Display process compatible accurate graphene patterning for OLED applications

Jin Wook Shin; Jun Han Han; Hyunsu Cho; Jaehyun Moon; Byoung Hwa Kwon; Seungmin Cho; Taeshik Yoon; Taek Soo Kim; Maki Suemitsu; Jeong Ik Lee; Nam Sung Cho

doi:10.1088/2053-1583/aa9cae

Display process compatible accurate graphene patterning for OLED applications

Jin Wook Shin, Jun Han Han, Hyunsu Cho, Jaehyun Moon, Byoung Hwa Kwon, Seungmin Cho, Taeshik Yoon, Taek Soo Kim, Maki Suemitsu, Jeong Ik Lee, Nam Sung Cho

Information Devices Division

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

12 Citations (Scopus)

Abstract

Graphene film can be used as transparent electrodes in display and optoelectronic applications. However, achieving residue free graphene film pixel arrays with geometrical precision on large area has been a difficult challenge. By utilizing the liquid bridging concept, we realized photolithographic patterning of graphene film with dimensional correctness and absence of surface contaminant. On a glass substrate of 100 × 100 mm² size, we demonstrate our patterning method to fabricate an addressable two-color OLED module of which graphene film pixel size is 170 × 300 μm². Our results strongly suggest graphene film as a serviceable component in commercial display products. The flexible and foldable display applications are expected to be main beneficiaries of our method.

Original language	English
Article number	014003
Journal	2D Materials
Volume	5
Issue number	1
DOIs	https://doi.org/10.1088/2053-1583/aa9cae
Publication status	Published - 2018 Jan

Keywords

graphene
integrated module
liquid bridging
organic light emitting diode
patterning

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1088/2053-1583/aa9cae

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Cite this

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title = "Display process compatible accurate graphene patterning for OLED applications",

abstract = "Graphene film can be used as transparent electrodes in display and optoelectronic applications. However, achieving residue free graphene film pixel arrays with geometrical precision on large area has been a difficult challenge. By utilizing the liquid bridging concept, we realized photolithographic patterning of graphene film with dimensional correctness and absence of surface contaminant. On a glass substrate of 100 × 100 mm2 size, we demonstrate our patterning method to fabricate an addressable two-color OLED module of which graphene film pixel size is 170 × 300 μm2. Our results strongly suggest graphene film as a serviceable component in commercial display products. The flexible and foldable display applications are expected to be main beneficiaries of our method.",

keywords = "graphene, integrated module, liquid bridging, organic light emitting diode, patterning",

author = "Shin, {Jin Wook} and Han, {Jun Han} and Hyunsu Cho and Jaehyun Moon and Kwon, {Byoung Hwa} and Seungmin Cho and Taeshik Yoon and Kim, {Taek Soo} and Maki Suemitsu and Lee, {Jeong Ik} and Cho, {Nam Sung}",

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AU - Shin, Jin Wook

AU - Han, Jun Han

AU - Cho, Hyunsu

AU - Moon, Jaehyun

AU - Kwon, Byoung Hwa

AU - Cho, Seungmin

AU - Yoon, Taeshik

AU - Kim, Taek Soo

AU - Suemitsu, Maki

AU - Lee, Jeong Ik

AU - Cho, Nam Sung

PY - 2018/1

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AB - Graphene film can be used as transparent electrodes in display and optoelectronic applications. However, achieving residue free graphene film pixel arrays with geometrical precision on large area has been a difficult challenge. By utilizing the liquid bridging concept, we realized photolithographic patterning of graphene film with dimensional correctness and absence of surface contaminant. On a glass substrate of 100 × 100 mm2 size, we demonstrate our patterning method to fabricate an addressable two-color OLED module of which graphene film pixel size is 170 × 300 μm2. Our results strongly suggest graphene film as a serviceable component in commercial display products. The flexible and foldable display applications are expected to be main beneficiaries of our method.

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KW - patterning

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