TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Claimed): The preparation of the triphenylamine derivatives comprises: (i) mixing para iodotriphenylamine with R1, R2 and R3 substitutions with substituted R4 acetylene in a molar ratio of 2:3, in an inert gas atmosphere, adding triphenylphosphine palladium dichloride and cuprous iodide according to the amount of a catalyst, mixing the mixture with an organic solvent, refluxing under stirring conditions, and filtering to obtain a crude product, processing by silica gel column chromatography or recrystallizing to obtain alkynyl triphenylamine; and (ii) in an inert gas atmosphere, mixing the obtained alkynyl triphenylamine with tetracyanoethylene in a ratio of 1:1, stirring the mixture in methylene dichloride, processing by silica gel column chromatography or recrystallizing to obtain the product. Preferred Components: The organic solvent is diethylamine, triethylamine, tripropylamine, ethyl diamine or tertiary butyl amine. The organic solar cell appliance comprises a cathode, an anode and an organic thin film layer, where the organic thin film layer between the cathode and the anode includes at least one organic photosensitive layer, which comprises (I). Preferred Definitions:    R1, R2, R3 = CH3, C2H5, C3H7, isopropyl, butyl, isobutyl, sec-butyl, isobutyl, tertiary butyl, n-amyl, n-hexyl, n-heptyl, n-octyl, hydroxymethyl, 1-hydroxymethyl, 2-hydroxyethyl, 2-hydroxy isobutyl, 1,2-dihydroxy ethyl, 1,3-di hydroxyl isopropyl, 2,3-dihydroxy-tertiary butyl, 1,2,3-trihydroxy propyl, amino methyl, 1-amino ethyl, 2-amino ethyl, 2-amino isobutyl, 1,2-diamino ethyl, 1,3-diamino isopropyl, 2,3-diamino-tertiary butyl, 1,2,3-triamino butyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, 4-methyl cyclohexyl, adamantyl, alkyl norbornene, methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, sec-butoxy, tertiary butoxy, n-amyloxy, n-hexyloxy, n-heptoxy, n-octyloxy, hydroxymethyloxy, 1-hydroxyethyloxy, 2-hydroxyethyloxy, 1,2-dihydroxy ethyloxy, benzyl, 1-phenyl ethyl, 2-phenyl ethyl, 1-phenyl isopropyl, 2-phenyl isopropyl, phenyl tertiary butyl, alpha -naphthyl methyl, 1- alpha -naphthyl ethyl, 2- alpha -naphthyl ethyl, 1- alpha -naphthyl isopropyl, 2- alpha -naphthyl isopropyl, beta -naphthyl, 1- beta -naphthyl ethyl, 2- beta -naphthyl ethyl, 1- beta -naphthyl isopropyl, 2- beta -naphthyl isopropyl, 1-pyrrolyl methyl, 2-(1-pyrrolyl) ethyl, para methyl benzyl, phenyl, 1-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, 1-phenanthryl, 2-phenanthryl, 3-phenanthryl, 4-phenanthryl, 9-phenanthryl, 1-tetraphenyl, 2-tetraphenyl, 9-tetraphenyl, 1-pyrenyl, 2-pyrenyl, 4-pyrenyl, 2-biphenyl, 3-biphenyl, 4-biphenyl, para-terbiphenyl-4-yl, para-terbiphenyl-3-yl, para-terbiphenyl-2-yl, meta- terbiphenyl-4-yl, meta-terbiphenyl-3-yl, meta-terbiphenyl-2-yl, o-terbiphenyl-4-yl, o-terbiphenyl-3-yl, o-terbiphenyl-2-yl, p-tolyl, meta-tolyl, phenyloxy, 1-naphthyloxy, 1-anthryloxy, 2-anthryloxy, 9-anthryloxy, 1-phenanthryloxy, 2-phenanthryloxy, 3-phenanthryloxy, 4-phenanthryloxy, 9-phenanthryloxy, 1-tetraphenyloxy, 2-tetraphenyloxy, 9-tetraphenyloxy, 1-pyrenyloxy, 2-pyrenyloxy, 4-pyrenyloxy, 2-biphenyloxy, 3-biphenyloxy, 4-biphenyloxy, para-terbiphenyl-4-yloxy, para-terbiphenyl-3-yloxy, para-terbiphenyl-2-yloxy, meta- terbiphenyl-4-yloxy, meta-terbiphenyl-3-yloxy, meta-terbiphenyl-2-yloxy, o-terbiphenyl-4-yloxy, o-terbiphenyl-3-yloxy, o-terbiphenyl-2-yloxy, p-tolyloxy, meta-tolyloxy, 1-pyrrolyl, 2-pyrrolyl, 3-pyrrolyl, pyridyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 1-indolyl, 2-indolyl, 3-indolyl, 4-indolyl, 5-indolyl, 6-indolyl, 7-indolyl, 1-isoindolyl, 2-isoindolyl, 3-isoindolyl, 4-isoindolyl, 5-isoindolyl, 6-isoindolyl, 7-isoindolyl, 2-furyl, 3-furyl, 2-benzofuranyl, 3-benzofuranyl, 4-benzofuranyl, 5-benzofuranyl, 6-benzofuranyl, 7-benzofuranyl,1-isobenzofuranyl, 3-isobenzofuranyl, 4-isobenzofuranyl, 5-isobenzofuranyl, 6-isobenzofuranyl, 7-isobenzofuranyl, 2-quinolyl, 3-quinolyl, 4-quinolyl, 5-quinolyl, 6-quinolyl, 7-quinolyl, 8-quinolyl, 1-isoquinolyl, 3-isoquinolyl, 4-isoquinolyl, 5-isoquinolyl, 6-isoquinolyl, 7-isoquinolyl or 8-isoquinolyl; and    R4 = monofluoro methyl, difluoro methyl, trifluoro methyl, methyl ester, ethyl ester, propyl ester, isopropyl ester, n-butyl ester, sec-butyl ester, isobutyl ester, n-amyl ester, n-hexyl ester, n-heptyl ester or n-octyl ester.