Emission characteristics of a solution processed, single layer white organic light emitting diode için kapak resmi
Emission characteristics of a solution processed, single layer white organic light emitting diode
Başlık:
Emission characteristics of a solution processed, single layer white organic light emitting diode
Yazar:
Bozkuş, Volkan, author.
Yazar Ek Girişi:
Fiziksel Tanımlama:
xii, 49 leaves: charts;+ 1 computer laser optical disc.
Özet:
White organic light emitting diodes (WOLEDs) are getting more attention day by day because of their some superior properties like viewing angle, refresh rate, flexibility, easy production process and consequently relatively cost-effective natures. Within the scope of this thesis, WOLED has been prepared and characterized by using the single emitter layer prepared by solution process method. In the emission layer, the host material is used for both obtaining the blue region of the visible spectrum and for efficient energy transfer to the green and orange-red guest material. Poly(N-vinylcarbazole) (PVK): 2-(4-Biphenylyl)-5-phenyl-1,3,4-oxadiazole (PBD) or 1,3-bis[(4-tert-butylphenyl)-1,3,4-oxadiazolyl] phenylene (OXD-7) matrices are used as host for orange-red emitting material of N,N'-bis(2-ethylhexyl)perylene-3,4,9,10-dicarboxylic diimide (PDI) and green emitting material of perylene-3,4,9,10-tetracarboxy tetrabutylester (PTE). Electron and hole mobility, L-V-J characteristics and morphologies of two different host matrix of PVK:PBD and PVK:OXD-7 were examined. As a result of these evaluations, the appropriate host was determined as PVK:PBD. Host:PTE and Host:PDI emission characteristics were examined and exciplex, electroplex formations were detected. After, Host:PTE:PDI configuration were discussed and high white light properties of optimized WOLED are displayed CIE 1931 coordinates (x, y) of (0.34, 0.36), correlated colour temperature of 4916 K and CRI of 96. Finally, lethal time 70 of the latest devices was examined.
Tek Biçim Eser Adı:
Thesis (Master)--İzmir Institute of Technology:Photonics.

İzmir Institute of Technology: Photonics--Thesis (Master).
Elektronik Erişim:
Access to Electronic Versiyon.
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