| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1465255 | Ceramics International | 2009 | 4 Pages |
Abstract
A new layered oxysulfide La5Cu6O4S7, composed of anti-PbO-like [Cu2S2] slabs alternating with PbO-like [La10O8S2] slabs and exhibiting high p-type conductivity, was fabricated by solid-state reaction method using La2S3 and characterized for the first time. The compound exhibited optical band gap of 2.0 eV, p-type electrical conductivity of 2.17 S cm−1 at room temperature, and metallic-like conducting behavior in the range of 150–450 K. La5Cu6O4S7 has presented another new and feasible way in achieving high conductivity, only partly structure-distortion rather than acceptor-doping, for applicable p-type semiconductor.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Wu Libin, Liu Minling, Huang Fuqiang, Chen Lidong, Gao Xiangdong,