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

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

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 jun...

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Bibliographic Details
Main Authors: Zhao, Yongbiao, Chen, Rui, Gao, Yuan, Leck, Kheng Swee, Yang, Xuyong, Liu, Shuwei, Abiyasa, Agus Putu, Divayana, Yoga, Mutlugun, Evren, Tan, Swee Tiam, Sun, Handong, Demir, Hilmi Volkan, Sun, Xiao Wei
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2016
Subjects:
Organic light-emitting diode
Alternating current
Online Access:https://hdl.handle.net/10356/81794
http://hdl.handle.net/10220/40972
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Institution: Nanyang Technological University
Language: English
Description
Summary: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.

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