ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    Digitale Medien
    Digitale Medien
    Organic/inorganic superlattices with ordered organic layers (1995)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 77 (1995), S. 1985-1989 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Superlattices consisting of alternating layers of organic and inorganic materials have been fabricated from 3,4,9,10-perylenetetracarboxylic diimide (PTCDI), copper phthalocyanine (CuPc), and MgF2 by molecular-beam deposition. From the small-angle x-ray diffraction patterns of PTCDI/MgF2 and CuPc/MgF2 superlattices, a periodically layered structure is confirmed through the entire stack. The PTCDI layers in the PTCDI/MgF2 superlattices have a high degree of structural ordering, in which molecular planes are nearly parallel to the substrate surface. On the other hand, the CuPc/MgF2 superlattices have a poorly ordered structure in the CuPc layers. It is found that the optical absorption spectra of these superlattices are different from those of organic single films and significantly change with varying organic layer thickness. Such spectral changes can be interpreted by the effect of the aggregate size and the coexistence of two different crystal forms. © 1995 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.358834
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Electrical properties of Ta–Sn–O films on indium tin oxide electrodes (1997)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 70 (1997), S. 270-272 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: We have found that Ta–Sn–O films prepared on indium tin oxide (ITO) electrodes by magnetron cosputtering of Ta2O5 and SnO2 have much higher breakdown field strength than the Ta2O5 films on the ITO electrodes. The highly insulating Ta–Sn–O films were obtained in the Sn concentration range of 3–40 at. %. The figure of merit, which was defined by the multiplication of the breakdown field strength by the relative dielectric constant, of the Ta–Sn–O films was found to become a maximum in the Sn concentration of about 3 at. %. The experimental results of temperature dependence of the leakage currents indicated that the conduction mechanisms at room temperature changed from Poole–Frenkel type to Fowler–Nordheim tunneling type by adding SnO2 into Ta2O5 films. © 1997 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.118360
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Thermal stability in oligomeric triphenylamine/tris(8-quinolinolato) aluminum electroluminescent devices (1997)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 70 (1997), S. 1929-1931 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Thermal stability of the electroluminescent (EL) devices using various hole-transporting materials based on triphenylamine, and a typical emitting material, tris(8-quinolinolato) aluminum has been systematically studied. The thermal stability of the EL devices is clearly seen to depend on the glass transition temperature (Tg) of the hole-transporting material. The highest thermal stability up to 155 °C is obtained in the device using the pentamer of triphenylamine. It has been found that the linear linkage of triphenylamine is useful to attain high Tg rather than the branch linkage. © 1997 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.118782
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Optical third-harmonic generation from poly(2,5-thienylene vinylene) thin films (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 53 (1988), S. 2002-2004 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Third-harmonic generation measurements have been made on poly(2,5-thienylene vinylene) (PTV) thin films. The third-order optical susceptibility χ(3) was evaluated to be 3.2×10−11 esu at 1.85 μm wavelength. It was also revealed that in weakly iodine-doped PTV thin films, χ(3) was almost the same value as that of nondoped films. χ(3) at a shorter wavelength region was expected to be much higher than that obtained in this work due to the resonant effect.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.100416
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Optical third-harmonic generation from poly-(2,5-dimethoxy p-phenylene vinylene) thin film (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 54 (1989), S. 1619-1621 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Third-harmonic generation has been measured in poly(2,5-dimethoxy p-phenylene vinylene) thin film. The third-order optical susceptibility, χ(3), was evaluated to be 5.4×10−11 esu at 1.85 μm wavelength. This χ(3) value is about one order higher than that for poly(p-phenylene vinylene) and almost the same value as for poly(n-BCMU diacetylene) which possesses the highest χ(3) value among processible (solvent castable) polymeric materials.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.101393
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Microcavity organic light-emitting diodes for strongly directed pure red, green, and blue emissions (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 86 (1999), S. 2407-2411 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: In this article we demonstrate strongly directed pure red, green, and blue emissions in the organic light-emitting diodes (OLEDs) with a planar microcavity defined by a pair of dielectric mirror and a metal mirror. By careful control of the cavity mode and the position of the resonance wavelength, the strong directionality in the forward direction as well as the spectral narrowing and the intensity enhancement are realized in the microcavity OLEDs. The intensity enhancements at the resonance wavelength are 1.5–5 compared to the noncavity OLEDs, and the chromaticity coordinates of the emission colors are the ideal primary colors. The experimental results are compared to theoretically calculated ones. © 1999 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.371068
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Structures and optical properties of organic/inorganic superlattices (1994)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 64 (1994), S. 1353-1355 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: A new class of superlattice materials consisting of alternating layers of organic and inorganic materials has been prepared from 8-hydroxyquinoline aluminum (Alq) and MgF2 by vacuum deposition. The Alq layer thickness in the superlattices was varied from 10 to 50 A(ring). Small-angle x-ray diffraction measurements indicate that the superlattices have very uniform layered structure throughout the entire stack, and the interfacial roughness is much smaller than 10 A(ring). From the optical absorption and photoluminescence measurements, it is found that the exciton energy shifts to higher energy with decreasing Alq layer thickness. The changes of the exciton energy could be interpreted as the confinement effects of exciton in the Alq thin layers.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.111932
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Organic electroluminescent devices fabricated using a diamine doped MgF2 thin film as a hole-transporting layer (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 66 (1995), S. 673-675 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Organic electroluminescent (EL) devices have been fabricated which have a MgF2 layer doped with N, N'-diphenyl-N, N'-bis(3-methylphenyl)-[1,1'-biphenyl]-4, 4'-diamine (TPD) as the hole- transporting layer, and the emitting layer of tris-(8-hydroxyquinoline) aluminum (Alq). For the organic EL devices, bright green emission with 2600 cd/m2 is observed at a voltage of 15 V. The luminous efficiency is about 0.3 lm/W at a current density of 100 mA/cm2. This high efficiency indicates that the diamine doped MgF2 layer plays the role of hole transport and confinement of electrons in the emitting layer. It is also found that the thermal stability of the organic EL device is higher than that of the conventional organic EL device. © 1995 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.114095
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Strongly directed single mode emission from organic electroluminescent diode with a microcavity (1996)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 68 (1996), S. 2633-2635 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The strongly directed spontaneous emission along the optical axis of an organic electroluminescent (EL) diode with a typical emitting material, tris(8-quinolinolato) aluminum, is realized with a planner microcavity structure. The structure of the microcavity EL diode is designed to have a resonance condition in which the total optical length is 3/2λ and the resonance wavelength λ is located at shorter wavelength side of a natural emission spectrum of a noncavity EL diode. © 1996 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.116205
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    High-temperature operation of an electroluminescent device fabricated using a novel triphenylamine derivative (1996)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 69 (1996), S. 878-880 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: We have fabricated thermally stable organic electroluminescent (EL) devices using a hole transporting material, a tetramer of triphenylamine, and a typical emitting material, tris (8-quinolinolato) aluminum (Alq). The organic EL devices show uniform light emission in a continuous operation up to 140 °C without breakdown. A lowering of turn-on voltage for light emission and an increase of luminous efficiency with increasing temperature are found; the significantly low turn-on voltage of 2.1 V and the high luminous efficiency of 1.25 lm/W are obtained at 130 °C. Excellent durability of continuous operation is also achieved at the high temperature. © 1996 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.117974
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...