Photoluminescence properties of sesquioxide doped ceria synthesized by modified sol-gel route

Manas Kumar Rath; Susant Kumar Acharya; Bok Hee Kim; Ki Tae Lee; Byung Guk Ahn

doi:10.1016/j.matlet.2011.01.004

Photoluminescence properties of sesquioxide doped ceria synthesized by modified sol-gel route

Manas Kumar Rath
, Susant Kumar Acharya
, Bok Hee Kim
, Ki Tae Lee
, Byung Guk Ahn

Electronic Materials Engineering

Jeonbuk National University

Research output: Contribution to journal › Journal article › peer-review

18 Scopus citations

Abstract

Highly crystalline and porous sesquioxide (Sm₂O₃, La₂O₃) doped ceria with different molar ratio is successfully synthesized by a simple modified sol-gel route. X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) are used to investigate their phase, microstructure and composition. XRD analysis confirmed the formation of highly crystalline cubic fluorite phase in all samples. The Raman spectroscopy revealed a single triple degenerated F _2g mode as the attestation of the oxygen vacancy in the doped and undoped samples. Strong photoluminescence lines due to interconfigurational transition and vacancy mediated transition were observed in doped CeO ₂. The oxygen vacancy induced luminescence of CeO₂ was strongly enhanced due to La doping. The effect of rare earth dopant on the photoluminescence properties has been studied in details.

Original language	English
Pages (from-to)	955-958
Number of pages	4
Journal	Materials Letters
Volume	65
Issue number	6
DOIs	https://doi.org/10.1016/j.matlet.2011.01.004
State	Published - 2011.03.31

Keywords

Crystal Structure
Electron microscopy
Luminescence
Sol-gel preparation
X-ray techniques

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Engineering - Mechanical
Physics & Astronomy

Access to Document

10.1016/j.matlet.2011.01.004

Cite this

@article{2c56347a1d8a4194b2b2d1fde5def235,

title = "Photoluminescence properties of sesquioxide doped ceria synthesized by modified sol-gel route",

abstract = "Highly crystalline and porous sesquioxide (Sm2O3, La2O3) doped ceria with different molar ratio is successfully synthesized by a simple modified sol-gel route. X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) are used to investigate their phase, microstructure and composition. XRD analysis confirmed the formation of highly crystalline cubic fluorite phase in all samples. The Raman spectroscopy revealed a single triple degenerated F 2g mode as the attestation of the oxygen vacancy in the doped and undoped samples. Strong photoluminescence lines due to interconfigurational transition and vacancy mediated transition were observed in doped CeO 2. The oxygen vacancy induced luminescence of CeO2 was strongly enhanced due to La doping. The effect of rare earth dopant on the photoluminescence properties has been studied in details.",

keywords = "Crystal Structure, Electron microscopy, Luminescence, Sol-gel preparation, X-ray techniques",

author = "Rath, \{Manas Kumar\} and Acharya, \{Susant Kumar\} and Kim, \{Bok Hee\} and Lee, \{Ki Tae\} and Ahn, \{Byung Guk\}",

year = "2011",

month = mar,

day = "31",

doi = "10.1016/j.matlet.2011.01.004",

language = "English",

volume = "65",

pages = "955--958",

journal = "Materials Letters",

issn = "0167-577X",

number = "6",

}

TY - JOUR

T1 - Photoluminescence properties of sesquioxide doped ceria synthesized by modified sol-gel route

AU - Rath, Manas Kumar

AU - Acharya, Susant Kumar

AU - Kim, Bok Hee

AU - Lee, Ki Tae

AU - Ahn, Byung Guk

PY - 2011/3/31

Y1 - 2011/3/31

N2 - Highly crystalline and porous sesquioxide (Sm2O3, La2O3) doped ceria with different molar ratio is successfully synthesized by a simple modified sol-gel route. X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) are used to investigate their phase, microstructure and composition. XRD analysis confirmed the formation of highly crystalline cubic fluorite phase in all samples. The Raman spectroscopy revealed a single triple degenerated F 2g mode as the attestation of the oxygen vacancy in the doped and undoped samples. Strong photoluminescence lines due to interconfigurational transition and vacancy mediated transition were observed in doped CeO 2. The oxygen vacancy induced luminescence of CeO2 was strongly enhanced due to La doping. The effect of rare earth dopant on the photoluminescence properties has been studied in details.

AB - Highly crystalline and porous sesquioxide (Sm2O3, La2O3) doped ceria with different molar ratio is successfully synthesized by a simple modified sol-gel route. X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) are used to investigate their phase, microstructure and composition. XRD analysis confirmed the formation of highly crystalline cubic fluorite phase in all samples. The Raman spectroscopy revealed a single triple degenerated F 2g mode as the attestation of the oxygen vacancy in the doped and undoped samples. Strong photoluminescence lines due to interconfigurational transition and vacancy mediated transition were observed in doped CeO 2. The oxygen vacancy induced luminescence of CeO2 was strongly enhanced due to La doping. The effect of rare earth dopant on the photoluminescence properties has been studied in details.

KW - Crystal Structure

KW - Electron microscopy

KW - Luminescence

KW - Sol-gel preparation

KW - X-ray techniques

UR - https://www.scopus.com/pages/publications/79251556838

U2 - 10.1016/j.matlet.2011.01.004

DO - 10.1016/j.matlet.2011.01.004

M3 - Journal article

AN - SCOPUS:79251556838

SN - 0167-577X

VL - 65

SP - 955

EP - 958

JO - Materials Letters

JF - Materials Letters

IS - 6

ER -

Photoluminescence properties of sesquioxide doped ceria synthesized by modified sol-gel route

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

Access to Document

Other files and links

Fingerprint

Cite this