Abstract:
Method for dyeing a layer of a nanocrystalline material on a substrate using a liquid dye, comprising the successive steps of (i) providing said layer on a substrate, (ii) providing an apparatus for dyeing said layer, which apparatus comprises at least a supply container for the liquid dye, a closable substrate holder provided with at least one inlet and at least one outlet for a substrate provided with a layer of nanocrystalline material, and conduit and circulation means for causing the liquid dye to circulate through the supply container and the substrate holder, (iii) placing the substrate with said layer in the substrate holder and closing the substrate holder, and providing a liquid dye in the supply container, and (iv) causing the liquid dye from the supply container to circulate for a determined time through the substrate holder, and apparatus for performing this method.
Abstract:
Method for dyeing a layer of a nanocrystalline material on a substrate using a liquid dye, comprising the successive steps of (i) providing said layer on a substrate, (ii) providing an apparatus for dyeing said layer, which apparatus comprises at least a supply container for the liquid dye, a closable substrate holder provided with at least one inlet and at least one outlet for a substrate provided with a layer of nanocrystalline material, and conduit and circulation means for causing the liquid dye to circulate through the supply container and the substrate holder, (iii) placing the substrate with said layer in the substrate holder and closing the substrate holder, and providing a liquid dye in the supply container, and (iv) causing the liquid dye from the supply container to circulate for a determined time through the substrate holder, and apparatus for performing this method.
Abstract:
The counter-electrode (11) is releasably coupled to the work electrode (1), and both contain electrically conductive layers (2, 12) deposited on transparent substrates (4, 14). A dye-sensitized titania solar cell with a layered structure comprises a work electrode coupled to a counter-electrode via an electrolyte fluid. The work electrode comprises a first electrically conductive layer, a crystalline titania layer (3) on top of the conductive layer, and a dye-sensitized material deposited on top of the titania layer. The counter-electrode comprises a second electrically conductive layer with a catalyst material (16) deposited on top. At least one of the conductive layers is transparent and deposited on a transparent substrate. The titania layer is formed by drying and sintering a coating of paste material comprising titania powder, water, ethanol and acid. The counter-electrode is releasably coupled to the work electrode.