Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6375
Title: Controlling the distribution of oxygen functionalities on GO and utilization of PEDOT:PSS-GO composite as hole injection layer of a solution processed blue OLED
Authors: Diker, Halide
Durmaz, Gamze Belkis
Bozkurt, Hakan
Yeşil, Fatih
Varlıklı, Canan
Varlıklı, Canan
Keywords: Chemically oxidized graphene
Graphene oxide
Organic light emitting diodes
Particle size
PEDOT:PSS-GO composite
Issue Date: Apr-2017
Publisher: Elsevier Ltd.
Source: Diker, H., Durmaz, G. B., Bozkurt, H., Yeşil, F., and Varlıklı, C. (2017). Controlling the distribution of oxygen functionalities on GO and utilization of PEDOT:PSS-GO composite as hole injection layer of a solution processed blue OLED. Current Applied Physics, 17(4), 565-572. doi:10.1016/j.cap.2017.02.002
Abstract: Graphene oxide (GO) was synthesis by Tour method. Particle size distribution effects of raw graphite on the resulting structural, morphological, optical and electrical properties of GO samples and their poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composites are studied for the graphite particle distributions of <150, 45–75 and 25–45 μm. It is determined that particle size of raw graphite have an impact on oxidation degree, the chemical nature of oxygen functional groups on GO and it also affects the lateral size of obtained GO. PEDOT:PSS-GO composites are utilized as hole injection layer (HIL) in a solution process blue organic light emitting diode. Presence of GO caused negative differential resistance (NDR) and NDR intensity was decreased with the decrease in lateral size of GO, increase in the graphite particle size and carboxyl% of obtained GO. All PEDOT:PSS-GO composite based devices presented better performance than the bare PEDOT:PSS based reference device. The maximum luminous and external quantum efficiency values of the device that contain HIL of PEDOT:PSS-GO(150) were more than 40% and 50% higher than that of the reference, respectively. Two folds of increase in these performance values were able to be reached with the concentration optimization of GO/150 in PEDOT:PSS.
URI: http://doi.org/10.1016/j.cap.2017.02.002
http://hdl.handle.net/11147/6375
ISSN: 1567-1739
1567-1739
1878-1675
Appears in Collections:Photonics / Fotonik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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