TECHNOLOGY FOCUS - ELECTRONICS - Preferred Components: The organic electronic device is an organic solar cell comprising active layer containing (I) as electron donor material or organic thin film transistor comprising n-type active layer including (I).    TECHNOLOGY FOCUS - POLYMERS - Preparation (Claimed): The preparation of (I) comprises reacting dihalide compounds of formula (X-B1-X) (XV) with organic compounds of formula (M-A-M) (XVI) to obtain B1 containing compounds of formula (-(A-B1)o-) (XVII), reacting (XVII) with (XVI) to obtain aromatic heterocyclic organic semiconductor compounds of formula (-(B1)o-(C1)p-(D1)q-) (XVIII) (representatives of (I)).M = -B(OH)2, 4,4,5,5-tetramethyl-(1,3,2)dioxaborolan-2-yl, -B(OR108)2, BFK3 or -Sn(R109)(R110)(R111); andR108-R111 = H or 1-30C alkyl.Preferred Components: (I) are 1-(4,8-bis-(2-ethyl-hexyloxy)-benzo(1,2-b;4,5-b')dithiophen-2-yl)-phenazine derivatives of formula (XIX), 1-(7,7-dioctyl-7H-3,4-dithia-7-sila-cyclopenta(a)pentalen-2-yl)-phenazine derivatives of formula (XX), 11-(2-(dioctylmethyl)-2H-benzotriazol-4-yl)-benzo(a)phenazine derivatives of formula (XXI), 10-(4,8-bis-(2-ethyl-hexyloxy)-benzo(1,2-b;4,5-b')dithiophen-2-yl)-dibenzo(a,c)phenazine derivatives of formula (XXII), 11-(7,7-dioctyl-7H-3,4-dithia-7-sila-cyclopenta(a)pentalen-2-yl)-benzo(a)phenazine derivatives of formula (XXIII), 11-(4,8-bis-(2-ethyl-hexyloxy)-benzo(1,2-b;4,5-b')dithiophen-2-yl)-5-carbazol-9-yl-benzo(a)phenazine derivatives of formula (XXIV), 11-(4,8-bis-(2-ethyl-hexyloxy)-benzo(1,2-b;4,5-b')dithiophen-2-yl)-benzo(a)phenazine derivatives of formula (XXV), 2-(dioctylmethyl)-4-(2-(dioctylmethyl)-2H-benzotriazol-4-yl)-2H-(1,2,3)triazolo(4,5-g)quinoxaline derivatives of formula (XXVI), 1-(2-(dioctylmethyl)-2H-benzotriazol-4-yl)-phenazine derivatives of formula (XXVII), (11-(4,8-Bis-(2-ethyl-hexyloxy)-benzo(1,2-b;4,5-b')dithiophen-2-yl)-benzo(a)phenazin-5-yl)-diphenyl-amine derivatives of formula (XXVIII), 5-carbazol-9-yl-11-(7,7-dioctyl-7H-3,4-dithia-7-sila-cyclopenta(a)pentalen-2-yl)-benzo(a)phenazine derivatives of formula (XXIX), 10-(2-(dioctylmethyl)-2H-benzotriazol-4-yl)-dibenzo(a,c)phenazine derivatives of formula (XXX), 10-(7,7-dioctyl-7H-3,4-dithia-7-sila-cyclopenta(a)pentalen-2-yl)-dibenzo(a,c)phenazine derivatives of formula (XXXI), 5-(2-(dioctylmethyl)-2H-benzotriazol-4-yl)-quinoxaline derivatives of formula (XXXII), 5-carbazol-9-yl-11-(2-(dioctylmethyl)-2H-benzotriazol-4-yl)-benzo(a)phenazine derivatives of formula (XXXIII) and 4-(2-(dioctylmethyl)-2H-benzotriazol-4-yl)-2-thia-1,3,5,8-tetraaza-cyclopenta(b)naphthalene derivatives of formula (XXXIV).R = C8H17. EXAMPLE - 300 mg 1,4-Dibromophenazine and 300 mg 4,8-bis-(2-ethyl-hexyloxy)-2,6-bis-trimethylstannanyl-benzo(1,2-b;4,5-b')dithiophene were dried and dissolved in 15 ml chlorobenzene under anaerobic conditions, then each 10 mg tris(dibenzylideneacetone)dipalladium(0) and tri(o-tolyl)phosphine dissolved in 1 ml chlorobenzene were added to the obtained solution, reacted under stirring condition at 150 degrees C for 48 hours and worked up to obtain (XIX) with weight average molecular weight of 22000.