Polymeric tandem organic light-emitting diodes using a self-organized interfacial layer

Seung Yoon Ryu; Jong Tae Kim; Joo Hyon Noh; Byoung Har Hwang; Chang Su Kim; Sung Jin Jo; Hyeon Seok Hwang; Seok Ju Kang; Hong Koo Baik; Chang Ho Lee; Seung Yong Song; Se Jong Lee

doi:10.1063/1.2894072

Polymeric tandem organic light-emitting diodes using a self-organized interfacial layer

Seung Yoon Ryu, Jong Tae Kim, Joo Hyon Noh, Byoung Har Hwang, Chang Su Kim, Sung Jin Jo, Hyeon Seok Hwang, Seok Ju Kang, Hong Koo Baik, Chang Ho Lee, Seung Yong Song, Se Jong Lee

School of Energy Engineering

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

11 Scopus citations

Abstract

The authors have demonstrated efficient polymeric tandem organic light-emitting diodes (OLEDs) with a self-organized interfacial layer, which was formed by differences in chemical surface energy. Hydrophilic poly(styrene sulfonate)-doped poly(3,4-ethylene dioxythiophene) (PEDOT:PSS) was spin coated onto the hydrophobic poly(9,9-dyoctilfluorene) (PFO) surface and a PEDOT:PSS bubble or dome was built as an interfacial layer. The barrier heights of PEDOT:PSS and PFO in the two-unit tandem OLED induced a charge accumulation at the interface in the heterojunction and thereby created exciton recombination at a much higher level than in the one-unit reference. This effect was confirmed in both the hole only and the electron only devices.

Original language	English
Article number	103301
Journal	Applied Physics Letters
Volume	92
Issue number	10
DOIs	https://doi.org/10.1063/1.2894072
State	Published - 2008

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title = "Polymeric tandem organic light-emitting diodes using a self-organized interfacial layer",

abstract = "The authors have demonstrated efficient polymeric tandem organic light-emitting diodes (OLEDs) with a self-organized interfacial layer, which was formed by differences in chemical surface energy. Hydrophilic poly(styrene sulfonate)-doped poly(3,4-ethylene dioxythiophene) (PEDOT:PSS) was spin coated onto the hydrophobic poly(9,9-dyoctilfluorene) (PFO) surface and a PEDOT:PSS bubble or dome was built as an interfacial layer. The barrier heights of PEDOT:PSS and PFO in the two-unit tandem OLED induced a charge accumulation at the interface in the heterojunction and thereby created exciton recombination at a much higher level than in the one-unit reference. This effect was confirmed in both the hole only and the electron only devices.",

author = "Ryu, {Seung Yoon} and Kim, {Jong Tae} and Noh, {Joo Hyon} and Hwang, {Byoung Har} and Kim, {Chang Su} and Jo, {Sung Jin} and Hwang, {Hyeon Seok} and Kang, {Seok Ju} and Baik, {Hong Koo} and Lee, {Chang Ho} and Song, {Seung Yong} and Lee, {Se Jong}",

year = "2008",

doi = "10.1063/1.2894072",

language = "English",

volume = "92",

journal = "Applied Physics Letters",

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T1 - Polymeric tandem organic light-emitting diodes using a self-organized interfacial layer

AU - Ryu, Seung Yoon

AU - Kim, Jong Tae

AU - Noh, Joo Hyon

AU - Hwang, Byoung Har

AU - Kim, Chang Su

AU - Jo, Sung Jin

AU - Hwang, Hyeon Seok

AU - Kang, Seok Ju

AU - Baik, Hong Koo

AU - Lee, Chang Ho

AU - Song, Seung Yong

AU - Lee, Se Jong

PY - 2008

Y1 - 2008

N2 - The authors have demonstrated efficient polymeric tandem organic light-emitting diodes (OLEDs) with a self-organized interfacial layer, which was formed by differences in chemical surface energy. Hydrophilic poly(styrene sulfonate)-doped poly(3,4-ethylene dioxythiophene) (PEDOT:PSS) was spin coated onto the hydrophobic poly(9,9-dyoctilfluorene) (PFO) surface and a PEDOT:PSS bubble or dome was built as an interfacial layer. The barrier heights of PEDOT:PSS and PFO in the two-unit tandem OLED induced a charge accumulation at the interface in the heterojunction and thereby created exciton recombination at a much higher level than in the one-unit reference. This effect was confirmed in both the hole only and the electron only devices.

AB - The authors have demonstrated efficient polymeric tandem organic light-emitting diodes (OLEDs) with a self-organized interfacial layer, which was formed by differences in chemical surface energy. Hydrophilic poly(styrene sulfonate)-doped poly(3,4-ethylene dioxythiophene) (PEDOT:PSS) was spin coated onto the hydrophobic poly(9,9-dyoctilfluorene) (PFO) surface and a PEDOT:PSS bubble or dome was built as an interfacial layer. The barrier heights of PEDOT:PSS and PFO in the two-unit tandem OLED induced a charge accumulation at the interface in the heterojunction and thereby created exciton recombination at a much higher level than in the one-unit reference. This effect was confirmed in both the hole only and the electron only devices.

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U2 - 10.1063/1.2894072

DO - 10.1063/1.2894072

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VL - 92

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 10

M1 - 103301

ER -

Polymeric tandem organic light-emitting diodes using a self-organized interfacial layer

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