AC-driven, color-and brightness-tunable organic light-emitting diodes constructed from an electron only device

Date
2013
Advisor
Instructor
Source Title
Organic Electronics: physics, materials, applications
Print ISSN
15661199
Electronic ISSN
Publisher
Volume
14
Issue
12
Pages
3195 - 3200
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
Abstract

In this paper, a color- and brightness-tunable organic light-emitting diode (OLED) is reported. This OLED was realized by inserting a charge generation layer into an electron only device to form an n-i-p-i-n structure. It is shown that, by changing the polarity of applied voltage, only the p-i-n junction operated under positive bias can emit light and, by applying an AC voltage, emission from both junctions was realized. It is also shown that, by using a combination of blue- and red-emiting layers in two p-i-n junctions, both the color and brightness of the resulting white OLED can be tuned independently by changing the positive and negative amplitudes of the AC voltage. © 2013 Elsevier B.V. All rights reserved.

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Keywords
AC driving, Alternating current, Charge generation layer, Color tunable, Organic light-emitting diode, Transition metal oxide, Ac-driving, Alternating current, Charge-generation layers, Color tunable, Organic light emitting diodes(OLEDs), Transition-metal oxides, Electronic equipment, Luminance, Organic light emitting diodes (OLED), Color
Citation
Published Version (Please cite this version)