Temat: organic light-emitting diode - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Graphene on quartz modified with rhenium oxide as a semitransparent electrode for organic electronics
Autorzy:: Krukowski, Paweł
Piskorski, Michał
Udovytska, Ruslana
Kowalczyk, Dorota A.
Lutsyk, Iaroslav
Rogala, Maciej
Dąbrowski, Paweł
Kozłowski, Witold
Łuszczyńska, Beata
Jung, Jarosław
Ulański, Jacek
Matuszek, Krzysztof
Nadolska, Aleksandra
Przybysz, Przemysław
Ryś, Wojciech
Toczek, Klaudia
Dunal, Rafał
Krempiński, Patryk
Czerwińska, Justyna
Ster, Maxime Le
Skulimowski, Marcin
Kowalczyk, Paweł J.
Powiązania:: https://bibliotekanauki.pl/articles/2174856.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:: graphene
rhenium oxide
anode
organic light-emitting diode
Opis:: The presented research shows that commercially available graphene on quartz modified with rhenium oxide meets the requirements for its use as a conductive and transparent anode in optoelectronic devices. The cluster growth of rhenium oxide enables an increase in the work function of graphene by 1.3 eV up to 5.2 eV, which guarantees an appropriate adjustment to the energy levels of organic semiconductors used in organic light-emitting diode devices.
Źródło:: Opto-Electronics Review; 2022, 30, 4; art. no. e141953
1230-3402
Pojawia się w:: Opto-Electronics Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Design of external microtextures for efficient light outcoupling in OLEDs with different preferential orientation of emission dipoles
Autorzy:: Kovačič, Milan
Powiązania:: https://bibliotekanauki.pl/articles/2074200.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:: organic light-emitting diode
light outcoupling
dipole orientation
ray tracing
optical modelling
Opis:: External light outcoupling structures provide a cost-effective and highly efficient solution for light extraction in organic light-emitting diodes. Among them, different microtextures, mainly optimized for devices with isotopically oriented emission dipoles, have been proposed as an efficient light extraction solution. In the paper, the outcoupling for a preferential orientation of emission dipoles is studied for the case of a red bottom-emitting organic light-emitting diode. Optical simulations are used to analyse the preferential orientation of dipoles in combination with three different textures, namely hexagonal array of sine-textures, three-sided pyramids, and random pyramids. It is shown that while there are minimal differences between the optimized textures, the highest external quantum efficiency of 51% is predicted by using the three-sided pyramid texture. Further improvements, by employing highly oriented dipole sources, are examined. In this case, the results show that the top outcoupling efficiencies can be achieved with the same texture shape and size, regardless of the preferred orientation of the emission dipoles. Using an optimized three-sided pyramid in combination with ideally parallel oriented dipoles, an efficiency of 62% is achievable. A detailed analysis of the optical situation inside the glass substrate, dominating external light outcoupling, is presented. Depicted results and their analysis offer a simplified further research and development of external light extraction for organic light-emitting devices with highly oriented dipole emission sources.
Źródło:: Opto-Electronics Review; 2022, 30, 2; art. no. e141542
1230-3402
Pojawia się w:: Opto-Electronics Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Effect of a weak ion beam treatment of emission layer on the top emission polymer light-emitting diode
Autorzy:: Gong, T
Gwag, J S
Powiązania:: https://bibliotekanauki.pl/articles/174367.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: organic light emitting diode
light-emitting polymer
top emission
optical device
ion beam
surface treatment
Opis:: This study examined the influence of a weakly treated emission layer on ion beam processing for the performance of top emission polymer light-emitting diodes with an invert structure (top ITO as the anode). The emission layer used in this experiment was a polymer type SY, Livilux PDY-132 provided by Merck & Co. The surface of the emission layer was modified by a low energy ion beam treatment to obtain hydrophilic functional groups and improve the wettability. As a hole transfer layer, poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS, CLEVIOS AI 4083, Heraeus) was spin-coated on the ion beam treated emission layer and showed good adhesion properties. Consequently, through such an ion beam treatment that promotes the interface properties of these two layers, a uniform light emitting area was obtained and the light intensity in a top emission polymer light-emitting diode was improved.
Źródło:: Optica Applicata; 2014, 44, 4; 567-574
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

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