Publications
421 results found
Gather MC, Heeney M, Zhang W, et al., 2008, An alignable fluorene thienothiophene copolymer with deep-blue electroluminescent emission at 410 nm, CHEMICAL COMMUNICATIONS, Pages: 1079-1081, ISSN: 1359-7345
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- Citations: 45
Heeney M, Zhang W, Tierney S, et al., 2008, WO2008011957. Substituted benzodithiophenes and benzodiselenophenes for use as semiconductors or charge transport materials in optical, electro-optical or electronic devices.
The invention relates to alkynyl substituted benzodithiophenes and benzodiselenophenes, their use esp. as semiconductors or charge transport materials in optical, electro-optical or electronic devices and to such devices comprising these materials. [on SciFinder(R)]
Heeney M, Zhang W, Tierney S, et al., 2008, WO2008077465. Polymers comprising fused selenophenes for use in optical, electrooptical and electronic devices.
Disclosed is a polymer (I), wherein one of X1 and X2 is Se and the other one is S or Se, R1 and R2 are independently of each other identical or different groups selected from H, halogen, -CN, -NC, -NCO, - NCS, -OCN, -SCN, -C(=O)NR0R00, -C(=O)X0, -C(=O)R0, -NH2, -NR0R0, -SH, -SR0, -SO3H, -SO2R0, -OH, -NO2, -CF3, -SF5, P-Sp-, optionally substituted silyl, or carbyl or hydrocarbyl with 1 to 40 C atoms which is/are optionally substituted and optionally comprise one or more hetero atoms, P is a polymerizable group, Sp is a spacer group or a single bond, X0 is halogen, R0 and R00 are independently of each other H or an optionally substituted aliph. or arom. hydrocarbon group having 1 to 20 C atoms, Ar is in case of multiple occurrence independently of one another -CY1=CY2, acetylene or mono- or polynuclear aryl or heteroraryl which is optionally substituted, Y1 and Y2 are independently of each other H, F, Cl or CN, m is 0-4, and n is an integer > 10. The invention relates to polymers comprising fused selenophene rings, to their use as semiconductors or charge transport materials in optical, electrooptical or electronic devices, and to optical, electrooptical or electronic devices comprising them. In the examples of the invention, first 2,5-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)selenopheno[3,2-b]thiophene was prepd. and (0.25 g, 0.56 mmol) of it was polymd. with (0.43 g, 0.56 mol) of 5,5'-dibromo-4,4'-dihexadecyl-2,2'-bithiophene by using Pd2[dba]3, tris-(tert-butyl) phosphine tetrafluoroborate and K2CO3 as catalysts, after pptn. and purifn. 0.37 g, 82 % of poly[5,5'-(4,4'-dihexadecyl-[2,2']bithiophene)-co-(selenopheno[3,2-b]thiophene)] was obtained. [on SciFinder(R)]
Hoffart T, Falk B, McCulloch I, et al., 2008, WO2008092490. Process for preparing regioregular polythiophenes and polyselenophenes.
The invention relates to a process for prepg. regioregular polymers, in particular head-to-tail (HT) poly(3-substituted) thiophenes and selenophenes, with high regioregularity and defined mol. wt., to the polymers prepd. by this process, and to the use of the polymers as semiconductors or charge transport materials in optical, electrooptical and electronic devices, including field effect transistors, electroluminescent, photovoltaic and sensor devices. Thus, 2,5-dibromo-3-hexylthiophene (3.5 kg) was dissolved in THF (18 kg) under N2, followed by adding a soln. of n-butylmagnesium chloride in THF (2M, 5.1 kg), and heating the mixt. to 25°. In parallel, 2,5-dibromo-3-hexylthiophene (87 g) was dissolved in THF (7.5 kg) in a sep. vessel under N2, followed by adding 1,3-bis(diphenylphosphino)propane (112 g) and Ni(COD)2 (73 g), stirring the mixt. at 60° for 10 min, and cooling to 25°. The catalyst mixt. was added to the Grignard mixt., and the system was heated to reflux for 5 min, followed by adding a soln. of n-butylmagnesium chloride in THF (2M, 0.7 kg), refluxing for 10 min, adding a 25%-aq. HCl soln. (8.5 kg) and methanol (40 kg) to obtain a polymer (73.4% yield) having a no.-av. mol. wt. of 19,770, a wt.-av. mol. wt. of 34,070, and a content of head-to-tail couplings of 94.7%. [on SciFinder(R)]
Heeney M, Zhang W, Mcculloch I, 2008, WO2008131835. Organic semiconductors.
