1995
DOI: 10.1002/pssb.2221890209
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The Preparation of Amorphous SixGeyOz Alloy Films by Sputtering. Preparation Conditions, Chemical Composition, and Vibrational Properties

Abstract: Amorphous Si,Ge,O, alloy films with x = 0.17 to 0.60, y = 0.19 to 0.68, and z = 0.11 to 0.42 are deposited using reactive dc magnetron sputtering in an Ar/water atmosphere. The alloy concentrations are measured by secondary neutral mass spectrometry (SNMS). The oxygen content strongly decreases with decreasing silicon concentration. The dependence of the alloy composition on the target coverage with germanium pieces is investigated. IR transmission measurements in the range from 400 to 4000 cm-' show a predomi… Show more

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Cited by 6 publications
(2 citation statements)
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“…In contrast, the Ge K-edge XANES spectra of the oxygen excess sample B with a similar Si to Ge amount (x ≈ 1), GeSiO 2. 35 , show a different dependence on the annealing temperature and are presented in figure 1(b). The spectrum of the native sample exhibits a broad asymmetric shape with a maximum around 11 106.3 eV and a shoulder at the peak position of GeO 2 , typical for a sample with significant Ge sub-oxide content.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…In contrast, the Ge K-edge XANES spectra of the oxygen excess sample B with a similar Si to Ge amount (x ≈ 1), GeSiO 2. 35 , show a different dependence on the annealing temperature and are presented in figure 1(b). The spectrum of the native sample exhibits a broad asymmetric shape with a maximum around 11 106.3 eV and a shoulder at the peak position of GeO 2 , typical for a sample with significant Ge sub-oxide content.…”
Section: Resultsmentioning
confidence: 99%
“…SiO 2 embedded Ge NCs by thermal annealing, amorphous Ge x Si y O z (or in our case Ge x SiO y ) can serve as starting material, which can be synthesized e.g. using chemical vapor deposition [26,27], the sol-gel method [28][29][30], rf [31][32][33][34] or dc magnetron sputtering [35][36][37]. Here, the NC formation is strongly correlated to Ge-Si-O phase separation via GeO x reduction and SiO x oxidation during temperature treatment [38].…”
Section: Introductionmentioning
confidence: 99%