) system with 865 nm zero-phonon line (ZPL) and 2 nm full width at half maximum (FWHM) was successfully created in nanodiamond grains. According to the detailed analysis of the spectral features of the ZPL and quasilocal modes of the vibronic sideband, a complex center containing Ni and Si atoms could be accounted for these PL features. The inclusion of Ni and Si impurity atoms in the complex optical center was strengthened by micro-Raman spectroscopy performed in the frequency range due to quasilocal vibrations of the vibronic sideband.

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Section: Resultsmentioning

confidence: 82%

“…are assigned to NiSi species [21][22][23][24], while the Raman peak of 427 cm −1 is related to Ni-C symmetric stretching mode [20]. Raman peak at 303 cm −1 is assigned to crystalline silicon wafer under the stress caused by the nanodiamond film [25].…”

Section: Resultsmentioning

confidence: 99%