Novel techniques in fabricating more efficient and brighter organic electroluminescent devices

Ghassan E. Jabbour, Sean E. Shaheen, Yutaka Kawabe, Michael M. Morrell, Seong Jin Cho, Jia Fu Wang, Bernard Kippelen, Nasser N Peyghambarian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In this paper, we present two techniques for fabricating efficient and bright organic light emitting devices. The first technique allows for an enhancement in the electron injection process. This is accomplished through inserting a layer of LiF with appropriate thickness between the cathode and a quinacridone doped organic layer. Devices with an Al/LiF cathode demonstrated a luminance in excess of 20,000 cd/m2 and an external quantum efficiency of 3%, which is comparable to devices with a Mg/LiF cathode. These devices show maximum luminance of 45,000 cd/m2 prior to failure in continuous bias operation. In the second technique, partially ionized beam deposition was utilized in the fabrication process of organic electroluminescent devices. Preliminary results indicate that devices fabricated with this technique are more efficient and brighter than similar devices fabricated with the traditional thermal evaporation process.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsZ.H. Kafifi
Pages2-13
Number of pages12
Volume3148
DOIs
StatePublished - 1997
EventOrganic Light-Emitting Materials and Devices - San Diego, CA, United States
Duration: Jul 30 1997Aug 1 1997

Other

OtherOrganic Light-Emitting Materials and Devices
CountryUnited States
CitySan Diego, CA
Period7/30/978/1/97

Fingerprint

Luminescent devices
Cathodes
Luminance
Electron injection
Thermal evaporation
Quantum efficiency
cathodes
luminance
Fabrication
quantum efficiency
evaporation
injection
fabrication
augmentation

Keywords

  • Displays
  • Electroluminescence
  • Luminance
  • Organic light emitting devices
  • Partially ionized beam
  • Quantum efficiency

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Jabbour, G. E., Shaheen, S. E., Kawabe, Y., Morrell, M. M., Cho, S. J., Wang, J. F., ... Peyghambarian, N. N. (1997). Novel techniques in fabricating more efficient and brighter organic electroluminescent devices. In Z. H. Kafifi (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3148, pp. 2-13) https://doi.org/10.1117/12.284169

Novel techniques in fabricating more efficient and brighter organic electroluminescent devices. / Jabbour, Ghassan E.; Shaheen, Sean E.; Kawabe, Yutaka; Morrell, Michael M.; Cho, Seong Jin; Wang, Jia Fu; Kippelen, Bernard; Peyghambarian, Nasser N.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Z.H. Kafifi. Vol. 3148 1997. p. 2-13.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jabbour, GE, Shaheen, SE, Kawabe, Y, Morrell, MM, Cho, SJ, Wang, JF, Kippelen, B & Peyghambarian, NN 1997, Novel techniques in fabricating more efficient and brighter organic electroluminescent devices. in ZH Kafifi (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 3148, pp. 2-13, Organic Light-Emitting Materials and Devices, San Diego, CA, United States, 7/30/97. https://doi.org/10.1117/12.284169
Jabbour GE, Shaheen SE, Kawabe Y, Morrell MM, Cho SJ, Wang JF et al. Novel techniques in fabricating more efficient and brighter organic electroluminescent devices. In Kafifi ZH, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3148. 1997. p. 2-13 https://doi.org/10.1117/12.284169
Jabbour, Ghassan E. ; Shaheen, Sean E. ; Kawabe, Yutaka ; Morrell, Michael M. ; Cho, Seong Jin ; Wang, Jia Fu ; Kippelen, Bernard ; Peyghambarian, Nasser N. / Novel techniques in fabricating more efficient and brighter organic electroluminescent devices. Proceedings of SPIE - The International Society for Optical Engineering. editor / Z.H. Kafifi. Vol. 3148 1997. pp. 2-13
@inproceedings{6c0798f060db4d3eb7bf5edd3e2b8ba7,
title = "Novel techniques in fabricating more efficient and brighter organic electroluminescent devices",
abstract = "In this paper, we present two techniques for fabricating efficient and bright organic light emitting devices. The first technique allows for an enhancement in the electron injection process. This is accomplished through inserting a layer of LiF with appropriate thickness between the cathode and a quinacridone doped organic layer. Devices with an Al/LiF cathode demonstrated a luminance in excess of 20,000 cd/m2 and an external quantum efficiency of 3{\%}, which is comparable to devices with a Mg/LiF cathode. These devices show maximum luminance of 45,000 cd/m2 prior to failure in continuous bias operation. In the second technique, partially ionized beam deposition was utilized in the fabrication process of organic electroluminescent devices. Preliminary results indicate that devices fabricated with this technique are more efficient and brighter than similar devices fabricated with the traditional thermal evaporation process.",
keywords = "Displays, Electroluminescence, Luminance, Organic light emitting devices, Partially ionized beam, Quantum efficiency",
author = "Jabbour, {Ghassan E.} and Shaheen, {Sean E.} and Yutaka Kawabe and Morrell, {Michael M.} and Cho, {Seong Jin} and Wang, {Jia Fu} and Bernard Kippelen and Peyghambarian, {Nasser N}",
year = "1997",
doi = "10.1117/12.284169",
language = "English (US)",
volume = "3148",
pages = "2--13",
editor = "Z.H. Kafifi",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

