Enhanced light extraction efficiency in organic light-emitting diode with randomly dispersed nanopattern

Yang Doo Kim; Kyung Hoon Han; Young Hoon Sung; Jung Bum Kim; Hak Jong Choi; Heon Lee; Jang Joo Kim

doi:10.1364/OL.40.005838

Enhanced light extraction efficiency in organic light-emitting diode with randomly dispersed nanopattern

Yang Doo Kim, Kyung Hoon Han, Young Hoon Sung, Jung Bum Kim, Hak Jong Choi, Heon Lee, Jang Joo Kim

Department of Materials Science and Engineering

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

8 Citations (Scopus)

Abstract

An optical scattering layer composed of randomly dispersed nanopatterns (RDNPs) was introduced in an organic lightemitting diode (OLED) to increase the out-coupling efficiency. An RDNP was fabricated by direct printing on a glass substrate. Owing to its low haze and high transmittance, the RDNP acted as a light extraction layer in the OLED. The RDNP OLEDs showed higher current density and luminance than the reference devices at the same voltage. The current and power efficiencies of the RDNP OLED increased by 25% and 34%, respectively, without electrical degradation. Furthermore, the RDNP devices achieved an external quantum efficiency of 27.5% at 1 mA/cm².

Original language	English
Pages (from-to)	5838-5841
Number of pages	4
Journal	Optics Letters
Volume	40
Issue number	24
DOIs	https://doi.org/10.1364/OL.40.005838
Publication status	Published - 2015

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.40.005838

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title = "Enhanced light extraction efficiency in organic light-emitting diode with randomly dispersed nanopattern",

abstract = "An optical scattering layer composed of randomly dispersed nanopatterns (RDNPs) was introduced in an organic lightemitting diode (OLED) to increase the out-coupling efficiency. An RDNP was fabricated by direct printing on a glass substrate. Owing to its low haze and high transmittance, the RDNP acted as a light extraction layer in the OLED. The RDNP OLEDs showed higher current density and luminance than the reference devices at the same voltage. The current and power efficiencies of the RDNP OLED increased by 25% and 34%, respectively, without electrical degradation. Furthermore, the RDNP devices achieved an external quantum efficiency of 27.5% at 1 mA/cm2.",

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T1 - Enhanced light extraction efficiency in organic light-emitting diode with randomly dispersed nanopattern

AU - Kim, Yang Doo

AU - Han, Kyung Hoon

AU - Sung, Young Hoon

AU - Kim, Jung Bum

AU - Choi, Hak Jong

AU - Lee, Heon

AU - Kim, Jang Joo

PY - 2015

Y1 - 2015

N2 - An optical scattering layer composed of randomly dispersed nanopatterns (RDNPs) was introduced in an organic lightemitting diode (OLED) to increase the out-coupling efficiency. An RDNP was fabricated by direct printing on a glass substrate. Owing to its low haze and high transmittance, the RDNP acted as a light extraction layer in the OLED. The RDNP OLEDs showed higher current density and luminance than the reference devices at the same voltage. The current and power efficiencies of the RDNP OLED increased by 25% and 34%, respectively, without electrical degradation. Furthermore, the RDNP devices achieved an external quantum efficiency of 27.5% at 1 mA/cm2.

AB - An optical scattering layer composed of randomly dispersed nanopatterns (RDNPs) was introduced in an organic lightemitting diode (OLED) to increase the out-coupling efficiency. An RDNP was fabricated by direct printing on a glass substrate. Owing to its low haze and high transmittance, the RDNP acted as a light extraction layer in the OLED. The RDNP OLEDs showed higher current density and luminance than the reference devices at the same voltage. The current and power efficiencies of the RDNP OLED increased by 25% and 34%, respectively, without electrical degradation. Furthermore, the RDNP devices achieved an external quantum efficiency of 27.5% at 1 mA/cm2.

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JO - Optics Letters

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Enhanced light extraction efficiency in organic light-emitting diode with randomly dispersed nanopattern

Abstract

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