摘要:
Embodiments of a method for synthesizing aqueous precursors comprising Hf 4+ or Zr 4+ cations, peroxide, and a monoprotic acid are disclosed. The aqueous precursors are suitable for making HfO 2 and ZrO 2 thin films, which subsequently can be patterned. The disclosed thin films are dense and continuous, with a surface roughness of ≤ 0.5 nm and a refractive index of 1.85-2.0 at λ = 550 nm. Some embodiments of the disclosed thin films have a leakage-current density ≤ 20 nA/cm 2 at 1 MV/cm, with a dielectric breakdown ≥ 3 MV/cm. The thin films can be patterned with radiation to form dense lines and space patterns.
摘要:
Embodiments of a method for synthesizing aqueous precursors comprising Hf4+ or Zr4+ cations, peroxide, and a monoprotic acid are disclosed. The aqueous precursors are suitable for making HfO2 and ZrO2 thin films, which subsequently can be patterned. The disclosed thin films are dense and continuous, with a surface roughness of = 0.5 nm and a refractive index of 1.85-2.0 at ? = 550 nm. Some embodiments of the disclosed thin films have a leakage-current density = 20 nA/cm2 at 1 MV/cm, with a dielectric breakdown = 3 MV/cm. The thin films can be patterned with radiation to form dense lines and space patterns.