Structure and optical properties of nanocrystalline hafnium oxide thin films

M Vargas, NR Murphy, CV Ramana - Optical Materials, 2014 - Elsevier
Hafnium oxide (HfO 2) films were grown by sputter-deposition by varying deposition
temperature (T s) in a wide range of 25–700° C. The deposited HfO 2 films were …

Novel synthesis of hafnium oxide nanoparticles by precipitation method and its characterization

A Ramadoss, K Krishnamoorthy, SJ Kim - Materials Research Bulletin, 2012 - Elsevier
Hafnium oxide nanoparticles (HfO2 NPs) have been successfully synthesized by means of a
novel precipitation method and were characterized by using X-ray diffraction (XRD), X-ray …

Low-temperature fabrication of an HfO2 passivation layer for amorphous indium–gallium–zinc oxide thin film transistors using a solution process

S Hong, SP Park, Y Kim, BH Kang, JW Na, HJ Kim - Scientific reports, 2017 - nature.com
We report low-temperature solution processing of hafnium oxide (HfO2) passivation layers
for amorphous indium–gallium–zinc oxide (a-IGZO) thin-film transistors (TFTs). At 150° C …

Influence of oxygen partial pressure on microstructure, optical properties, residual stress and laser induced damage threshold of amorphous HfO2 thin films

S Jena, RB Tokas, S Tripathi, KD Rao… - Journal of Alloys and …, 2019 - Elsevier
HfO 2 thin films were deposited by electron beam evaporation technique at different oxygen
(O 2) partial pressures. The films are characterized using x-ray diffraction, x-ray reflectivity …

High temperature annealing effects on spectral, microstructural and laser damage resistance properties of sputtered HfO2 and HfO2-SiO2 mixture-based UV mirrors

G Abromavičius, S Kičas, R Buzelis - Optical Materials, 2019 - Elsevier
Hafnium oxide is widely used as high refractive index material for making high power laser
coatings for UV spectral range. Thermal annealing is one of the most efficient post …

Influence of high energy ion irradiation on structural, morphological and optical properties of high-k dielectric hafnium oxide (HfO2) thin films grown by atomic layer …

R Kumar, V Chauhan, N Koratkar, S Kumar… - Journal of Alloys and …, 2020 - Elsevier
Modifications and resulting changes in various properties of nanocrystalline HfO 2 high-k
dielectric thin films with nominal thickness of 20 nm grown by atomic layer deposition …

Synthesis and characterization of HfO2 nanoparticles by sonochemical approach

A Ramadoss, SJ Kim - Journal of alloys and compounds, 2012 - Elsevier
Hafnium oxide (HfO2) nanoparticles (NPs) have been prepared by a simple sonochemical
method at room temperature. The as prepared NPs were characterized with X-ray diffraction …

Effects of O2 flux on structure, optical properties and hydrophobicity of highly emissive antireflective HfO2 thin films by magnetron sputtering

A Zahoor, C Xu, T Shahid, MA Anwar, Z Song - Vacuum, 2022 - Elsevier
We used magnetron sputtering to prepare high emissive HfO 2 thin films with thickness 300–
500 nm under different O 2 flux. A dense uniform HfO 2 thin film with a polycrystalline …

Influence of hydrogen annealing on the optoelectronic properties of WO3 thin films

M Saleem, MF Al-Kuhaili, SMA Durrani… - international journal of …, 2015 - Elsevier
The optoelectronic properties of WO 3 thin films were investigated after hydrogen treatment.
Thin films were deposited on heated substrates by the thermal evaporation and were …

Realization of Enhanced Long‐Term Visual Memory for Indium–Gallium–Zinc Oxide‐Based Optical Synaptic Transistor

D Kim, WK Min, HT Kim, J Chung… - Advanced Optical …, 2022 - Wiley Online Library
Amorphous indium–gallium–zinc oxide (IGZO)‐based optical synaptic transistor using
visible light as the signal that shows a clear difference between long‐term memory (LTM) …