Ultrathin, lightweight and flexible organic light-emitting devices with a high light outcoupling efficiency

Xiaheng Huang; Yue Qu; Dejiu Fan; Jongchan Kim; Stephen R. Forrest

doi:10.1016/j.orgel.2019.03.040

Ultrathin, lightweight and flexible organic light-emitting devices with a high light outcoupling efficiency

Xiaheng Huang, Yue Qu, Dejiu Fan, Jongchan Kim, Stephen R. Forrest

Department of Integrated Display Engineering

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

Abstract

High-efficiency, flexible organic light-emitting diodes (OLEDs) are of interest for display and lighting applications. However, they often suffer from inefficient light extraction, and many outcoupling schemes are incompatible with flexible OLEDs. Here, we demonstrate a corrugated, ultrathin (10 μm), light-weight (20 g/m²), and flexible OLED on a polychloro-p-xylylene (parylene) substrate. A visible-wavelength-scale random corrugation pattern is imprinted on both surfaces of the parylene substrate that efficiently outcouples trapped substrate, waveguide and surface plasmon modes. A green phosphorescent OLED fabricated on a corrugated parylene substrate (CP-OLED) has an external quantum efficiency of 28 ± 2% compared with 21 ± 1% for devices on a conventional flat glass substrate. The CP-OLED shows a Lambertian intensity profile whose spectra are unchanged at different viewing angles. The very thin and flexible substrates offer a solution for foldable displays over very small radii for use in mobile devices and medical applications.

Original language	English
Pages (from-to)	297-300
Number of pages	4
Journal	Organic Electronics
Volume	69
DOIs	https://doi.org/10.1016/j.orgel.2019.03.040
Publication status	Published - 2019 Jun

Bibliographical note

Funding Information:
The authors acknowledge the financial support from the US Department of Energy, Solid-State Lighting program under Award DE-EE0007626 and Universal Display Corporation . Part of this work was performed at the Lurie Nanofabrication Facility at the University of Michigan.

Publisher Copyright:
© 2019 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
Chemistry(all)
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

Access to Document

10.1016/j.orgel.2019.03.040

Cite this

@article{7798daaf9ac04242af899ba43706b1e4,

title = "Ultrathin, lightweight and flexible organic light-emitting devices with a high light outcoupling efficiency",

abstract = "High-efficiency, flexible organic light-emitting diodes (OLEDs) are of interest for display and lighting applications. However, they often suffer from inefficient light extraction, and many outcoupling schemes are incompatible with flexible OLEDs. Here, we demonstrate a corrugated, ultrathin (10 μm), light-weight (20 g/m2), and flexible OLED on a polychloro-p-xylylene (parylene) substrate. A visible-wavelength-scale random corrugation pattern is imprinted on both surfaces of the parylene substrate that efficiently outcouples trapped substrate, waveguide and surface plasmon modes. A green phosphorescent OLED fabricated on a corrugated parylene substrate (CP-OLED) has an external quantum efficiency of 28 ± 2% compared with 21 ± 1% for devices on a conventional flat glass substrate. The CP-OLED shows a Lambertian intensity profile whose spectra are unchanged at different viewing angles. The very thin and flexible substrates offer a solution for foldable displays over very small radii for use in mobile devices and medical applications.",

author = "Xiaheng Huang and Yue Qu and Dejiu Fan and Jongchan Kim and Forrest, {Stephen R.}",

note = "Funding Information: The authors acknowledge the financial support from the US Department of Energy, Solid-State Lighting program under Award DE-EE0007626 and Universal Display Corporation . Part of this work was performed at the Lurie Nanofabrication Facility at the University of Michigan. Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = jun,

doi = "10.1016/j.orgel.2019.03.040",

language = "English",

volume = "69",

pages = "297--300",

journal = "Organic Electronics: physics, materials, applications",

issn = "1566-1199",

publisher = "Elsevier",

}

TY - JOUR

T1 - Ultrathin, lightweight and flexible organic light-emitting devices with a high light outcoupling efficiency

AU - Huang, Xiaheng

AU - Qu, Yue

AU - Fan, Dejiu

AU - Kim, Jongchan

AU - Forrest, Stephen R.

N1 - Funding Information: The authors acknowledge the financial support from the US Department of Energy, Solid-State Lighting program under Award DE-EE0007626 and Universal Display Corporation . Part of this work was performed at the Lurie Nanofabrication Facility at the University of Michigan. Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/6

Y1 - 2019/6

N2 - High-efficiency, flexible organic light-emitting diodes (OLEDs) are of interest for display and lighting applications. However, they often suffer from inefficient light extraction, and many outcoupling schemes are incompatible with flexible OLEDs. Here, we demonstrate a corrugated, ultrathin (10 μm), light-weight (20 g/m2), and flexible OLED on a polychloro-p-xylylene (parylene) substrate. A visible-wavelength-scale random corrugation pattern is imprinted on both surfaces of the parylene substrate that efficiently outcouples trapped substrate, waveguide and surface plasmon modes. A green phosphorescent OLED fabricated on a corrugated parylene substrate (CP-OLED) has an external quantum efficiency of 28 ± 2% compared with 21 ± 1% for devices on a conventional flat glass substrate. The CP-OLED shows a Lambertian intensity profile whose spectra are unchanged at different viewing angles. The very thin and flexible substrates offer a solution for foldable displays over very small radii for use in mobile devices and medical applications.

AB - High-efficiency, flexible organic light-emitting diodes (OLEDs) are of interest for display and lighting applications. However, they often suffer from inefficient light extraction, and many outcoupling schemes are incompatible with flexible OLEDs. Here, we demonstrate a corrugated, ultrathin (10 μm), light-weight (20 g/m2), and flexible OLED on a polychloro-p-xylylene (parylene) substrate. A visible-wavelength-scale random corrugation pattern is imprinted on both surfaces of the parylene substrate that efficiently outcouples trapped substrate, waveguide and surface plasmon modes. A green phosphorescent OLED fabricated on a corrugated parylene substrate (CP-OLED) has an external quantum efficiency of 28 ± 2% compared with 21 ± 1% for devices on a conventional flat glass substrate. The CP-OLED shows a Lambertian intensity profile whose spectra are unchanged at different viewing angles. The very thin and flexible substrates offer a solution for foldable displays over very small radii for use in mobile devices and medical applications.

UR - http://www.scopus.com/inward/record.url?scp=85063620389&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85063620389&partnerID=8YFLogxK

U2 - 10.1016/j.orgel.2019.03.040

DO - 10.1016/j.orgel.2019.03.040

M3 - Article

AN - SCOPUS:85063620389

SN - 1566-1199

VL - 69

SP - 297

EP - 300

JO - Organic Electronics: physics, materials, applications

JF - Organic Electronics: physics, materials, applications

ER -

Ultrathin, lightweight and flexible organic light-emitting devices with a high light outcoupling efficiency

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this