Zobrazeno 1 - 10
of 12
pro vyhledávání: '"H. F. Wittmann"'
Autor:
Andrew B. Holmes, Nir Tessler, Stephen C. Moratti, A. Lux, Richard H. Friend, Karl Pichler, G.J. Denton, Anna Köhler, N. T. Harrison, K. Towns, H. F. Wittmann, J. J. M. Halls
Publikováno v:
Solid State Communications. 102:249-258
We report progress in the processing and application of poly(phenylene vinylene), PPV, as the emissive layer in electroluminescent diodes, LEDs. Photoluminescence efficiencies above 60% for solid films of PPV are now achieved and single-layer EL diod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f52823b33e64bcd47db77f87be12f3b9
https://doi.org/10.1016/s0038-1098(96)00715-6
https://doi.org/10.1016/s0038-1098(96)00715-6
Autor:
Richard H. Friend, Muhammad S. Khan, J.L. Brédas, Muhammad Younus, H. F. Wittmann, Paul R. Raithby, S.C. Graham, Anna Köhler, Jack Lewis, David Beljonne
Publikováno v:
The Journal of Chemical Physics. 105:3868-3877
We present a joint experimental and theoretical investigation of the electronic excitations in transition metal‐containing phenylene ethynylenes. The influence of the metal on the nature of the lowest singlet and triplet excited states is character
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16ac2b04970a3be277dbb92c6cf9d7fa
https://doi.org/10.1063/1.472207
https://doi.org/10.1063/1.472207
Publikováno v:
Synthetic Metals. 77:147-150
We report photocurrent and photoluminescence measurements on blends of the organometallic polymer Pt-poly-yne and C 60 . Due to efficient intersystem crossing, triplet excitons with a binding energy of at least 0.8 eV are created after photoexcitatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c51e22cd68d9739aab19376afd8fda56
https://doi.org/10.1016/0379-6779(96)80076-2
https://doi.org/10.1016/0379-6779(96)80076-2
Autor:
Richard H. Friend, N. C. Greenham, Stephen C. Moratti, Franco Cacialli, D.R. Baigent, J. Grüner, A.B. Holmes, H. F. Wittmann
Publikováno v:
Solid-State Electronics. 40:477-485
Processible conjugated polymers can be used to fabricate a range of thin-film diodes which can be designed to show good characteristics, both as electroluminescent diodes and also as photoconductive diodes. We discuss the present understanding of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4af856aec2facc623d88247a086438a2
https://doi.org/10.1016/0038-1101(95)00314-2
https://doi.org/10.1016/0038-1101(95)00314-2
Autor:
Andrew B. Holmes, Steve C. Moratti, George W. C. Spencer, J. Grüner, H. F. Wittmann, Richard H. Friend
Publikováno v:
Advanced Materials. 7:541-544
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::557c003096b3e11ba4161e6be82b68c0
https://doi.org/10.1002/adma.19950070604
https://doi.org/10.1002/adma.19950070604
Autor:
A.B. Holmes, J. Grüner, H. F. Wittmann, Ullrich Scherf, P. J. Hamer, Stephen C. Moratti, Richard H. Friend, Klaus Müllen, J. Huber
Publikováno v:
Synthetic Metals. 67:181-185
We report investigations of electroluminescence and photoluminescence in several soluble ladder-type oligo( para -phenylene)s which we have used in a range of single- and double-layer electroluminescence devices. In double-layer devices which incorpo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4e5fef1e5b564df2c59bb24f7f479d6
https://doi.org/10.1016/0379-6779(94)90037-x
https://doi.org/10.1016/0379-6779(94)90037-x
Publikováno v:
Synthetic Metals. 67:245-249
We have carried out measurements of the photovoltaic effect in a platinum-containing poly-yne. A photocell was fabricated with the platinum poly-yne sandwiched between indium-tin oxide (ITO) and aluminium electrodes. A strong photoresponse was seen a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::507064688ee8303dfdf283f97b61eacf
https://doi.org/10.1016/0379-6779(94)90050-7
https://doi.org/10.1016/0379-6779(94)90050-7
Publikováno v:
The Journal of Chemical Physics. 101:2693-2698
We present a comparative study of two isostructural platinum and palladium poly‐ynes, poly[trans(bis(tributylphosphine))M(1,4) phenylenediethynylene], where M represents either platinum or palladium. Optical excitations are associated with the π
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19f0a6ff14635d13b37ec1ff02ebe6b0
https://doi.org/10.1063/1.467650
https://doi.org/10.1063/1.467650
Autor:
J.M. Toussaint, O. Lhost, K. Fuhrmann, Richard H. Friend, Muhammad Sarwar Khan, H. F. Wittmann, Jack Lewis, Jean-Luc Brédas
Publikováno v:
Scopus-Elsevier
Using an Extended Huckel approach, we investigate the electronic structure of a class of metal-containing polyynes (oligomers and polymers). These systems contain square-planar coordinated platinum sites linked by conjugated sequences of acetylenic u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94006ab391e5941b06df8abc3cce07cd
https://doi.org/10.1016/0379-6779(93)90777-t
https://doi.org/10.1016/0379-6779(93)90777-t
Publikováno v:
Synthetic Metals. 55:56-61
We have measured the optical properties of poly[trans(bis(tributylphosphine))platinum(1,4) phenylenediethynylene)]. In this polymer, conjugated phenylenediethynylene units are linked by square-planar coordinated platinum to form a linear chain. We co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f85e550445b4c2e52792eef0ec9ae6c
https://doi.org/10.1016/0379-6779(93)90909-g
https://doi.org/10.1016/0379-6779(93)90909-g