White emission from nano-structured top-emitting organic light-emitting diodes based on a blue emitting layer

Jin Hyun Woo; Jin Park Jung; Hyuk Im Sang; Ok O. Park; Doo Chin Byung

doi:10.1088/0022-3727/46/9/095107

White emission from nano-structured top-emitting organic light-emitting diodes based on a blue emitting layer

Jin Hyun Woo^*, Jin Park Jung, Hyuk Im Sang, Ok O. Park, Doo Chin Byung

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We demonstrated that white emission can be obtained from nano-structured top-emitting organic light-emitting diodes (TEOLEDs) based on a blue emitting layer (EML). The nano-structured TEOLEDs were fabricated on nano-patterned substrates, in which both optical micro-cavity and scattering effects occur simultaneously. Due to the combination of these two effects, the electroluminescence spectra of the nano-structured device with a blue EML exhibited not only blue but also yellow colours, which corresponded to the intrinsic emission of the EML and the resonant emission of the micro-cavity effect. Consequently, it was possible to produce white emission from nano-structured TEOLEDs without employing a multimode micro-cavity. The intrinsic emission wavelength can be varied by altering the dopant used for the EML. Furthermore, the emissive characteristics turned out to be strongly dependent on the nano-pattern sizes of the nano-structured devices.

Original language	English
Article number	095107
Journal	Journal Physics D: Applied Physics
Volume	46
Issue number	9
DOIs	https://doi.org/10.1088/0022-3727/46/9/095107
State	Published - 6 Mar 2013
Externally published	Yes

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title = "White emission from nano-structured top-emitting organic light-emitting diodes based on a blue emitting layer",

abstract = "We demonstrated that white emission can be obtained from nano-structured top-emitting organic light-emitting diodes (TEOLEDs) based on a blue emitting layer (EML). The nano-structured TEOLEDs were fabricated on nano-patterned substrates, in which both optical micro-cavity and scattering effects occur simultaneously. Due to the combination of these two effects, the electroluminescence spectra of the nano-structured device with a blue EML exhibited not only blue but also yellow colours, which corresponded to the intrinsic emission of the EML and the resonant emission of the micro-cavity effect. Consequently, it was possible to produce white emission from nano-structured TEOLEDs without employing a multimode micro-cavity. The intrinsic emission wavelength can be varied by altering the dopant used for the EML. Furthermore, the emissive characteristics turned out to be strongly dependent on the nano-pattern sizes of the nano-structured devices.",

author = "Woo, {Jin Hyun} and Jung, {Jin Park} and Sang, {Hyuk Im} and Park, {Ok O.} and Byung, {Doo Chin}",

year = "2013",

month = mar,

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doi = "10.1088/0022-3727/46/9/095107",

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TY - JOUR

T1 - White emission from nano-structured top-emitting organic light-emitting diodes based on a blue emitting layer

AU - Woo, Jin Hyun

AU - Jung, Jin Park

AU - Sang, Hyuk Im

AU - Park, Ok O.

AU - Byung, Doo Chin

PY - 2013/3/6

Y1 - 2013/3/6

N2 - We demonstrated that white emission can be obtained from nano-structured top-emitting organic light-emitting diodes (TEOLEDs) based on a blue emitting layer (EML). The nano-structured TEOLEDs were fabricated on nano-patterned substrates, in which both optical micro-cavity and scattering effects occur simultaneously. Due to the combination of these two effects, the electroluminescence spectra of the nano-structured device with a blue EML exhibited not only blue but also yellow colours, which corresponded to the intrinsic emission of the EML and the resonant emission of the micro-cavity effect. Consequently, it was possible to produce white emission from nano-structured TEOLEDs without employing a multimode micro-cavity. The intrinsic emission wavelength can be varied by altering the dopant used for the EML. Furthermore, the emissive characteristics turned out to be strongly dependent on the nano-pattern sizes of the nano-structured devices.

AB - We demonstrated that white emission can be obtained from nano-structured top-emitting organic light-emitting diodes (TEOLEDs) based on a blue emitting layer (EML). The nano-structured TEOLEDs were fabricated on nano-patterned substrates, in which both optical micro-cavity and scattering effects occur simultaneously. Due to the combination of these two effects, the electroluminescence spectra of the nano-structured device with a blue EML exhibited not only blue but also yellow colours, which corresponded to the intrinsic emission of the EML and the resonant emission of the micro-cavity effect. Consequently, it was possible to produce white emission from nano-structured TEOLEDs without employing a multimode micro-cavity. The intrinsic emission wavelength can be varied by altering the dopant used for the EML. Furthermore, the emissive characteristics turned out to be strongly dependent on the nano-pattern sizes of the nano-structured devices.

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DO - 10.1088/0022-3727/46/9/095107

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SN - 0022-3727

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JO - Journal Physics D: Applied Physics

JF - Journal Physics D: Applied Physics

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M1 - 095107

ER -

White emission from nano-structured top-emitting organic light-emitting diodes based on a blue emitting layer

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