Comparative study on the interactions of sulfide and iodine mediators with a dye in p-type dye-sensitized solar cells

Molecular self-assembly of 1D linear and 2D T-shape polyiodide arrangements in two organic ammonium triiodide salts: supramolecular structures and density functional theory-based optical properties

“…The reaction among hydroiodic acid, 4-dimethylaminopyridine (for 1)/or tetraethylammonium iodide (for 2) in the presence of antimony(III) iodide resulted in the formation of crystals of C 7 -H 11 N 2 2). They were grown at room temperature within two long narrow and straight glass tubes (Scheme 1), following a modified layered-solution synthesis method previously reported by Mitzi.…”

“…Such salts have found many applications over the years as evidenced by several recent review articles. 1 Organic iodide salts are used as electrolytes and redox mediators for dye sensitized solar cells, 2,3 anions of ionic liquids, 4 energy storage agents (light-induced formation of I–I bonds), 5 charge-transfer and mixed-valence salts 6 proton sponges, 7 in electrocatalytic reduction of triiodide, 8 lithium-iodide batteries, 9 lithium–sulfur batteries, 10 and supercapacitors. 11 Iodine species are also considered as dopants of polymers and graphene.…”

Importance of Electron Mediator Transparency: Photocatalytic Hydrogen Production from Polyoxometalate using Dye‐double‐layered Photocatalysts

“…[11][12][13][14][15] From the viewpoint of electron transfer in Zscheme water-splitting photocatalysis, the surface modification of DSPs is an interesting and efficient method to control the electron transfer at the photocatalyst-mediator interface. [16][17][18][19][20] In fact, several state-of-the-art DSPs have been reported to produce H 2 effectively in the presence of a redox-reversible electron mediator (e. g., I À and [Co(bpy) 3 ] 2 + ) as the electron source for H 2 production. [21][22][23][24][25][26][27][28][29][30][31][32][33] Maeda et al recently reported that the H 2 evolution activity of a DSP composed of a Ptintercalated HCa 2 Nb 3 O 10 nanosheet and Ru II dye was significantly improved by surface modification with both amorphous Al 2 O 3 and poly(styrenesulfonate) polymer, to achieve a remarkably high apparent quantum yield (AQY = 4.1 % at 420 nm).…”