Optical and magnetic properties of elliptical hematite (α-Fe2O3) nanoparticles coated with uniform continuous layers of silica of different thickness

Jen Bin Shi; Chia-Wei Lee; Jhe Wei Guo; Min Jung Cheng; Chien Wu; Chih Jung Chen; Cheng Yu Chen; Ya Ting Lin; Chung Chieh Chang

doi:10.1016/j.matlet.2007.04.045

Optical and magnetic properties of elliptical hematite (α-Fe₂O₃) nanoparticles coated with uniform continuous layers of silica of different thickness

Jen Bin Shi
, Chia-Wei Lee
, Jhe Wei Guo
, Min Jung Cheng
, Chien Wu
, Chih Jung Chen
, Cheng Yu Chen
, Ya Ting Lin
, Chung Chieh Chang

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

29 Citations (Scopus)

Abstract

Elliptical-type α-Fe₂O₃ nanoparticles with/without silica shell have been prepared. The core particles were coated with uniform continuous layers of silica of two different thicknesses by hydrolysis of TEOS. The obtained HCP structure elliptical α-Fe₂O₃ nanoparticles with ∼ 240 nm length and 100 nm width is polycrystalline in nature. The thicknesses of SiO₂ shell coated on α-Fe₂O₃ are about 55 and 30 nm, respectively. The optical and magnetic properties of these nanoparticles have been investigated.

Original language	English
Pages (from-to)	5268-5270
Number of pages	3
Journal	Materials Letters
Volume	61
Issue number	30
DOIs	https://doi.org/10.1016/j.matlet.2007.04.045
Publication status	Published - Dec 2007
Externally published	Yes

Keywords

Elliptical α-FeO nanoparticles
Magnetic materials
Nanomaterials
Optical properties

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2007.04.045

Cite this

@article{981ce35b9e6d4ebc83c79af3cb0c1c7e,

title = "Optical and magnetic properties of elliptical hematite (α-Fe2O3) nanoparticles coated with uniform continuous layers of silica of different thickness",

abstract = "Elliptical-type α-Fe2O3 nanoparticles with/without silica shell have been prepared. The core particles were coated with uniform continuous layers of silica of two different thicknesses by hydrolysis of TEOS. The obtained HCP structure elliptical α-Fe2O3 nanoparticles with ∼ 240 nm length and 100 nm width is polycrystalline in nature. The thicknesses of SiO2 shell coated on α-Fe2O3 are about 55 and 30 nm, respectively. The optical and magnetic properties of these nanoparticles have been investigated.",

keywords = "Elliptical α-FeO nanoparticles, Magnetic materials, Nanomaterials, Optical properties",

author = "Shi, \{Jen Bin\} and Chia-Wei Lee and Guo, \{Jhe Wei\} and Cheng, \{Min Jung\} and Chien Wu and Chen, \{Chih Jung\} and Chen, \{Cheng Yu\} and Lin, \{Ya Ting\} and Chang, \{Chung Chieh\}",

note = "Funding Information: The research was supported by the National Science Council of R.O.C. under grant Nos. NSC94-2112-M-035-004 and NSC95-2112-M-035-003. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2007",

month = dec,

doi = "10.1016/j.matlet.2007.04.045",

language = "English",

volume = "61",

pages = "5268--5270",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "30",

}

TY - JOUR

T1 - Optical and magnetic properties of elliptical hematite (α-Fe2O3) nanoparticles coated with uniform continuous layers of silica of different thickness

AU - Shi, Jen Bin

AU - Lee, Chia-Wei

AU - Guo, Jhe Wei

AU - Cheng, Min Jung

AU - Wu, Chien

AU - Chen, Chih Jung

AU - Chen, Cheng Yu

AU - Lin, Ya Ting

AU - Chang, Chung Chieh

N1 - Funding Information: The research was supported by the National Science Council of R.O.C. under grant Nos. NSC94-2112-M-035-004 and NSC95-2112-M-035-003. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2007/12

Y1 - 2007/12

N2 - Elliptical-type α-Fe2O3 nanoparticles with/without silica shell have been prepared. The core particles were coated with uniform continuous layers of silica of two different thicknesses by hydrolysis of TEOS. The obtained HCP structure elliptical α-Fe2O3 nanoparticles with ∼ 240 nm length and 100 nm width is polycrystalline in nature. The thicknesses of SiO2 shell coated on α-Fe2O3 are about 55 and 30 nm, respectively. The optical and magnetic properties of these nanoparticles have been investigated.

AB - Elliptical-type α-Fe2O3 nanoparticles with/without silica shell have been prepared. The core particles were coated with uniform continuous layers of silica of two different thicknesses by hydrolysis of TEOS. The obtained HCP structure elliptical α-Fe2O3 nanoparticles with ∼ 240 nm length and 100 nm width is polycrystalline in nature. The thicknesses of SiO2 shell coated on α-Fe2O3 are about 55 and 30 nm, respectively. The optical and magnetic properties of these nanoparticles have been investigated.

KW - Elliptical α-FeO nanoparticles

KW - Magnetic materials

KW - Nanomaterials

KW - Optical properties

UR - https://www.scopus.com/pages/publications/35448972119

UR - https://www.scopus.com/pages/publications/35448972119#tab=citedBy

U2 - 10.1016/j.matlet.2007.04.045

DO - 10.1016/j.matlet.2007.04.045

M3 - Article

AN - SCOPUS:35448972119

SN - 0167-577X

VL - 61

SP - 5268

EP - 5270

JO - Materials Letters

JF - Materials Letters

IS - 30

ER -