Reducing bleaching effects in organic nanofibers by coating

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

Resumé

Para-hexaphenylene (p-6P) organic nanofibers emit polarized, blue light upon UV excitation with a peak wavelength of the emitted light of 425 nm [1] and a spatially anisotropic distribution of the emitted light [2]. These features could enable future (opto-)electronic applications [3], since, for example, these molecules in the form of a thin film can function as an OLED [4]. However, the nanofibers exhibit a characteristic photoinduced reaction during illumination with UV light that causes a decrease in luminescence intensity (bleaching) and that is partly attributed to photooxidation [1]. Here, we present results of systematic bleaching experiments, in which we have investigated diverse mono- and multilayer coating materials. It is found that the most promising combination results in a significant reduction of bleaching without affecting significantly the emission spectrum.
OriginalsprogEngelsk
Publikationsdatosep. 2009
StatusUdgivet - sep. 2009
BegivenhedChemistry and Physics of Materials for Energetics. A European School in Materials Science. Physics and Chemistry of Advanced Materials (PCAM) - Milano, Italien
Varighed: 14. sep. 200919. sep. 2009

Konference

KonferenceChemistry and Physics of Materials for Energetics. A European School in Materials Science. Physics and Chemistry of Advanced Materials (PCAM)
LandItalien
ByMilano
Periode14/09/200919/09/2009

Fingeraftryk

bleaching
coatings
photooxidation
emission spectra
illumination
luminescence
causes
thin films
electronics
wavelengths
excitation
molecules

Bibliografisk note

1] C. Maibohm, J. R. Brewer, H. Sturm, F. Balzer, H.-G. Rubahn, J. Appl. Phys. 100, 054304 (2006)
[2] J. Brewer, C. Maibohm, L. Jozefowski, L. Bagatolli, H.-G. Rubahn, Nanotechnology 16, 2396 (2005)
[3] F. Balzer and H.-G. Rubahn, Adv. Funct. Mater. 15, 17 (2005)
[4] H. Yanagi and S. Okamoto, Appl. Phys. Lett. 71, 2563 (1997)

Citer dette

Tavares, L., Kjelstrup-Hansen, J., Rubahn, H-G., & Sturm, H. (2009). Reducing bleaching effects in organic nanofibers by coating. Poster session præsenteret på Chemistry and Physics of Materials for Energetics. A European School in Materials Science. Physics and Chemistry of Advanced Materials (PCAM) , Milano, Italien.
Tavares, Luciana ; Kjelstrup-Hansen, Jakob ; Rubahn, Horst-Günter ; Sturm, Heinz. / Reducing bleaching effects in organic nanofibers by coating. Poster session præsenteret på Chemistry and Physics of Materials for Energetics. A European School in Materials Science. Physics and Chemistry of Advanced Materials (PCAM) , Milano, Italien.
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title = "Reducing bleaching effects in organic nanofibers by coating",
abstract = "Para-hexaphenylene (p-6P) organic nanofibers emit polarized, blue light upon UV excitation with a peak wavelength of the emitted light of 425 nm [1] and a spatially anisotropic distribution of the emitted light [2]. These features could enable future (opto-)electronic applications [3], since, for example, these molecules in the form of a thin film can function as an OLED [4]. However, the nanofibers exhibit a characteristic photoinduced reaction during illumination with UV light that causes a decrease in luminescence intensity (bleaching) and that is partly attributed to photooxidation [1]. Here, we present results of systematic bleaching experiments, in which we have investigated diverse mono- and multilayer coating materials. It is found that the most promising combination results in a significant reduction of bleaching without affecting significantly the emission spectrum.",
keywords = "Organic nanofibers, Bleaching, Coating, p6P",
author = "Luciana Tavares and Jakob Kjelstrup-Hansen and Horst-G{\"u}nter Rubahn and Heinz Sturm",
note = "1] C. Maibohm, J. R. Brewer, H. Sturm, F. Balzer, H.-G. Rubahn, J. Appl. Phys. 100, 054304 (2006) [2] J. Brewer, C. Maibohm, L. Jozefowski, L. Bagatolli, H.-G. Rubahn, Nanotechnology 16, 2396 (2005) [3] F. Balzer and H.-G. Rubahn, Adv. Funct. Mater. 15, 17 (2005) [4] H. Yanagi and S. Okamoto, Appl. Phys. Lett. 71, 2563 (1997) ; null ; Conference date: 14-09-2009 Through 19-09-2009",
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Tavares, L, Kjelstrup-Hansen, J, Rubahn, H-G & Sturm, H 2009, 'Reducing bleaching effects in organic nanofibers by coating', Chemistry and Physics of Materials for Energetics. A European School in Materials Science. Physics and Chemistry of Advanced Materials (PCAM) , Milano, Italien, 14/09/2009 - 19/09/2009.

