Near-infrared absorbing unsymmetrical Zn(II) phthalocyanine for dye-sensitized solar cells
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Due to their high efficiencies and their potentially low production costs, dye-sensitized solar cells (DSSC) have attracted much attention during the last few years. The technology is based on a layer made of mesoscopic TiO2 film which significantly increa ...
Addn. of 4-tert-butylpyridine (4TBP) to redox electrolytes used in dye-sensitized TiO2 solar cells has a large effect on their performance. In an electrolyte contg. 0.7M LiI and 0.05M I2 in 3-methoxypropionitrile, addn. of 0.5M 4TBP gave an increase of the ...
Photoelectrochem. measurements have been performed on film electrodes consisting of linked nano-sized TiO2 colloids. The film thickness ranged from 1-40 μm. The film network was attached to a thin transparent conducting layer of SnO2 allowing for photogene ...
The transport and interfacial transfer of electrons in dye-sensitized solar cells utilizing the Co(dbbip)(2) (dbbip = 2,6-bis(l'-butylbenzimidazol-2'-yl)pyridine) redox couple as an alternative to the conventional I-3(-)/l(-) couple have been investigated ...
Dye-sensitized solar cells (DSCs) based on two novel carbazole dyes and a Br-/Br3- redox mediator in dry CH3CN solns. as electrolytes yielded a Voc of 1.156 V and a η value of 3.68% and a Voc of 0.939 V and a η value of 5.22% under simulated AM 1.5, resp. ...
Dye-sensitized solar cells (DSCs) have achieved impressive conversion efficiencies for solar energy of over 11% with an electrolyte that contains triiodide/iodide as a redox couple. Although triiodide/iodide redox couples work efficiently in DSCs, they suf ...
Methods for the prepn. and purifn. of new carboxylated 2,2'-bipyridine ligands, two of which contain the new anchoring functionality malonate, and a reliable method for the synthesis of the corresponding Ru(bpy)2(L)2 complexes are described. Their s ...
We employ time-dependent density functional theory to study the optical properties of a squaraine sensitized TiO2 system, as a model for the corresponding dye-sensitized solar cell. The all-organic squaraine dye is particularly promising for light absorpti ...
An org. redox couple (McMT-/BMT) was used in dye-sensitized solar cells. Based on a low-cost org. dye, TH305, an efficiency of 4.0% was achieved under simulated sunlight (100 mW/cm2). Photoelectrochem. measurements provided insight into the difference betw ...
A new method for the prepn. of nanostructured TiO2 films, based on the compression of a TiO2 powder is presented, and its relevance for the prodn. of dye-sensitized solar cells is discussed. By applying a pressure (>200 kg cm-2) on a film of TiO2 powder, a ...
