First-principles theory of coloration of WO$_3$ upon charge insertion
| dc.creator | Xue, Yu | |
| dc.creator | Zhang, Yong | |
| dc.creator | Zhang, Peihong | |
| dc.date | 2009-01-27 | |
| dc.date.accessioned | 2026-07-07T12:34:48Z | |
| dc.date.available | 2026-07-07T12:34:48Z | |
| dc.description | We report first-principles investigations of the coloration of WO$_3$ upon charge insertion, using sodium tungsten bronze (Na$_x$WO$_3$) as a model system. Our results explain well the systematic color change of Na$_x$WO$_3$ from dark blue to violet, red-orange, and finally to golden-yellow as sodium concentration $x$ increases from 0.3 to unity. Proper accounts for both the interband and the intraband contributions to the optical response are found to be very important for a detailed understanding of the coloration mechanism in this system. | |
| dc.description | 11 pages | |
| dc.identifier | https://arxiv.org/abs/0901.4167 | |
| dc.identifier | http://arxiv.org/abs/0901.4167 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/217566 | |
| dc.subject | Materials Science | |
| dc.title | First-principles theory of coloration of WO$_3$ upon charge insertion | |
| dc.type | text |