Microstructure, luminescence, and dielectric properties of microwave-sintered Ce:LuAG nano-ceramics

S. Arun Kumar; K. Subalakshmi; K. Ashok Kumar; Sanjay Sandhu; Lung Nhat Dang Quang; Atanu Jana; Ji Hoon Jeon; Hyun Seok Kim; Chinna Bathula

doi:10.1016/j.ceramint.2020.07.186

Microstructure, luminescence, and dielectric properties of microwave-sintered Ce:LuAG nano-ceramics

S. Arun Kumar, K. Subalakshmi, K. Ashok Kumar, Sanjay Sandhu, Lung Nhat Dang Quang, Atanu Jana, Ji Hoon Jeon, Hyun Seok Kim, Chinna Bathula

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Herein, phase pure and highly crystalline Ce:LuAG nano-ceramics were fabricated using a novel, ultra-fast microwave sintering approach. The influence of microwave sintering on the microstructural, photoluminescence, and dielectric characteristics of Ce:LuAG nano-ceramic powders was examined. Microwave-assisted sintering of Ce:LuAG nano-ceramic powders yielded high crystallinity, low lattice strain, and reduced grain size. The process also improved the sintering kinetics and enhanced the surface diffusion between the grains, resulting in enhanced luminescence and dielectric properties. The Cole-Cole impedance plots showed single semicircular arcs, indicating non-Debye relaxation and a high dielectric constant in the microwave-sintered Ce:LuAG nano-ceramic and highlighting its potential for use in optoelectronics.

Original language	English
Pages (from-to)	27092-27098
Number of pages	7
Journal	Ceramics International
Volume	46
Issue number	17
DOIs	https://doi.org/10.1016/j.ceramint.2020.07.186
State	Published - 1 Dec 2020

Keywords

Ce:LuAG
Ceramics
Impedance spectroscopy
Luminescence
Microwave sintering

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10.1016/j.ceramint.2020.07.186

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title = "Microstructure, luminescence, and dielectric properties of microwave-sintered Ce:LuAG nano-ceramics",

abstract = "Herein, phase pure and highly crystalline Ce:LuAG nano-ceramics were fabricated using a novel, ultra-fast microwave sintering approach. The influence of microwave sintering on the microstructural, photoluminescence, and dielectric characteristics of Ce:LuAG nano-ceramic powders was examined. Microwave-assisted sintering of Ce:LuAG nano-ceramic powders yielded high crystallinity, low lattice strain, and reduced grain size. The process also improved the sintering kinetics and enhanced the surface diffusion between the grains, resulting in enhanced luminescence and dielectric properties. The Cole-Cole impedance plots showed single semicircular arcs, indicating non-Debye relaxation and a high dielectric constant in the microwave-sintered Ce:LuAG nano-ceramic and highlighting its potential for use in optoelectronics.",

keywords = "Ce:LuAG, Ceramics, Impedance spectroscopy, Luminescence, Microwave sintering",

author = "{Arun Kumar}, S. and K. Subalakshmi and {Ashok Kumar}, K. and Sanjay Sandhu and {Dang Quang}, {Lung Nhat} and Atanu Jana and Jeon, {Ji Hoon} and Kim, {Hyun Seok} and Chinna Bathula",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd and Techna Group S.r.l.",

year = "2020",

month = dec,

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doi = "10.1016/j.ceramint.2020.07.186",

language = "English",

volume = "46",

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TY - JOUR

T1 - Microstructure, luminescence, and dielectric properties of microwave-sintered Ce:LuAG nano-ceramics

AU - Arun Kumar, S.

AU - Subalakshmi, K.

AU - Ashok Kumar, K.

AU - Sandhu, Sanjay

AU - Dang Quang, Lung Nhat

AU - Jana, Atanu

AU - Jeon, Ji Hoon

AU - Kim, Hyun Seok

AU - Bathula, Chinna

PY - 2020/12/1

Y1 - 2020/12/1

N2 - Herein, phase pure and highly crystalline Ce:LuAG nano-ceramics were fabricated using a novel, ultra-fast microwave sintering approach. The influence of microwave sintering on the microstructural, photoluminescence, and dielectric characteristics of Ce:LuAG nano-ceramic powders was examined. Microwave-assisted sintering of Ce:LuAG nano-ceramic powders yielded high crystallinity, low lattice strain, and reduced grain size. The process also improved the sintering kinetics and enhanced the surface diffusion between the grains, resulting in enhanced luminescence and dielectric properties. The Cole-Cole impedance plots showed single semicircular arcs, indicating non-Debye relaxation and a high dielectric constant in the microwave-sintered Ce:LuAG nano-ceramic and highlighting its potential for use in optoelectronics.

AB - Herein, phase pure and highly crystalline Ce:LuAG nano-ceramics were fabricated using a novel, ultra-fast microwave sintering approach. The influence of microwave sintering on the microstructural, photoluminescence, and dielectric characteristics of Ce:LuAG nano-ceramic powders was examined. Microwave-assisted sintering of Ce:LuAG nano-ceramic powders yielded high crystallinity, low lattice strain, and reduced grain size. The process also improved the sintering kinetics and enhanced the surface diffusion between the grains, resulting in enhanced luminescence and dielectric properties. The Cole-Cole impedance plots showed single semicircular arcs, indicating non-Debye relaxation and a high dielectric constant in the microwave-sintered Ce:LuAG nano-ceramic and highlighting its potential for use in optoelectronics.

KW - Ce:LuAG

KW - Ceramics

KW - Impedance spectroscopy

KW - Luminescence

KW - Microwave sintering

UR - http://www.scopus.com/inward/record.url?scp=85088216476&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2020.07.186

DO - 10.1016/j.ceramint.2020.07.186

M3 - Article

AN - SCOPUS:85088216476

SN - 0272-8842

VL - 46

SP - 27092

EP - 27098

JO - Ceramics International

JF - Ceramics International

IS - 17

ER -

Microstructure, luminescence, and dielectric properties of microwave-sintered Ce:LuAG nano-ceramics

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