title: WO3 nanorolls self-assembled as thin films by hydrothermal synthesis.
abstract: We report a novel type of WO3 nanostructure, i.e. nanorolls obtained as a self-assembled thin film on a transparent conductive substrate. The mild conditions of preparation, avoiding the use of HCl, result in an eco-friendly hydrothermal method with reduced crystallization time. FESEM and HR-TEM show that WO3 nanocrystals are made of rolled nanoflakes with a telescope-like appearance at their tip. For their nano-porosity, electrochemical accessibility, good adhesion to substrates and the envisaged presence of nanocavities between the WO3 layers, these materials hold tremendous promise in nano-electronics, electrochromic devices, water photo-splitting cells, Li-ion batteries and nano-templated filters for UV radiation.
authors: GAME Lab, Dept. Applied Science and Technology - DISAT, Politecnico di Torino, Italy. simone.zanarini@polito.it silvia.bodoardo@polito.it.
authors: S
authors: S
authors: Vankova
authors: S
authors: S
authors: Zanarini
authors: J
authors: J
authors: Amici
authors: F
authors: F
authors: Cámara
authors: R
authors: R
authors: Arletti
authors: S
authors: S
authors: Bodoardo
authors: N
authors: N
authors: Penazzi