Performance of phototronically activated chitosan electrolyte in rare-earth doped Bi2Ti2O7 nanostructure based DSSC

Nanocomposite Photoanodes Consisting of p-NiO/n-ZnO Heterojunction and Carbon Quantum Dot Additive for Dye-Sensitized Solar Cells

“…Fundamentally, n-ZnO is an electron-rich semiconductor and p-NiO is a hole-rich semiconductor. When two semiconductors are combined without irradiation of light, the high concentration gradient of the charge carrier happens at the heterojunction boundary, resulting in current diffusing through the heterojunction and charge dissociation (positive donor ion in n-ZnO and negative acceptor ion in p-NiO). − The carriers (electrons and holes) continue to diffuse all the way for the Fermi energy ( E F ) to be equalized in both semiconductors, as shown in Scheme b. A built-in electric field is directed from n-ZnO to p-NiO through the junction and then bends a band occurred at the heterojunction boundary.…”

“…Therefore, the PCE (3.41%) of the nanocomposite electrode of ZnO and NiO­(8 wt %) was improved 1.58 times of that (2.16%) of the ZnO-based DSSC. However, because the hole mobility was slower than the electron mobility, the higher amount of NiO doped in ZnO was not effective for the enhancement of charge separation . Thus, an excess amount (higher than 8 wt %) of NiO doped in ZnO will result in less charge separation and the higher recombination process.…”

Advances on Dye-Sensitized Solar Cells (DSSCs) Nanostructures and Natural Colorants: A Review

“…Table 6 shows articles concerning nanostructures. Contrasting the idea that there are other functional elements in DSSCs besides TiO 2 , the use of Bi 2 Ti 2 O 7 (BTO) nanoparticles is presented in the paper [1], showing an efficiency of 3.88%. This research aimed to improve the energy conversion efficiency of the piezophoto-activated chitosan-based electrolyte for BTO nanoparticles doped with rare and pristine earth.…”

“…The history of sensitized cells began with the pioneering work of Brian O'Regan and Michael Grätzel, on the promising applications of nanosized TiO 2 porous film electrodes in dye-sensitized solar cells (DSSC); these devices convert solar energy into electricity through the photoelectric effect [1]. The first devices worked with ruthenium-based dyes and their efficiencies were around 10% [2].…”

Electrocatalytic and structural properties and computational calculation of PAN-EC-PC-TPAI-I2gel polymer electrolytes for dye sensitized solar cell application

“…8 Some of the well known polymers are polyacrylonitrile (PAN), [9][10][11][12] polyethylene oxide (PEO), 13 polyethylene glycol (PEG), 14,15 poly(methyl methacrylate) (PMMA), 16,17 poly(ethylene glycol) methyl ether methacrylate (PEGMA), 18 poly(vinyl chloride) (PVC), 19 poly(vinylidene uoride) (PVdF) 20 and poly(vinylidene uoride-co-hexauoropropylene) (PVdF-HFP). 21,22 Until now, polysaccharides and modied polysaccharides based materials were in reality for their superior ionic conductivity at room temperature, which includes, for example, chitosan, 23,24 cellulose 25 and carrageenan. 26 Recently, Di Noto et al reported another two main kinds of hybrid inorganic-organic PEs that are monophase and multi-phase PEs.…”