TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The semiconductor device including an organic photovoltaic device, which comprises cathode (electrode), optionally a transition layer, including an alkali halogenide, (preferably lithium fluoride), a photoactive layer, optionally a smoothing layer, an anode (electrode), and a substrate.    TECHNOLOGY FOCUS - POLYMERS - Preparation: No preparation method is given. The polymer is e.g. poly(3-furan-2-yl-6-(5-thiophen-2-yl-furan-2-yl)-2,5-dihydro-pyrrolo(3,4-c) pyrrole-1,4-dione) of formula (IXa), poly(3-furan-2-yl-6-(5-thieno(3,2-b)thiophen-2-yl-furan-2-yl)-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione) of formula (IXb), poly(3-furan-2-yl-6-(5-phenyl-furan-2-yl )-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione) of formula (IXc), poly(3-(5-methyl-thiophen-2-yl)-6-(5-(1H-pyrrol-2-yl)-thiophen-2-yl)-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione) of formula (IXd) and poly(3-(5-furan-2-yl-thiophen-2-yl)-6-thiophen-2-yl-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione) of formula (IXe).R1, R2 = 1-100C alkyl (optionally substituted by halo, OH, nitro, -CN, or 6-18C aryl, and/or optionally interrupted by -O-, -COO-, -OCO- or-S-), 5-12C cycloalkyl (optionally substituted by 1-3 times with 1-8C alkyl and/or 1-8C alkoxy), 6-24C aryl, preferably phenyl or 1-or 2-naphthyl, (optionally substituted by 1-3 times with 1-8C alkyl, 1-8C thioalkoxy, and/or 1-8C alkoxy), H, -COOR203, 7-100C arylalkyl, carbamoyl, or pentafluorophenyl;R203 = 1-50C alkyl, preferably 4-25C alkyl; andn = 4-1000. Full Definitions:    x, r, t = 0.995-0.005;    y, s, u = 0.005-0.995;    x+y = 1;    r+s+t+u = 1;    A = substituted diketopyrrolopyrrole moiety of formula (IV);    b, g = 1 or 2;    c, d, e, f = 0-2;    Ar1, Ar11 = substituted thiophene moiety of formula (Ia), substituted furan moiety of formula (Ib), substituted pyrrole moiety of formula (Ic) or substituted tetrahydro-thiophene moiety of formula (Id);    Ar2, Ar21, Ar3, Ar31 = substituted phenyl moiety of formula (Ie), substituted naphthyl moiety of formula (IIa) or (IIb), substituted carbazole moiety of formula (IIc), substituted fluorene moiety of formula (IId), benzo(1,2,5)thiadiazolyl moiety, 2,3-dihydro-thieno(3,4 -b)(1,4)dioxine moiety, or Ar1;    one of X3, X4 = N; and    other of X3, X4 = CR99;    R99, R104, R1041 = 1-25C alkyl (preferably 4-25C alkyl which is optionally interrupted by at least one O or S), H, halo (preferably F), 7-25C arylalkyl, or 1-25C alkoxy;    R105, R1051, R106, R1061 = 1-25C alkyl (optionally interrupted by at least one of O or S), H, halo, 7-25C arylalkyl or 1-18C alkoxy;    R107 = 6-18C aryl (optionally substituted by 1-18C alkyl, 1-18C perfluoroalkyl, or 1-18C alkoxy), 1-25C alkyl (optionally interrupted by -O-, or-S-), 7-25C arylalkyl or -COOR119;    R116 = 6-18C aryl (optionally substituted with 1-18C alkyl, 1-18C perfluoroalkyl, or 1-18C alkoxy), 1-25C alkyl (optionally interrupted by -O-,-S- or -COOR119), H or 7-25C arylalkyl;    R119 = 1-25C alkyl (optionally substituted by E1 and/or interrupted by D1), 6-24C aryl (optionally substituted by G, or 7-25C aralkyl) or 7-25C arylalkyl;    R108, R109 = 1-25C alkyl (optionally substituted by E1 and/or optionally interrupted by D1), 6-24C aryl (optionally substituted by G), 2-20 heteroaryl (optionally substituted by G), H or 7-25C arylalkyl; either    R108, R109 = H, 1-25C alkyl (optionally substituted by E1 and/or interrupted by D1), 7-25C arylalkyl, 6-24C aryl (optionally substituted by G, 2-2OC heteroaryl where 2-2OC heteroaryl is substituted by G), 2-18C alkenyl, 2-18C alkynyl, 1-18C alkoxy (optionally substituted by E1 and/or optionally interrupted