Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optical properties of nanocrystalline ceria

Not Accessible

Your library or personal account may give you access

Abstract

We believe that, for the first time, the UV-visible optical reflectivity of nanocrystalline ceria with various particle sizes has been measured, and their optical absorption characteristics have been studied by Kramers–Kronig transformation. The wide absorption band in the 200–480-nm range consisted of two narrow bands. This wide band was designated as the charge transfer of O2p–Ce4f while both narrow bands, which overlapped in this wide band, were due to the well-known 2 F 5/22 F 7/2 spin-orbit splitting of the Ce 4f 1 state. With a decrease in the particle sizes of the samples, the bandwidth expanded distinctly and a red shift in the wide band was observed. On the other hand, the band gap between the narrow bands showed a remarkable increase. All of these phenomena resulted from the effects of quantum size and the interface of nanostructured materials.

© 1997 Optical Society of America

Full Article  |  PDF Article
More Like This
Effect of non-stoichiometry on optical, radiative, and thermal characteristics of ceria undergoing reduction

Vincent M. Wheeler, José I. Zapata, Peter B. Kreider, and Wojciech Lipiński
Opt. Express 26(10) A360-A373 (2018)

Nonlinear optical properties of nanocrystalline diamond

F. Trojánek, K. Žídek, B. Dzurňák, M. Kozák, and P. Malý
Opt. Express 18(2) 1349-1357 (2010)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved