Blueshifts in the ultraviolet absorption spectra of cerium oxide nanocrystallites

被引：101
|
作者：
Tsunekawa, S [1 ]
Wang, JT
Kawazoe, Y
Kasuya, A
机构：
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
[3] Tohoku Univ, Interdisciplinary Res Ctr, Sendai, Miyagi 9808578, Japan
[4] Tohoku Univ, Adv Mat Lab, IMR, Sendai, Miyagi 980, Japan
来源：
JOURNAL OF APPLIED PHYSICS | 2003年 / 94卷 / 05期
关键词：
D O I：
10.1063/1.1600520
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Blueshifts in the ultraviolet absorption spectra have been observed in cerium oxide nanocrystallites. The mechanism of the absorption is a charge-transfer optical transition. The relationships among the blueshift, valence state of cerium ions, and the particle size are formulated. The blueshifts are well explained for diameters down to less than a few nanometers by the change in the electronic band structure. (C) 2003 American Institute of Physics.
引用
收藏
页码：3654 / 3656
页数：3
相关论文
共 50 条
12345