A rapid and scalable strategy to high quality inverse opal tin dioxide porous films

Abstract

High quality inverse opal SnO 2 films with a large area of more than 10 cm 2 were prepared by the doctor-blading technique combined with a new liquid phase deposition. This method is controllable, time saving and suitable for different substrates, and exhibits potential for applications in device fabrication.Scheme 1 Preparation procedure and schedule of inverse opal SnO 2 porous films.

Top-down fabrication of fluorine-doped tin oxide nanopillar substrates for solar water splitting

“…16 Although these methods produces high quality lms of low resistance and high optical transmittance, the low roughness of the coatings produced is not ideal for catalysis applications. In contrast, wet-chemical methods such as sol-gel or spray pyrolysis have been used to produce FTO electrodes of high surface area, including nanoparticles, 17,18 templated inverse opals, 19,20 and nanowires. [21][22][23] Although these structures have demonstrated improved performance over planar samples for DSSC and PEC devices, wet-chemical synthesis routes generally lead to less conductive and less stable TCOs than those synthesized commercially by means of the low-pressure, gas-phase synthesis.…”

CdS/CdSe Co-Sensitized Solar Cells Based on a New SnO2 Photoanode with a Three-Dimensionally Interconnected Ordered Porous Structure

“…SnO 2 inverse opal electrodes were prepared according to our previous work with a slight modification. 20 Briefly, monodisperse polystyrene (PS) microspheres (285 nm diameter) were synthesized by emulsifier-free emulsion polymerization then dispersed in ethanol/water mixture (5: 2 v/v) to afford the PS colloidal suspension with a concentration of 10 vol %. The PS opal templates on FTO glass were prepared by using doctorblading technique and the above PS colloidal suspension.…”

“…SnO 2 was filled into the templates by using our newly developed liquid-phase deposition (LPD) method in which 0.1 M SnF 2 aqueous solution and lab-made CaO 2 •8H 2 O were adopted at 60 °C for 15 min. 20 The PS templates were removed by calcination at 450 °C for 1 h, leaving behind io-SnO 2 electrodes. Finally, the io-SnO 2 electrodes were immersed in 40 mM TiCl 4 aqueous solution at 70 °C for 40 min and then calcinated at 500 °C for 30 min.…”

Enhancing refractive index sensing capability with hybrid plasmonic–photonic absorbers

“…Recently, extensive investigations have been conducted to develop nanoplasmonic sensors based on the extraordinary optical transmission (EOT) through periodic nanoaperture arrays in metallic films [30][31][32][33][34] or metallic film coated colloidal crystals (M-CCs). [35][36][37][38] M-CCs have novel fabrication features due to the simple colloidal self-assembly method [39][40][41] and the standard metal film deposition technique, which have been proposed to be utilized as alternative platforms for the plasmon sensing scheme. For instance, an impressive plasmon sensing based on large-area M-CCs was achieved in the visible spectrum.…”

“…3(a), a uniform colorimetric response on a largearea sample was achieved based on these well-developed and standard techniques, which indicates the feasibility of fabrication with low-cost and high-reproducibility for this type of absorber. [36][37][38][39] Cross-view scanning electron microscopy (SEM) image is presented in Fig. 3(b), which shows that the M-CC was uniformly packed on the flat Au film.…”