by D1), or 7-25C aralkyl; or    R108+R109 = (=C)-R110R111 or five or six membered ring (optionally substituted with 1-18C alkyl, which is optionally substituted with E1 and/or interrupted by D1), 6-24C aryl (optionally substituted with G), 2-20C heteroaryl (optionally substituted with G), 2-18C alkenyl, 2-18C alkynyl, 1-18C alkoxy (optionally substituted with E1 and/or interrupted by D1) or 7-25C aralkyl;    R110, R111 = 1-18C alkyl (optionally substituted with E1 and/or optionally interrupted by D1), 6-24C aryl (optionally substituted by G) or 2-20C heteroaryl (optionally substituted with G), H;    D1 = -CO-, -COO-, -S-, -O- or -NR112;    E1 = 1-8C (thio)alkoxy, CN, -NR112R113, -CONR112R113 or halo;    G = E1 or 1-18C alkyl;    R112, R113 = 6-18C aryl (optionally substituted with 1-18C alkyl or 1-18C alkoxy), 1-18C alkyl (optionally substituted with -O-) or H;    B1,D, E = -(Ar4)k-(Ar5)l-(Ar6)r1-(Ar7)z-, substituted benzo(1,2-b;4,5-b')dithiophene moiety of formula (Va), substituted 2,3-dihydro-1,6-dithia-dicyclopenta(b,g)naphthalene moiety of formula (Vb), substituted 3,8-dithia-dicyclopenta(a,f)naphthalene moiety of formula (Vc), substituted 1,6-dithia-dicyclopenta(a,f)naphthalene moiety of formula (Vd), substituted 9H-carbazole moiety of formula (Ve), substituted 9H-fluorene moiety of formula (Vf), substituted toluene moiety of formula (Vg), substituted naphthalene moiety of formula (Vh), substituted dithiophenyl moiety of formula (Vj), benzo(1,2,5)thiadiazole moiety of formula (Vk), substituted thiophenyl moieties of formula (Vm), (Vn) or (Vo), substituted pyrene moiety of formula (Vp), substituted pyrene moiety of formula (Vq) or substituted diketopyrrolopyrrole moiety of formula (Vr);    r1, z = 0 or 1;    a = 1-5, preferably 1-3;    g, h = 1 or 2;    i, j, k, l = 0-2;    R11, R12 = R1;    Ar8, Ar81, Ar9, Ar91, Ar10, Ar101 = Ar2;    Ar4-Ar7 = substituted furan moiety of formula (IIg), substituted 1H-pyrrole moiety of formula (IIh), substituted thiophene moiety of formula (IIi), substituted thiophene moiety of formula (IIj), substituted thieno(3,2-b)thiophene moiety of formula (IIk), substituted thieno(2,3-b)thiophene moiety of formula (IIm), or 3H-1lambdaasterisk4asterisk-thiazolo(5,4-d)thiazole moiety of formula (IIn);    X5, X6 = N or CR14;    Ar20 = (hetero)arylene (both optionally substituted);    R118 = R116;    R12, R121 = 1-25C alkyl, preferably 4-25C alkyl (optionally interrupted by at least one of O, S, 1-25C alkoxy, 7-25C arylalkyl or -CC-R13), H or halo;    R13 = 1-10C alkyl or tri(1-8C alkyl)silyl;    R14, R141, R15, R151, R17, R171 = 1-25C alkyl, preferably 6-25C alkyl (optionally interrupted by at least one of O) or H;    R18, R181 = 1-25C alkyl, preferably 4-25C alkyl (optionally interrupted by O, S), H, halo, 7-25C aralkyl or 1-25C alkoxy;    R19 = 6-18C aryl (optionally substituted with 1-18C alkyl or 1-18C alkoxy), 1-25C alkyl, preferably 4-25C alkyl (optionally interrupted by O or S), H or 7-25C aralkyl;    R20, R201 = 1-25C alkyl, preferably 4-25C alkyl (optionally interrupted by at least one of O or S), H or 7-25C aralkyl;    X7 = -O-, -S-, - NR115, -Si(R117)(R1171)-, -C(R120)(R1201)-, -C(=O)-, (1,2,5)thiadiazole moiety of formula (IIo), substituted pyrazine moiety of formula (IIp), substituted 1,3-dihydro-imidazol-2-one moiety of formula (IIq), substituted 3H-pyrrole of formula (IIr), substituted phenyl moiety of formula (IIs) or substituted alkylene moiety of formula (IIt);    X8 = -O- or -NR115-;    R100, R1001 = H, F, 1-18C alkyl (optionally interrupted by O, 1-18C alkoxy which is optionally interrupted by O, 1-18C perfluoroalkyl) or 6-24C aryl (optionally substituted 1-3 times with1-8C alkyl and/or 1-8C