Improved carrier transport in Mn:ZnSe quantum dots sensitized La-doped nano-TiO2 thin film |
SEM images of the mesoporous La-doped nano-TiO2 thin film before sensitized (a) and after sensitized (b) by the Mn-doped ZnSe QDs. The inset in (a) gives the thickness of the nano-TiO2 thin film with 3 layers. Film thicknesses were recorded by XP-2 Stylus Profilometer (USA). |
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