Main Page
About Science
Faculty Deanship
Letter of Dean
Overview of Deanship
Vice Deans
Vice Dean
Letter of Vice-dean
Overview of Vice-deanship
Vice Dean for Graduate Studies
Letter of Vice Dean for Graduate Studies
Overview of Vice Dean of Postgraduate Studies
Research and Innovation Unit
Vice Dean for Girls Campus
Faculty Management
Letter of Managing Director-Boys Campus
Letter of Managing Director-Girls Campus
Overview of Management
Educational Affairs
Males Campus
Staff
Females Campus
Contact Us
Research
عربي
English
About
Admission
Academic
Research and Innovations
University Life
E-Services
Search
Faculty of Sciences
Document Details
Document Type
:
Article In Journal
Document Title
:
Exciton quenching at PEDOT:PSS anode in polymer blue-lightemitting diodes
Exciton quenching at PEDOT:PSS anode in polymer blue-lightemitting diodes
Subject
:
physics
Document Language
:
English
Abstract
:
The quenching of excitons at the poly(3,4-ethylenedioxythiophene): poly(styrenesulfonic acid) (PEDOT:PSS) anode in blue polyalkoxyspirobifluorene-arylamine polymer light-emitting diodes is investigated. Due to the combination of a higher electron mobility and the presence of electron traps, the recombination zone shifts from the cathode to the anode with increasing voltage. The exciton quenching at the anode at higher voltages leads to an efficiency roll-off. The voltage dependence of the luminous efficiency is reproduced by a drift-diffusion model under the condition that quenching of excitons at the PEDOT: PSS anode and metallic cathode is of equal strength. Experimentally, the efficiency roll-off at high voltages due to anode quenching is eliminated by the use of an electronblocking layer between the anode and the light-emitting polymer
ISSN
:
1089-7550
Journal Name
:
JOURNAL OF APPLIED PHYSICS
Volume
:
116
Issue Number
:
22
Publishing Year
:
1435 AH
2014 AD
Article Type
:
Article
Added Date
:
Thursday, July 27, 2017
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
D Abbaszadeh
Abbaszadeh, D
Investigator
Doctorate
G. A. H Wetzelaer,
Wetzelaer,, G. A. H
Researcher
Doctorate
H. T Nicolai
Nicolai, H. T
Researcher
Doctorate
P. W. M. Blom
Blom, P. W. M.
Researcher
Doctorate
blom@mpip-mainz.mpg.de
Files
File Name
Type
Description
42285.pdf
pdf
Back To Researches Page