TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation: No preparation method is given.Preferred Components: The organic ionic-crystalline photoelectric layer is made of a conducting organic compound. The electrode is transparent. The rodlike supramolecules are oriented predominantly perpendicular or parallel to the surface of the first electrode. The planar conjugated heterocyclic molecular system is a vat dye comprising 11 anthraquinone fragments e.g. 6.15-dihydro-dinaphtho(2,3-a;2',3'-h)phenazine-5,9,14,18-tetraone, 30 perylene fragments e.g. perylene compound of formula (III), 2 anthanthrone fragments e.g. anthanthrone compound of formula (IV), 12 quinoxaline fragments e.g. 5,12-dihydro-quinoxalino(2,3-b)quinoxaline, 2 dioxazines fragments e.g. dioxazine compound of formula (V), 2 quinacridone fragments e.g. quinacridone compounds of formula (VI), 2 naphthoylenebenzimidazole fragments e.g. naphthoylenebenzimidazole compound of formula (VII) or phthalocyanine compounds of formula (VIII) (where M is copper, zinc, iron, cobalt, manganese, aluminum or vacancy). The organic ionic-crystalline photoelectric layer is substantially insoluble in the electrolyte. The first electrode comprises a transparent substrate and a conducting film formed on the surface of the transparent substrate in contact with the organic ionic-crystalline photoelectric layer. The transparent substrate is a polymer film, which is made of polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polypropylene, polyimide or triacetate cellulose. The conducting film is made of indium tin oxide, fluorine tin oxide, zinc oxide-gallium oxide (ZnO-Ga2O3), zinc oxide-aluminum oxide (ZnO-Al2O3) or tin oxide-antimony oxide (SnO2-Sb2O3). The second electrode comprises a transparent substrate and a two-layer conducting film comprising the first and second conducting layers formed on the substrate surface facing the electrolyte. The second conducting layer is made of a precious metal or porous material. The solar cell further comprises: an antireflection film formed on a surface of the first electrode facing to the surface facing the second electrode; an ultraviolet absorbing film formed on the surface of the first electrode opposite to the surface facing the second electrode; and an insulating porous layer situated between the organic ionic-crystalline photoelectric layer and the second electrode, where the electrolyte fills the pores of the insulating porous layer. The ultraviolet absorbing film made of a polymer. The organic ionic-crystalline photoelectric layer comprises light-scattering particles. The surface of the second electrode facing the first electrode is further coated with a thin layer of an electrocatalyst facing the electrolyte. The electrocatalyst is: platinum; a gel electrolyte containing a redox couple; a liquid electrolyte selected from the group of electrolytes comprising the a redox couple of cerium (III) sulfate and cerium (IV), redox couple of iodide (I-) and triiodide (I3-), redox couple of sodium bromide and bromine, and redox couple of lithium iodide and iodine in solution in solvents such as water, N-methyloxazolidinone, nitromethane, propylene carbonate, ethylene carbonate, butyrolactone, dimethyl imidazolidine and/or N-methylpyrrolidine. The gel electrolyte is made of 3-methoxypropionitrile-based liquid electrolyte solidified by poly(vinylidenefluoridehexafluoropropylene) copolymer. Preferred Definitions:    X = -COOH or -SO3H; and    Y1 = CONH2 (preferred) or SO2NH2.    EXAMPLE - A mixture of 2,5-dihydroxy-para-benzoquinone (1.4 g) and ortho-phenylenediamine (1.08 g) in acetic acid (50 ml) was stirred on boiling for 30 minutes. 3,4-Diaminobenzoic acid (1.52 g) was added to the reaction mixture for 16 hours. The reaction mixture was worked up to give 5a,6,13,13a-tetrahydroquinoxalino(2,3-b)phenazine-2carboxylic acid (2.54 g).