}

TY - GEN

T1 - Novel techniques in fabricating more efficient and brighter organic electroluminescent devices

AU - Jabbour, Ghassan E.

AU - Shaheen, Sean E.

AU - Kawabe, Yutaka

AU - Morrell, Michael M.

AU - Cho, Seong Jin

AU - Wang, Jia Fu

AU - Kippelen, Bernard

AU - Peyghambarian, Nasser N

PY - 1997

Y1 - 1997

N2 - In this paper, we present two techniques for fabricating efficient and bright organic light emitting devices. The first technique allows for an enhancement in the electron injection process. This is accomplished through inserting a layer of LiF with appropriate thickness between the cathode and a quinacridone doped organic layer. Devices with an Al/LiF cathode demonstrated a luminance in excess of 20,000 cd/m2 and an external quantum efficiency of 3%, which is comparable to devices with a Mg/LiF cathode. These devices show maximum luminance of 45,000 cd/m2 prior to failure in continuous bias operation. In the second technique, partially ionized beam deposition was utilized in the fabrication process of organic electroluminescent devices. Preliminary results indicate that devices fabricated with this technique are more efficient and brighter than similar devices fabricated with the traditional thermal evaporation process.

AB - In this paper, we present two techniques for fabricating efficient and bright organic light emitting devices. The first technique allows for an enhancement in the electron injection process. This is accomplished through inserting a layer of LiF with appropriate thickness between the cathode and a quinacridone doped organic layer. Devices with an Al/LiF cathode demonstrated a luminance in excess of 20,000 cd/m2 and an external quantum efficiency of 3%, which is comparable to devices with a Mg/LiF cathode. These devices show maximum luminance of 45,000 cd/m2 prior to failure in continuous bias operation. In the second technique, partially ionized beam deposition was utilized in the fabrication process of organic electroluminescent devices. Preliminary results indicate that devices fabricated with this technique are more efficient and brighter than similar devices fabricated with the traditional thermal evaporation process.

KW - Displays

KW - Electroluminescence

KW - Luminance

KW - Organic light emitting devices

KW - Partially ionized beam

KW - Quantum efficiency

UR - http://www.scopus.com/inward/record.url?scp=0031289972&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031289972&partnerID=8YFLogxK

U2 - 10.1117/12.284169

DO - 10.1117/12.284169

M3 - Conference contribution

VL - 3148

SP - 2

EP - 13

BT - Proceedings of SPIE - The International Society for Optical Engineering

A2 - Kafifi, Z.H.

ER -