alkoxy);    R303, R304, R305, R306 = 1-18C alkyl, 1-18C alkoxy (both optionally interrupted by O), 6-24C aryl, 2-20C heteroaryl (both optionally substituted by 1-3 times with 1-8C alkyl and/or 1-8C alkoxy), 1-18C perfluoroalkyl, H or F;    R307, R308 = 1-25C alkyl (optionally interrupted by at least one O or S) or H;    R309, R310, R311, R312 = 1-25C alkyl (optionally interrupted by at least one of O or S), H or 1-25C alkoxy;    R101, R1011 = 1-18C alkyl, 1-18C alkoxy (both optionally interrupted by O), 6-24C aryl, 2-20C heteroaryl (both optionally substituted by 1-3 times with 1-8C alkyl and/or 1-8C alkoxy), H, F or 1-18C perfluoroalkyl;    R102, R1021 = 1-25C alkyl (optionally interrupted at least one of O or S), H, halo, 7-25C arylalkyl, or 1-25C alkoxy; either    R103, R1031 = 1-25C alkyl (optionally interrupted at least one of O or S), 6-24C aryl (optionally substituted by 1-3 times with 1-8C alkyl and/or 1-8C alkoxy), 7-25C arylalkyl, CN, H, halo, or 1-25C alkoxy; or    R103+R1031 = ring;    R115, R1151 = 6-18C aryl (optionally substituted by 1-18C alkyl, or 1-18C alkoxy), 1-25C alkyl, preferably 4-25C alkyl (optionally interrupted by at least one of O or S), H, or 7-25C arylalkyl;    R117, R1171 = phenyl (optionally substituted by 1-3 times with 1-8C alkyl and/or 1-8C alkoxy), 1-35C alkyl or 7-25C arylalkyl;    R120, R1201 = 1-25C alkyl (optionally interrupted by at least one of O or S), 7-25C arylalkyl or H; and    R121 = 1-18C alkyl (optionally interrupted by at least one of O or S), 6-24C aryl, 2-20C heteroaryl (both optionally substituted 1-3 times with 1-8C alkyl and/or 1-8C alkoxy), H or 1-18C perfluoroalkyl.    Provided that: in case B1, D and E are a group of formula (IV), and are different from A; and at least at least one of Ar1, Ar11, Ar2, Ar21, Ar3 and Ar31 is substituted furan moiety of formula (IIIa) or substituted pyrrole moiety of formula (IIIb) and at least one of the B1, D or E contain substituted furan moiety of formula (IIIc) and/or substituted pyrrole moiety of formula (IIId). Preferred Definitions:    A = e.g. substituted 3,6-di-furan-2-yl-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione moiety of formula (VIIa), substituted 3,6-bis-(1H-pyrrol-2-yl)-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione moiety of formula (VIIb), substituted 3,6-bis-(5-cyclopenta-1,3-dienyl-furan-2-yl)-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione moiety of formula (VIIc), substituted 3,6-bis-(1H,1'H-(2,2')bipyrrolyl-5-yl)-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione moiety of formula (VIId) and substituted 3,6-bis-(2,2';5',2'')terfuran-5-yl-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione moiety of formula (VIIe); and    B,D, E = e.g. substituted thiophene moiety of formula (VIIIa) or (VIIIb), substituted thieno(3,2-b)thiophene moiety of formula (VIIIc), substituted thieno(2,3-b)thiophene moiety of formula (VIIId) and substituted (2,2')bithiophenyl moiety of formula (VIIIe).    EXAMPLE - 3-Furan-2-yl-6-(tetrahydro-furan-2-yl)-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione (20 g) and potassium carbonate (25.76 g) were suspended in dry dimethylformamide (300 ml) and the mixture was heated to 90 degrees C under nitrogen. Then 7-iodomethyl-pentadecane (79 g) was added drop wise. The reaction mixture was then stirred for 6 hours at 90 degrees C and then cooled. After cooling to room temperature ethylacetate was added and the mixture was washed with water. The organic phase was dried over magnesium sulfate and the solvent was evaporated and purified to obtain 3,6-di-furan-2-yl-2-(2-hexyl-decyl)-2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione; compound with 7-ethyl-pentadecane.