Gradient Annealing as a New Strategy to Fabricate Gradient Nanoparticle Array on Microwires

Chen, Anqi1; Lv, You1; Wu, Yanyan1; Zhu, Yuan1,2

2022-06-20

10.1186/s11671-022-03698-0

Nanoscale Research Letters   Impact Factor & Quartile

1931-7573

1556-276X

Creating gradients of nanostructure on the surface has found broad applications such as enhanced optical spectroscopy, optical storage of information, and broadband solar energy harvesting. Here, a facile strategy is presented for fabricating gradient nanoparticle arrays with tunable size. It takes a ZnO:Ga microwire as the starting material, and the Ga3+ doping gradient along the microwire is induced by the high voltage applied. Such a doping gradient facilitates the formation of a temperature gradient in a Joule heating process. And this temperature gradient produced by this technique can be as high as 800 degrees C/mm, which could be later used for gradient annealing of thin metal films. After annealing, the thin metal films turn to gradient nanoparticle arrays. The obtained gradient nanoparticle arrays are confirmed effective in multi-wavelength surface enhanced Raman scattering enhancement.

Microwire Doping gradient Temperature gradient Gradient nanoparticle array Surface enhanced Raman scattering

SCI ; EI

English

First ; Corresponding

National Natural Science Foundation of China[51872132,52122607,52002208,"U20A20241","K21799102"]

Science & Technology - Other Topics ; Materials Science ; Physics

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000813734400001

SPRINGER

20222512253470

Annealing ; Energy harvesting ; Fabrication ; II-VI semiconductors ; Metal nanoparticles ; Metallic films ; Raman scattering ; Semiconductor doping ; Solar energy ; Substrates ; Surface scattering ; Zinc oxide

Energy Conversion Issues:525.5 ; Heat Treatment Processes:537.1 ; Thermodynamics:641.1 ; Solar Energy and Phenomena:657.1 ; Semiconducting Materials:712.1 ; Light/Optics:741.1 ; Nanotechnology:761 ; Inorganic Compounds:804.2 ; Classical Physics; Quantum Theory; Relativity:931

Web of Science

1.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Sch Innovat & Entrepreneurship, Shenzhen 518055, Peoples R China

Chen, Anqi,Lv, You,Wu, Yanyan,et al. Gradient Annealing as a New Strategy to Fabricate Gradient Nanoparticle Array on Microwires[J]. Nanoscale Research Letters,2022,17(1).

Chen, Anqi,Lv, You,Wu, Yanyan,&Zhu, Yuan.(2022).Gradient Annealing as a New Strategy to Fabricate Gradient Nanoparticle Array on Microwires.Nanoscale Research Letters,17(1).

Chen, Anqi,et al."Gradient Annealing as a New Strategy to Fabricate Gradient Nanoparticle Array on Microwires".Nanoscale Research Letters 17.1(2022).