| Автор | Gogova, D. |
| Автор | Gesheva, K. |
| Автор | Kakanakova-Georgieva, A. |
| Автор | Surtchev, M. |
| Дата выпуска | 2000 |
| dc.description | Thin amorphous and polycrystalline tungsten oxide films have been prepared by Chemical Vapor Deposition (CVD) from metallorganic precursor − tungsten hexacarbonyl − at atmospheric pressure. The dependence of the composition and the structure of tungsten oxide films on the technological conditions has been investigated by XPS, XRD, DTA-TGA and Raman spectroscopy. As a result it has been established that: at high values of the flow-rates of the reaction gases amorphous films of very low density have been obtained; in the XPS spectra of the understoichiometric WO<sub>3−y </sub> (0 < y < 0.3) films besides W<sup>6+</sup>, also W<sup>5+</sup> and W<sup>4+</sup> states have been observed. First to observe in the Raman spectra of amorphous CVD-WO<sub>3</sub> films is the band at ~ 950 cm<sup>−1</sup>, characteristic for terminal W<sup>6+</sup> = O bonds in result of the presence of structural water. The existence of structural water in the amorphous material has been established by thermal analyze, also. |
| Формат | application.pdf |
| Издатель | EDP Sciences |
| Копирайт | © EDP Sciences, 2000 |
| Название | Investigation of the structure of tungsten oxide films obtained by chemical vapor deposition |
| Тип | research-article |
| DOI | 10.1051/epjap:2000159 |
| Electronic ISSN | 1286-0050 |
| Print ISSN | 1286-0042 |
| Журнал | The European Physical Journal Applied Physics |
| Том | 11 |
| Первая страница | 167 |
| Последняя страница | 174 |
| Аффилиация | Gogova D.; Central Laboratory for Solar Energy and New Energy Sources at the Bulgarian Academy of Sciences, 72 Tzarigradsko shose Blvd., 1784 Sofia, Bulgaria |
| Аффилиация | Gesheva K.; Central Laboratory for Solar Energy and New Energy Sources at the Bulgarian Academy of Sciences, 72 Tzarigradsko shose Blvd., 1784 Sofia, Bulgaria |
| Аффилиация | Kakanakova-Georgieva A.; Linköping University, Department of Physics and Measurement Technology, Material Science Division, S-581 83 Linköping, Sweden |
| Аффилиация | Surtchev M.; Sofia University, Department of Physics, 5 James Boucher Blvd., Sofia, Bulgaria |
| Выпуск | 3 |
