Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1815774 | Physica B: Condensed Matter | 2007 | 9 Pages |
Abstract
We investigated the effect of intentional incorporation of sodium on the structural, optical and electrical properties of Cu-poor CuInS2 thin films. Samples having a low concentration of Na exhibit better crystallinity and a remarkable increase in electrical conductivity as well as photosensitivity, compared to the undoped films. Doping of Na results in an increase of the oxygen concentration, as judged by X-ray Photoelectron Spectroscopy. However, a larger concentration of sodium (greater than 0.3%) is found to deteriorate the film properties, but the sample is still better than the undoped sample.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Teny Theresa John, Tina Sebastian, C. Sudha Kartha, K.P. Vijayakumar, T. Abe, Y. Kashiwaba,