The invention relates to novel substituted dibenzo[d,d']benzo[1,2-b;4,5-b']dithiophenes I [R1-R3 = halogen, CN, NC, NCO, NCS, OCN, SCN, CONR4R5, COX, COR4, NH2, NR4R5, SH, SR4, SO3H, SO2R4, OH, NO2, CF3, SF5, silyl, carbyl, hydrocarbyl, neighboring R1-R2 may form ring with each other or benzene ring, R1 and R2 may also be H; X = halogen; R4, R5 = H, aliph. or arom. hydrocarbyl having 1-20 C]. Methods of their synthesis, org. semiconducting material formulations and layers comprising them, and electronic devices like org. field effect transistors (OFETs) comprising them are also described. [on SciFinder(R)]
Tierney S, Heeney M, Bailey C, et al., 2008, WO2008128618. Process for preparing substituted pentacenes.
The invention relates to a process of prepg. substituted pentacenes, to novel pentacenes prepd. by this process, to the use of the novel pentacenes as semiconductors or charge transport materials in optical, electrooptical or electronic devices including field effect transistors (FETs), electroluminescent, photovoltaic and sensor devices, and to FETs and other semiconducting components or materials comprising the novel pentacenes. Thus, 1,4,8,11-tetramethyl-6,13-bis(triethylsilylethynyl)dentacene was prepd. and used as a semiconductor for an OFET device, showing high mobility and a high on/off ratio. [on SciFinder(R)]
Ballantyne AM, Chen L, Nelson J, et al., 2007, Studies of highly regioregular poly(3-hexylselenophene) for photovoltaic applications, ADVANCED MATERIALS, Vol: 19, Pages: 4544-+, ISSN: 0935-9648
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- Citations: 141
Hamadani BH, Gundlach DJ, McCulloch I, et al., 2007, Undoped polythiophene field-effect transistors with mobility of 1 cm<SUP>2</SUP> V<SUP>-1</SUP> s<SUP>-1</SUP>, APPLIED PHYSICS LETTERS, Vol: 91, ISSN: 0003-6951
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- Citations: 209
Yuen JD, Dhoot AS, Namdas EB, et al., 2007, Electrochemical doping in electrolyte-gated polymer transistors, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 129, Pages: 14367-14371, ISSN: 0002-7863
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- Citations: 141
Chang J-F, Sirringhaus H, Giles M, et al., 2007, Relative importance of polaron activation and disorder on charge transport in high-mobility conjugated polymer field-effect transistors, PHYSICAL REVIEW B, Vol: 76, ISSN: 2469-9950
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- Citations: 83
Kline RJ, DeLongchamp DM, Fischer DA, et al., 2007, Critical role of side-chain attachment density on the order and device performance of polythiophenes, MACROMOLECULES, Vol: 40, Pages: 7960-7965, ISSN: 0024-9297
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- Citations: 307
Milian Medina B, Van Vooren A, Brocorens P, et al., 2007, Electronic structure and charge-transport properties of polythiophene chains containing thienothiophene units: A joint experimental and theoretical study, CHEMISTRY OF MATERIALS, Vol: 19, Pages: 4949-4956, ISSN: 0897-4756
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- Citations: 27
McCulloch I, Heeney M, Zhang W, et al., 2007, Regioregular poly(3-hexyl)selenophene: A low bandgap organic hole transporting polymer, Chem. Comm, ISSN: 1476-1122
Sonar P, Grimsdale AC, Heeney M, et al., 2007, A study of the effects metal residues in poly(9,9-dioctylfluorene) have on field-effect transistor device characteristics, SYNTHETIC METALS, Vol: 157, Pages: 872-875, ISSN: 0379-6779
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- Citations: 14
Pang H, Skabara PJ, Crouch DJ, et al., 2007, Structural and electronic effects of 1,3,4-thiadiazole units incorporated into polythiophene chains, MACROMOLECULES, Vol: 40, Pages: 6585-6593, ISSN: 0024-9297
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- Citations: 51
Hamadani BH, Richter CA, Gundlach DJ, et al., 2007, Influence of source-drain electric field on mobility and charge transport in organic field-effect transistors, JOURNAL OF APPLIED PHYSICS, Vol: 102, ISSN: 0021-8979
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- Citations: 49
Kim Y, Cook S, Kirkpatrick J, et al., 2007, Effect of the end group of regioregular poly(3-hexylthiophene) polymers on the performance of polymer/fullerene solar cells, JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 111, Pages: 8137-8141, ISSN: 1932-7447
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- Citations: 87
Chabinyc ML, Lujan R, Endicott F, et al., 2007, Effects of the surface roughness of plastic-compatible inorganic dielectrics on polymeric thin film transistors, APPLIED PHYSICS LETTERS, Vol: 90, ISSN: 0003-6951
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- Citations: 61
Koppe M, Scharber M, Brabec C, et al., 2007, Polyterthiophenes as donors for polymer solar cells, ADVANCED FUNCTIONAL MATERIALS, Vol: 17, Pages: 1371-1376, ISSN: 1616-301X
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- Citations: 80
Chabinyc ML, Toney MF, Kline RJ, et al., 2007, X-ray scattering study of thin films of poly(2,5-bis(3-alkylthiophen-2-yl)thieno[3,2-<i>b</i>]thiophene), JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 129, Pages: 3226-3237, ISSN: 0002-7863
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- Citations: 331
DeLongchamp DM, Kline RJ, Lin EK, et al., 2007, High carrier mobility polythiophene thin films: Structure determination by experiment and theory, ADVANCED MATERIALS, Vol: 19, Pages: 833-+, ISSN: 0935-9648
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- Citations: 250
Kline RJ, DeLongchamp DM, Fischer DA, et al., 2007, Significant dependence of morphology and charge carrier mobility on substrate surface chemistry in high performance polythiophene semiconductor films, APPLIED PHYSICS LETTERS, Vol: 90, ISSN: 0003-6951
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- Citations: 127
Baldwin RJ, Kreouzis T, Shkunov M, et al., 2007, A comprehensive study of the effect of reactive end groups on the charge carrier transport within polymerized and nonpolymerized liquid crystals, JOURNAL OF APPLIED PHYSICS, Vol: 101, ISSN: 0021-8979
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- Citations: 19
Lucas LA, DeLongchamp DM, Vogel BM, et al., 2007, Combinatorial screening of the effect of temperature on the microstructure and mobility of a high performance polythiophene semiconductor, APPLIED PHYSICS LETTERS, Vol: 90, ISSN: 0003-6951
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- Citations: 26
Kim Y, Nelson J, Durrant JR, et al., 2007, Polymer chain/nanocrystal ordering in thin films of regioregular poly(3-hexylthiophene) and blends with a soluble fullerene, SOFT MATTER, Vol: 3, Pages: 117-121, ISSN: 1744-683X
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- Citations: 44
Hamadani BH, McCulloch I, Heeney M, et al., 2007, Achieving high mobilities in solution-processable organic FETs by minimizing contact effects, International Semiconductor Device Research Symposium, Publisher: IEEE, Pages: 526-526
Hamadani BH, LeBoeuf JL, Kline RJ, et al., 2007, Distinguishing between nonlinear channel transport and contact effects in organic FETs, Conference on Organic Field-Effect Transistors VI, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
Basu D, Wang L, Dunn L, et al., 2006, Direct measurement of carrier drift velocity and mobility in a polymer field-effect transistor, APPLIED PHYSICS LETTERS, Vol: 89, ISSN: 0003-6951
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- Citations: 14
McCulloch I, Bailey C, Genevicius K, et al., 2006, Designing solution-processable air-stable liquid crystalline crosslinkable semiconductors, PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol: 364, Pages: 2779-2787, ISSN: 1364-503X
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- Citations: 9
Chang J-F, Clark J, Zhao N, et al., 2006, Molecular-weight dependence of interchain polaron delocalization and exciton bandwidth in high-mobility conjugated polymers, PHYSICAL REVIEW B, Vol: 74, ISSN: 2469-9950
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- Citations: 258
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