Hafnium oxide nanoparticles fabricated by femtosecond laser ablation in water

被引：12

作者：

Dhanunjaya, M. ^{[1
]}

Byram, Chandu ^{[2
]}

Vendamani, V. S. ^{[3
]}

Rao, S. Venugopal ^{[2
]}

Pathak, A. P. ^{[1
]}

Rao, S. V. S. Nageswara ^{[1
]}

机构：

[1] Univ Hyderabad, Sch Phys, Hyderabad 500046, Telangana, India

[2] Univ Hyderabad, ACRHEM, Hyderabad 500046, Telangana, India

[3] Inter Univ Accelerator Ctr, Aruna Asaf Ali Marg, New Delhi 110067, India

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2019年 / 125卷 / 01期

关键词：

OPTICAL-PROPERTIES; HFO2; NANOPARTICLES; LIQUID; MECHANISM; SILICON;

D O I：

10.1007/s00339-018-2366-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the fabrication of colloidal hafnia nanoparticles (NPs) and nanoribbons (NRs) in deionized water achieved by femtosecond laser ablation. The average size of NPs and NRs varied in the range 13.5-18.0nm and 10-20nm, respectively, with varying input laser energy. At lower energies, the NPs were observed to be in pure monoclinic phase of HfO2. However, at higher input energies, interestingly, both monoclinic and hexagonal phases corresponding to HfO2 and Hf6O were observed. Hf6O is otherwise expected only at high pressures.

引用

页数：7

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