Zobrazeno 1 - 10
of 51
pro vyhledávání: '"RE Gill"'
Autor:
Georges Hadziioannou, P.F.van Hutten, A Hilberer, RE Gill, Victor V. Krasnikov, M.P L Werts, M. Moroni, T.A. Pham, George G. Malliaras, Hendrik-Jan Brouwer, Sjoerd Veenstra
Publikováno v:
Scopus-Elsevier
Macromolecular Symposia, 125, 99-109
Macromolecular Symposia, 125, 99-109
This article presents an overview of the work that has been done recently in our laboratory concerning the development and application of new conjugated materials with tunable properties. We have designed polymers containing oligo(phenylenevinylene)-
Autor:
Hendrik-Jan Brouwer, RE Gill, Georges Hadziioannou, T.A. Pham, Victor V. Krasnikov, P.F.van Hutten
Publikováno v:
Chemical Physics, 227(1-2), 65-74. ELSEVIER SCIENCE BV
The optical properties and structural organization of a 5-ring n-octyloxy-substituted oligo(p-phenylene vinylene) have been investigated in the solid state. For this study solution-grown single crystals and vacuum-deposited thin films were used. The
Publikováno v:
Advanced materials, 9(4), 331-334. WILEY-V C H VERLAG GMBH
Communication: Highly oriented thin films of oligo(p-phenylenevinylene)s, oligoPPVs, provide information about the structure of polyPPV and structure-property relationships. It is shown that deposition of a substituted oligoPPV onto highly preoriente
Publikováno v:
Chemistry of Materials, 8(6), 1341-1346. AMER CHEMICAL SOC
Described is the synthesis and the single-crystal structure of an all-trans dicyano-substituted five-ring PPV oligomer having two 12-octyloxy side chains attached onto the central phenyl ring. The crystal density (D-calc = 1.210 g cm(-3)) appears to
Publikováno v:
Macromolecules, 28(24), 8102-8116. AMER CHEMICAL SOC
Synthetic routes to alternating copolymers consisting of oligosilylene blocks and oligothiophene blocks (T-x; x = 1, 2, 3, 4, or 6 rings) are presented. Solubility requirements for obtaining acceptable molecular weights and, eventually, for film form
Publikováno v:
The Journal of Physical Chemistry. 99:3218-3224
Two approaches toward control of the luminescence wavelength of polythiophenes have been explored: (i) block copolymers in which oligothiophene blocks alternate with oligosilanylene blocks and (ii) regioregular polythiophenes in which oligothiophene
Publikováno v:
Applied Physics Letters, 73(6), 708-710
The influence of the morphology on the light emission properties of vacuum-deposited polycrystalline oligo(p-phenylene vinylene) thin films under intense laser excitation was studied. The morphology of the thin films was varied by annealing just belo
Publikováno v:
Applied Physics Letters, 66(19), 2540-2542
We report light emission from light emitting diodes with poly(3‐octylthiophene) (P3OT) as the active layer in both forward and reverse bias operation. The onset of electroluminescence (EL) of ITO/P3OT/Al devices occurs at current densities of 6.25
Autor:
Gg Malliaras, Jk Herrema, Georges Hadziioannou, Jurjen Wildeman, Rh Wieringa, Ss Lampoura, Re Gill
Publikováno v:
Advanced materials, 5(10), 721-723. WILEY-V C H VERLAG GMBH
The combination of wide‐ and narrow‐band‐gap polymers in a block copolymer can provide a means of increasing the luminescence efficiency of the materials. This occurs because the excitons that are formed are trapped within specific units in the
Autor:
Paul F. van Hutten, RE Gill, Georges Hadziioannou, Hendrik-Jan Brouwer, Victor V. Krasnikov, T.A. Pham
Publikováno v:
SPIE Proceedings.
Oligomers and block copolymers structurally related to PPV were investigated under intense optical excitation. Their well-defined molecular structure allows a better control of emission properties than is usually feasible in semiconducting polymers.