89 0

Optoelectronic properties of β-Fe2O3 hollow nanoparticles

Title
Optoelectronic properties of β-Fe2O3 hollow nanoparticles
Author
이재성
Keywords
hollow nanostructure; nanomaterials; beta-Fe2O3; band gap energy; surfaces; light reflection; BAND-GAP ENERGIES; THIN-FILMS; OPTICAL-PROPERTIES; SPRAY-PYROLYSIS; GAMMA-FE2O3; TIO2
Issue Date
2008-06
Publisher
ELSEVIER SCIENCE BV
Citation
MATERIALS LETTERS, v. 62, No. 17-18, Page. 2664-2666
Abstract
The effect of hollow structure on the optoelectronic properties of β-Fe2O3 hollow nanoparticles (HNPs) was determined. Spectrophotometry showed that the optical transmittance of the β-Fe2O3 HNPs was less than 40% in the visible-light region. This opaqueness was suggested to be an optical characteristic, commonly found in the authors' previous studies of TiO2 and δ-Al2O3 HNPs. In addition, β-Fe2O3 HNPs had a band gap (1.86 eV) between amorphous (1.73 eV) and polycrystalline (1.97 eV) β-Fe2O3 thin films, which was a 5–7 nm thick shell that embraced an intermediate volume of the crystal phase, in-between the two thin films.
URI
https://www.sciencedirect.com/science/article/pii/S0167577X08000360https://repository.hanyang.ac.kr/handle/20.500.11754/80526
ISSN
0167-577X
DOI
10.1016/j.matlet.2008.01.008
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE