Local structural and optical properties of ZnO nanoparticles

Eun Suk Jeong; Hyo Jong Yu; Yong Jin Kim; Gyu Chul Yi; Yong Dae Choi; Sang Wook Han

doi:10.1166/jnn.2010.2334

Local structural and optical properties of ZnO nanoparticles

Eun Suk Jeong
, Hyo Jong Yu
, Yong Jin Kim
, Gyu Chul Yi
, Yong Dae Choi
, Sang Wook Han^*

^*Corresponding author for this work

Physics Education

Jeonbuk National University
Pohang University of Science and Technology
Seoul National University
Mokwon University

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

32 Scopus citations

Abstract

This study examined the local structural and optical properties of ZnO nanoparticles (NPs) with mean diameters of 4.5 and 70 nm using extended X-ray absorption fine structure (EXAFS) measurements at the Zn K edge and photoluminescence (PL) measurements. EXAFS revealed that the average bond length of atomic pairs in the NPs was shorter than that of the powder. Furthermore, a substantial amount of structural disorder existed in the NPs. From the PL measurements, we observed the direct band gap peak of 3.41 eV from the 70 nm ZnO NPs at low temperatures. This blue shift was related to the structural property changes

Original language	English
Pages (from-to)	3562-3565
Number of pages	4
Journal	Journal of nanoscience and nanotechnology
Volume	10
Issue number	5
DOIs	https://doi.org/10.1166/jnn.2010.2334
State	Published - 2010.05

Keywords

EXAFS
Nanoparticle
Photoluminescence
Quantum confinement
Structure
ZnO

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Engineering - Chemical
Chemistry
Physics & Astronomy
Biological Sciences

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10.1166/jnn.2010.2334

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@article{ed5f1615a08c4957a3139747689a8faa,

title = "Local structural and optical properties of ZnO nanoparticles",

abstract = "This study examined the local structural and optical properties of ZnO nanoparticles (NPs) with mean diameters of 4.5 and 70 nm using extended X-ray absorption fine structure (EXAFS) measurements at the Zn K edge and photoluminescence (PL) measurements. EXAFS revealed that the average bond length of atomic pairs in the NPs was shorter than that of the powder. Furthermore, a substantial amount of structural disorder existed in the NPs. From the PL measurements, we observed the direct band gap peak of 3.41 eV from the 70 nm ZnO NPs at low temperatures. This blue shift was related to the structural property changes",

keywords = "EXAFS, Nanoparticle, Photoluminescence, Quantum confinement, Structure, ZnO",

author = "Jeong, \{Eun Suk\} and Yu, \{Hyo Jong\} and Kim, \{Yong Jin\} and Yi, \{Gyu Chul\} and Choi, \{Yong Dae\} and Han, \{Sang Wook\}",

year = "2010",

month = may,

doi = "10.1166/jnn.2010.2334",

language = "English",

volume = "10",

pages = "3562--3565",

journal = "Journal of nanoscience and nanotechnology",

issn = "1533-4880",

number = "5",

}

TY - JOUR

T1 - Local structural and optical properties of ZnO nanoparticles

AU - Jeong, Eun Suk

AU - Yu, Hyo Jong

AU - Kim, Yong Jin

AU - Yi, Gyu Chul

AU - Choi, Yong Dae

AU - Han, Sang Wook

PY - 2010/5

Y1 - 2010/5

N2 - This study examined the local structural and optical properties of ZnO nanoparticles (NPs) with mean diameters of 4.5 and 70 nm using extended X-ray absorption fine structure (EXAFS) measurements at the Zn K edge and photoluminescence (PL) measurements. EXAFS revealed that the average bond length of atomic pairs in the NPs was shorter than that of the powder. Furthermore, a substantial amount of structural disorder existed in the NPs. From the PL measurements, we observed the direct band gap peak of 3.41 eV from the 70 nm ZnO NPs at low temperatures. This blue shift was related to the structural property changes

AB - This study examined the local structural and optical properties of ZnO nanoparticles (NPs) with mean diameters of 4.5 and 70 nm using extended X-ray absorption fine structure (EXAFS) measurements at the Zn K edge and photoluminescence (PL) measurements. EXAFS revealed that the average bond length of atomic pairs in the NPs was shorter than that of the powder. Furthermore, a substantial amount of structural disorder existed in the NPs. From the PL measurements, we observed the direct band gap peak of 3.41 eV from the 70 nm ZnO NPs at low temperatures. This blue shift was related to the structural property changes

KW - EXAFS

KW - Nanoparticle

KW - Photoluminescence

KW - Quantum confinement

KW - Structure

KW - ZnO

UR - https://www.scopus.com/pages/publications/77955001227

U2 - 10.1166/jnn.2010.2334

DO - 10.1166/jnn.2010.2334

M3 - Journal article

AN - SCOPUS:77955001227

SN - 1533-4880

VL - 10

SP - 3562

EP - 3565

JO - Journal of nanoscience and nanotechnology

JF - Journal of nanoscience and nanotechnology

IS - 5

ER -

Local structural and optical properties of ZnO nanoparticles

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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