Near-infrared photoluminescence in titania:: Evidence for phonon-replica effect

被引：81

作者：

Montoncello, F

Carotta, MC

Cavicchi, B

Ferroni, M

Giberti, A

Guidi, V

Malagù, C

Martinelli, G

Meinardi, F

机构：

[1] Univ Ferrara, Dept Phys, I-44100 Ferrara, Italy

[2] INFM, I-44100 Ferrara, Italy

[3] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy

[4] Dept Mat Sci, I-20125 Milan, Italy

[5] INFM, I-20125 Milan, Italy

来源：

JOURNAL OF APPLIED PHYSICS | 2003年 / 94卷 / 03期

关键词：

D O I：

10.1063/1.1586961

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The photoluminescence of rutile and anatase TiO2 has been investigated in the range of 360-890 nm at several temperatures. An unexpected intense near-infrared (1.53 eV) photoluminescence band was recorded for both phases. At low temperatures, the resulting bands form a substructure of equally spaced peaks irrespective of the phase. The spectra were interpreted in the framework of the single-configuration-coordinate model as the phonon-replica effect, originating from ionization of oxygen vacancies. (C) 2003 American Institute of Physics.

引用

页码：1501 / 1505

页数：5

共 37 条

[1] THERMALLY STIMULATED CURRENTS AND LUMINESCENCE IN RUTILE (TIO2) [J].