(JP11074003-A)      Photoelectric (PE) material shown in the figure (a diagram of a solar cell) comprises a semiconductor (5) and an organic photosensitive dye (4) attached to the semiconductor, such that: (a) the dye has at least one interlocking groups and at least one monovalent (substituted) aliphatic or alicyclic hydrocarbon hydrophobic group; (b) if the dye contains a metal, the hydrophobic group is not directly bonded to the metal; and (c) the dye is not a transition metal complex comprising a ligand with a pyridyl group, a N,N,N'N'-tetra-(1-4C alkyl)ethylene diamine or a di-(1-4C alkyl glyoxime). Also claimed are: (1) a PE device comprising the above PE material and an electrode electrically connected to the material; (2) a photoelectric device, as shown in the figure, comprising a first conductive layer (6) bearing the above PE material (5, 4) bearing an electrolyte layer (3) and a second conductive layer (2) in contact with the electrolyte layer; (3) the use of the photosensitising dyes (I)-(X) below in manufacturing a PE material and (4) a method of manufacturing a PE material, optionally as above, comprising dissolving an organic photosensitive dye in a hydrophobic and/or aprotic solvent and attaching the dye to semiconductor by contacting it with the solution (i.e. by dipping).    USE -   In photoelectric devices, e.g. a photovoltaic cell, a solar cell, an optical switching device or a sensor.    ADVANTAGE -   The PE material has a relatively high PE conversion efficiency it can be made at low cost and it has superior durability. Applying the dye from a hydrophobic or aprotic solvent eliminates the problem of water or hydroxyl groups in a solvent, e.g. ethanol, deactivating active sites on the semiconductor surface and preventing dye adsorption. The dyes, which have not been used in this application previously, dissolve readily in an organic solvent.    (US6043428-A)      Photoelectric (PE) material shown in the figure (a diagram of a solar cell) comprises a semiconductor (5) and an organic photosensitive dye (4) attached to the semiconductor, such that: (a) the dye has at least one interlocking groups and at least one monovalent (substituted) aliphatic or alicyclic hydrocarbon hydrophobic group; (b) if the dye contains a metal, the hydrophobic group is not directly bonded to the metal; and (c) the dye is not a transition metal complex comprising a ligand with a pyridyl group, a N,N,N'N'-tetra-(1-4C alkyl)ethylene diamine or a di-(1-4C alkyl glyoxime). Also claimed are: (1) a PE device comprising the above PE material and an electrode electrically connected to the material; (2) a photoelectric device, as shown in the figure, comprising a first conductive layer (6) bearing the above PE material (5, 4) bearing an electrolyte layer (3) and a second conductive layer (2) in contact with the electrolyte layer; (3) the use of the photosensitising dyes (I)-(X) below in manufacturing a PE material and (4) a method of manufacturing a PE material, optionally as above, comprising dissolving an organic photosensitive dye in a hydrophobic and/or aprotic solvent and attaching the dye to semiconductor by contacting it with the solution (i.e. by dipping).    USE -   In photoelectric devices, e.g. a photovoltaic cell, a solar cell, an optical switching device or a sensor.    ADVANTAGE -   The PE material has a relatively high PE conversion efficiency it can be made at low cost and it has superior durability. Applying the dye from a hydrophobic or aprotic solvent eliminates the problem of water or hydroxyl groups in a solvent, e.g. ethanol, deactivating active sites on the semiconductor surface and preventing dye adsorption. The dyes, which have not been used in this application previously, dissolve readily in an organic solvent.