4.6 Article

Indium diffusion through high-k dielectrics in high-k/InP stacks

Journal

APPLIED PHYSICS LETTERS
Volume 103, Issue 6, Pages -

Publisher

AMER INST PHYSICS
DOI: 10.1063/1.4817932

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Funding

  1. National Science Foundation (NSF) under ECCS [0925844]
  2. Div Of Electrical, Commun & Cyber Sys
  3. Directorate For Engineering [0925844] Funding Source: National Science Foundation

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Evidence of indium diffusion through high-k dielectric (Al2O3 and HfO2) films grown on InP (100) by atomic layer deposition is observed by angle resolved X-ray photoelectron spectroscopy and low energy ion scattering spectroscopy. The analysis establishes that In-out diffusion occurs and results in the formation of a POx rich interface. (C) 2013 AIP Publishing LLC.

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