Enveloping porphyrins for efficient dye-sensitized solar cells

Trifunctional TiO2 Nanoparticles with Exposed {001} Facets as Additives in Cobalt‐Based Porphyrin‐Sensitized Solar Cells

“…[ 1 ] In addition, porphyrin sensitizers with steric hindrance, such as an ortho octyloxy phenyl ring on the meso position of the porphyrin ring, were molecularly designed to effectively restrain interfacial recombination. [ 12 ] Finally, to overcome the drawback of ionic diffusion, Heiniger et al [ 13 ] and Kim and co-workers [ 14 ] manipulated the pore sizes and porosities of TiO 2 fi lms by fabricating photoanodes by using large TiO 2 beads. Moreover, Pham et al [ 15 ] fabricated macropores in mesoporous TiO 2 fi lms by using polystyrene templates during TiO 2 fi lming.…”

Highly improved performance of ZnII tetraarylporphyrinates in DSSCs by the presence of octyloxy chains in the aryl rings

“…14 Despite the interesting light-conversion efficiencies, which were very recently displayed by this series of meso push-pull Zn II diarylporphyrinates, with or without co-sensitizer, 15-17 a multistep synthesis is required reducing overall yields; 6,[10][11][12]14,18 this also applies to basic porphyrinic ring synthesis. Moreover, they can be functionalized in b-pyrrolic position by relatively few synthetic steps, 23,24 and these porphyrinic dyes may present light-conversion efficiencies of up to 7.1%.…”

Synthesis, characterization and ab initio investigation of a panchromatic ullazine–porphyrin photosensitizer for dye-sensitized solar cells

“…[6][7][8][9][10][11][12][13] All of these dyes exhibited moderate to high performance with iodide/triiodide redox electrolytes. However, a common feature of all such dyes with p-extended donors possess very similar absorbance features, exhibiting a decit in green light harvesting ability ($550 nm), due to the poor absorption between characteristic porphyrinic B-(Soret) and Qbands.…”

“…The dye LD14-C8 (ref. 7) was employed as a reference compound to enable comparison to typical porphyrin dyes possessing an acetylene linked 4-dimethylaminophenyl donor and ethynylbenzoic acid acceptor. SM63 was characterized by 1 H and 13 C NMR spectroscopy and HRMS (ESI †).…”