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Enhanced absorption of TiO.sub.2./sub. nanotubes by N-doping and CdS quantum dots sensitization: insight into the structure
- 1.0517358 - FZÚ 2020 RIV GB eng J - Článek v odborném periodiku
Bjelajac, A. - Petrovic, R. - Djokic, V. - Matolín, V. - Vondráček, Martin - Dembele, K. - Moldovan, S. - Ersen, O. - Socol, G. - Mihailescu, I. N. - Janackovic, D.
Enhanced absorption of TiO2 nanotubes by N-doping and CdS quantum dots sensitization: insight into the structure.
RSC Advances. Roč. 8, č. 61 (2018), s. 35073-35082. E-ISSN 2046-2069
Grant CEP: GA MŠMT(CZ) LG15050
Institucionální podpora: RVO:68378271
Klíčová slova: TiO2 nanotubes * CdS quantum dots * transmission electron microscopy * photoelectron spectroscopy
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.049, rok: 2018
Způsob publikování: Open access
Anodization of titanium film sputtered on fluorine doped tin oxide (FTO) glass was performed to obtain highly ordered 2 mm long and 60 nm wide TiO2 nanotubes. The titania films were annealed in ammonia atmosphere to enable the doping with N. The annealing did not affect the nanotubular morphology and the porosity remained open which is a very important requirement for further deposition of CdS quantum dots. The analysis done by transmission electron microscopy (TEM) has shown that the N-doped nanotubes have a smaller interplanar distance as compared to the undoped ones, whose interplanar distance corresponded to anatase phase. This difference was attributed to the N doping and the Sn migration from the substrate, as demonstrated by energy dispersive spectroscopy (EDS) combined with electron energy loss spectroscopy (EELS).
Trvalý link: http://hdl.handle.net/11104/0302680
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