Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Hans-Heinrich Hoerhold"'
Publikováno v:
SPIE Proceedings.
We report on two-photon pumped frequency upconverted emission in doped PMMA fibers. The PMMA fibers were doped with a novel organic chromophore 1,4-bis(4-diphenylamino-styryl)-benzene (referred to as SP35) which is designed specifically to emit in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32aa34a2fc9289c9e6df3c64c8a4585c
https://doi.org/10.1117/12.472841
https://doi.org/10.1117/12.472841
Autor:
Hans-Heinrich Hoerhold, Michael Kroell, S. M. Lipson, Anna Drury, Werner J. Blau, Adam Strevens
Publikováno v:
SPIE Proceedings.
Organic light emitting diodes were fabricated using a novel electrode structure. The anode structure comprised of a metallic nanowire array and was fabricated by electroplating porous aluminium oxide with copper. These devices were compared with devi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9dd371243de39ec801730b42c92bc63b
https://doi.org/10.1117/12.464213
https://doi.org/10.1117/12.464213
Publikováno v:
SPIE Proceedings.
We report on a large optical gain, over the wide spectral range, and lasing in a glass-clad polymer optical fiber that uses a novel highly fluorescent stilbenoid compound, 1,4-bis(4-diphenylamino-styryl)-benzene. The compound has a high quantum yield
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec3c59bb1dd1e9a51fafb99749b63b8d
https://doi.org/10.1117/12.463699
https://doi.org/10.1117/12.463699
Publikováno v:
SPIE Proceedings.
We present measurements of the optical constants of a series of spin cast conjugated polymer and thermally evaporated small molecule films on silicon substrates. The optical constants are measured, using spectroscopic ellipsometry, from 0.75eV up to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b3047e717c4e46cbe1cf1b9a809710e
https://doi.org/10.1117/12.464054
https://doi.org/10.1117/12.464054
Autor:
Hans-Heinrich Hoerhold, Christopher R. McNeill, Patrick Fournet, Gordon G. Wallace, Anna Drury, D.F. O'Brien, Bernd Lahr, Werner J. Blau, Jonathan N. Coleman, Paul C. Dastoor
Publikováno v:
SPIE Proceedings.
Thanks to their cheap processability, organic optoelectronic devices are believed to gradually gain a non-negligible place on the market. However, their performances remain low, mainly because of the poor electron transport in conventional polymers u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69e2a4ebb2d597a98dcc641df85bd700
https://doi.org/10.1117/12.463921
https://doi.org/10.1117/12.463921
Autor:
Hans-Heinrich Hoerhold, A. J. Breeze, Hartwig Tillmann, Brian A. Gregg, Ashley Salomon, David S. Ginley
Publikováno v:
Organic Photovoltaics III.
We have explored the use of polymer / small molecule organic composites in the form of a polymer / perylene diimide heterojunction bilayer in order to combine the advantageous properties of both materials. Using the electron transporting perylene ben
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82627803ff9e399e3e14011a474260ad
https://doi.org/10.1117/12.452436
https://doi.org/10.1117/12.452436
Autor:
Hans-Heinrich Hoerhold, Alfons Penzkofer, Wolfgang Holzer, Cornelia Bader, Hartwig Tillmann, Reji Philip
Publikováno v:
SPIE Proceedings.
Wave-guided travelling-wave lasing (amplification of spontaneous emission in waveguide) is studied on neat films of the triphenylamine dimer 4-methyl-TPD, and of the 4-methyl-TPD phenyl substituted MEH-PPV copolymer TPD(4M)-MEH-P-PPV. Laser action is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0760920054e4e8d06777a1d60401c7b
https://doi.org/10.1117/12.474834
https://doi.org/10.1117/12.474834
Autor:
Wolfgang Holzer, Elisabeth Klemm, Hans-Heinrich Hoerhold, Hartwig Tillmann, Alfons Penzkofer, Cornelia Bader
Publikováno v:
SPIE Proceedings.
Using the methodology of traveling-wave lasing in neat films (amplified spontaneous emission, ASE) we have investigated the novel polycondensation-type MEH-PPV 1(strictly linear and fully conjugated) and some of its alternating copolymer combinations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecf84090dfc7b14e81fdc9f80af28975
https://doi.org/10.1117/12.457491
https://doi.org/10.1117/12.457491
Autor:
Barry Luther-Davies, Marek Samoc, Hartwig Tillmann, Hans-Heinrich Hoerhold, R. Stockmann, Anna Samoc
Publikováno v:
SPIE Proceedings.
Time-resolved degenerate four-wave mixing (DFWM) experiments performed on films of triphenylamino-phenylene vinylene (TPA-PPV) copolymer show the modulus of the nonlinear refractive index to be (2.1#0.4) x10-13 cm2/W at 800 nm. The polymer was synthe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92363fd34f7706a09fff75301e11508b
https://doi.org/10.1117/12.444983
https://doi.org/10.1117/12.444983
Autor:
Phillip J. Brock, Alison J. Breeze, Hartwig Tillmann, Hans-Heinrich Hoerhold, David S. Ginley, Zack Schlesinger, Sue A. Carter
Publikováno v:
SPIE Proceedings.
The main factors inhibiting higher conversion efficiencies in plain polymer layer sandwich photovoltaic devices are the low exciton dissociation efficiency and the low carrier mobilities in the polymer. We consider two different blend approaches for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::619e20fb872997a9ecbcd375255e7774
https://doi.org/10.1117/12.416932
https://doi.org/10.1117/12.416932