eprintid: 2922
rev_number: 8
eprint_status: archive
userid: 284
dir: disk0/00/00/29/22
datestamp: 2018-02-06 06:47:38
lastmod: 2018-02-06 06:48:01
status_changed: 2018-02-06 06:47:38
type: article
metadata_visibility: show
creators_name: Nguyen, Kien Cuong
creators_id: cuongnk@vnu.edu.vn
corp_creators: VNU University of Engineering & Technology (UET), 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam
title: Study on current–voltage characteristics of OLEDs using
Alq3 as the electron transport layer
ispublished: pub
subjects: Phys
divisions: fac_physic
abstract: This paper describes changes in current-voltage (I-V) characteristic of an organic lightemitting
device (OLED) stacked as a multilayer of ITO/MEH-PPV/Alq3/Al. The ordered, stacked
ITO/MEH-PPV/Alq3/Al multi-layers were fabricated by spin-coating and thermal vacuum
evaporation methods. First, dissolved MEH-PPV solution was spin-coated on ITO-electrodes that
had been covered on a glass-slide. Subsequently, an Alq3 layer was evaporated thermally on the
MEH-PPV-coated layer. Finally, an Al-electrode was evaporated also on the electron transport
layer. UV-vis absorption and photoluminescent characterization of the MEH-PPV and Alq3 layer
as well as their surface images were performed. All spectra obtained revealed the MEH-PPV and Alq3 were deposited as given structure. The I-V characteristics show the present of the Alq3-electron transport layer deposited between the MEH-PPV emissive layer and Al-cathode could enhance current-voltage characteristic reducing the threshold voltage and turn-on voltage.

Keywords: UV-vis absorption, photoluminescence, electron transport layer, current-voltage characteristics.
date: 2011
date_type: published
publisher: VNU
official_url: https://js.vnu.edu.vn/MaP/article/view/1527
contact_email: cuongnk@vnu.edu.vn
full_text_status: public
publication: VNU Jounal of science, Mathermatics - Physics
volume: 27
number: 3
pagerange: 174-180
refereed: TRUE
issn: 0866-8612
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funders: VNU
projects: QG.10.42
citation:   Nguyen, Kien Cuong  (2011) Study on current–voltage characteristics of OLEDs using Alq3 as the electron transport layer.  VNU Jounal of science, Mathermatics - Physics, 27  (3).   pp. 174-180.  ISSN 0866-8612     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2922/1/2011-paper-NKCuong.pdf