Synthesis of TiO₂hollow spheres using titanium tetraisopropoxide: fabrication of high efficiency dye sensitized solar cells with photoanodes of different nanocrystalline TiO₂sub-layers

Improved electrochemical and photovoltaic performance of dye sensitized solar cells based on PEO/PVDF–HFP/silane modified TiO2electrolytes and MWCNT/Nafion®counter electrode

“…1 The typical structure of a DSSC consists of two sandwiched conducting glass plates; one is called a photo anode and is coated with a wide band gap and mesoporous semiconducting layer of nanoparticles with a selfassembled monolayer of chemisorbed dye molecules lled with an electrolyte for dye regeneration, and another glass plate coated with Pt, carbon, etc., is used as a counter electrode. 2 Remarkable improvements have been achieved in the performance and the maximum efficiency of DSSCs; about 11% has been reported by using liquid electrolyte and ruthenium dyes. 3 However, the major drawbacks of these solar cells are leakage of solvent, high temperature instability, dye desorption, and electrode corrosion which causes the sealing and performance degradation of DSSCs.…”

Selective simultaneous determination of levodopa and acetaminophen in the presence of ascorbic acid using a novel TiO2hollow sphere/multi-walled carbon nanotube/poly-aspartic acid composite modified carbon paste electrode

“…To carry out the LPD process, the mixture was stirred at room temperature for 24 h. The CS/TiO 2 precipitate was centrifuged and washed with ethanol and water and dried at 40 C for 10 h. Finally, the precipitate was heated at 450 C to remove the carbon templates and form the pure TiO 2 structures. 49 2.3. Instrumentation P-ASP/TOHS/MWCNT/CPE as the working electrode, Ag/AgCl 3 M KCl as the reference electrode and platinum wire as an auxiliary electrode were used for voltammetric measurements.…”

Facile modified cyclic electrophoretic deposition of hydrothermally prepared TiO2 nanocrystals and their application in dye sensitized solar cells

“…The larger P90 TiO 2 nanoparticles could also create considerable light scattering and improve the energy conversion efficiency [62,93,94]. Nevertheless, the hydrothermally grown TiO 2 nanocrystals with sizes around 20 nm have been increasingly applied in the photoanode of DSCs in recent years [25,77,95]. The reason could be attributed to the higher surface area and higher dye loading of these nanocrystals which could increase the efficiency [50,96].…”