Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Implementation of graphene multilayer electrodes in quantum dot light-emitting devices
Date
2015-09-01
Author
Wolff, Svenja
Jansen, Dennis
Terlinden, Hendrik
Keleştemur, Yusuf
Mertin, Wolfgang
Demir, Hilmi Volkan
Bacher, Gerd
Nannen, Ekaterina
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
91
views
7
downloads
Cite This
Graphene is a highly attractive candidate for implementation as electrodes in next-generation large-area optoelectronic devices thanks to its high electrical conductivity and high optical transparency. In this study, we show all-solution-processed quantum dot-based light-emitting devices (QD-LEDs) using graphene mono- and multilayers as transparent electrodes. Here, the effect of the number of graphene layers (up to three) on the QD-LEDs performance was studied. While the implementation of a second graphene layer was found to reduce the turn-on voltage from 2.6 to 1.8 V, a third graphene layer was observed to increase the turn-on voltage again, which is attributed to an increased roughness of the graphene layer stack.
URI
https://hdl.handle.net/11511/92823
Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
DOI
https://doi.org/10.1007/s00339-015-9304-z
Collections
Department of Metallurgical and Materials Engineering, Article
Suggestions
OpenMETU
Core
Development of hole transport transparent conductive electrodes for n-type crystalline silicon solar cells
Akdemir, Ozan; Bek, Alpan; İmer, Muhsine Bilge; Department of Micro and Nanotechnology (2018)
Conventional transparent conductive electrodes (TCEs) used in crystal silicon (c-Si) solar cells are commonly made of indium tin oxide (ITO) which provides low sheet resistance and high transparency. However, due to indium scarcity, ITO layers increase the fabrication cost; thus, alternative TCEs, such as fluorine-doped tin oxide (FTO), zinc oxide (ZnO), metal nanowires and Oxide/Metal/Oxide (OMO) multilayers, are being investigated. Conventional solar cells also make use of doped layers, to create the junc...
Analysis of reconstruction performance of magnetic resonance conductivity tensor imaging (MRCTI) using simulated measurements
DEĞİRMENCİ, EVREN; Eyüboğlu, Behçet Murat (2017-01-01)
Magnetic resonance conductivity tensor imaging (MRCTI) was proposed recently to produce electrical conductivity images of anisotropic tissues. Similar to magnetic resonance electrical impedance tomography (MREIT), MRCTI uses magnetic field and boundary potential measurements obtained utilizing magnetic resonance imaging techniques. MRCTI reconstructs tensor images of anisotropic conductivity whereas MREIT reconstructs isotropic conductivity images. In this study, spatial resolution and linearity of five rec...
Magnetic Resonance - Electrical Impedance Tomography (MR-EIT) Research at METU
Eyüboğlu, Behçet Murat (2006-09-01)
Following development of magnetic resonance current density imaging (MRCDI), magnetic resonance - electrical impedance tomography (MR-EIT) has emerged as a promising approach to produce high resolution conductivity images. Electric current applied to a conductor results in a potential field and a magnetic flux density distribution. Using a magnetic resonance imaging (MRI) system, the magnetic flux density distribution can be reconstructed as in MRCDI. The flux density is related to the current density distr...
Highly Sensitive and Tunable Fano-like Rod-Type Silicon Photonic Crystal Refractive Index Sensor
Kılıç, Selahattin Cem; Kocaman, Serdar (2021-01-01)
IEEEA highly sensitive and tunable 2D rod-type silicon photonic crystal cavity based biosensor configuration has been designed and numerically analyzed. The structure is optimized so that the light-matter interaction is maximized in the cavity region. Out-of-plane light confinement is achieved by sandwiching the rods between metal plates, and tuning is achieved by introducing an air-gap between on top of the rods and the metal plate. A single rod is positioned in the middle of the waveguide so that the cavi...
Implementation of a data acquisition system for contactless conductivity imaging
ULKER, B; Gençer, Nevzat Güneri (2001-10-28)
A data acquisition system is realized to image electrical conductivity of biological tissues via contactless measurements. This system uses magnetic excitation to induce currents inside the body and measures the magnetic fields of the induced currents. A magnetically coupled differential coil system is scanned on the conductive object by a computer controlled scanning system. A data acquisition system is constructed using a PC controlled lock-in amplifier. 1.64V secondary voltage difference can be measured ...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
S. Wolff et al., “Implementation of graphene multilayer electrodes in quantum dot light-emitting devices,”
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
, vol. 120, no. 3, pp. 1197–1203, 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/92823.