Reducing bleaching effects in organic nanofibers by coating. / Tavares, Luciana ; Kjelstrup-Hansen, Jakob; Rubahn, Horst-Günter; Sturm, Heinz.

2009. Poster session præsenteret på Chemistry and Physics of Materials for Energetics. A European School in Materials Science. Physics and Chemistry of Advanced Materials (PCAM) , Milano, Italien.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

TY - CONF

T1 - Reducing bleaching effects in organic nanofibers by coating

AU - Tavares, Luciana

AU - Kjelstrup-Hansen, Jakob

AU - Rubahn, Horst-Günter

AU - Sturm, Heinz

N1 - 1] C. Maibohm, J. R. Brewer, H. Sturm, F. Balzer, H.-G. Rubahn, J. Appl. Phys. 100, 054304 (2006) [2] J. Brewer, C. Maibohm, L. Jozefowski, L. Bagatolli, H.-G. Rubahn, Nanotechnology 16, 2396 (2005) [3] F. Balzer and H.-G. Rubahn, Adv. Funct. Mater. 15, 17 (2005) [4] H. Yanagi and S. Okamoto, Appl. Phys. Lett. 71, 2563 (1997)

PY - 2009/9

Y1 - 2009/9

N2 - Para-hexaphenylene (p-6P) organic nanofibers emit polarized, blue light upon UV excitation with a peak wavelength of the emitted light of 425 nm [1] and a spatially anisotropic distribution of the emitted light [2]. These features could enable future (opto-)electronic applications [3], since, for example, these molecules in the form of a thin film can function as an OLED [4]. However, the nanofibers exhibit a characteristic photoinduced reaction during illumination with UV light that causes a decrease in luminescence intensity (bleaching) and that is partly attributed to photooxidation [1]. Here, we present results of systematic bleaching experiments, in which we have investigated diverse mono- and multilayer coating materials. It is found that the most promising combination results in a significant reduction of bleaching without affecting significantly the emission spectrum.

AB - Para-hexaphenylene (p-6P) organic nanofibers emit polarized, blue light upon UV excitation with a peak wavelength of the emitted light of 425 nm [1] and a spatially anisotropic distribution of the emitted light [2]. These features could enable future (opto-)electronic applications [3], since, for example, these molecules in the form of a thin film can function as an OLED [4]. However, the nanofibers exhibit a characteristic photoinduced reaction during illumination with UV light that causes a decrease in luminescence intensity (bleaching) and that is partly attributed to photooxidation [1]. Here, we present results of systematic bleaching experiments, in which we have investigated diverse mono- and multilayer coating materials. It is found that the most promising combination results in a significant reduction of bleaching without affecting significantly the emission spectrum.

KW - Organic nanofibers

KW - Bleaching

KW - Coating

KW - p6P

M3 - Poster

ER -

Tavares L, Kjelstrup-Hansen J, Rubahn H-G, Sturm H. Reducing bleaching effects in organic nanofibers by coating. 2009. Poster session præsenteret på Chemistry and Physics of Materials for Energetics. A European School in Materials Science. Physics and Chemistry of Advanced Materials (PCAM) , Milano, Italien.