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Atomic Layer Deposition of SiO$_2$-GeO$_2$ multilayers

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 نشر من قبل Jordi Antoja-Lleonart
 تاريخ النشر 2020
  مجال البحث فيزياء
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Despite its interest for CMOS applications, Atomic Layer Deposition (ALD) of GeO$_{2}$ thin films, by itself or in combination with SiO$_{2}$, has not been widely investigated yet. Here we report the ALD growth of SiO$_{2}$/GeO$_{2}$ multilayers on Silicon substrates using a so far unreported Ge precursor. The characterization of multilayers with various periodicities reveals successful layer-by-layer growth with electron density contrast and absence of chemical intermixing, down to a periodicity of 2 atomic layers.

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