Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1812114 | Physica B: Condensed Matter | 2010 | 4 Pages |
Abstract
We report the structural and photoluminescence characteristics of a high energy Ar+-irradiated SrTiO3 single crystal. High resolution X-ray reciprocal space mapping, cross-section scanning electron microscopy and photoluminescence measurements suggest that thick amorphous and oxygen-deficient SrTiO3 layers are formed after irradiation. Due to the highly accelerated Ar+ (∼100 keV), electrical conductivity of the oxygen-deficient SrTiO3 layer seems to be highly reduced, which results in the absence of 440 nm (blue-light) emission at 300 K, and broad and weak 380 nm emission at 20 K.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
K.D. Sung, Ravi Kumar, Abhinav Pratap Singh, C.S. Kim, K.J. Yee, J.H. Jung,