Numerical simulation of bright white multilayer organic light-emitting

Mei Ling Chena, Cheng Hong Yang, Chien Yang Wen, Shu-Hsuan Chang, Yen-Kuang Kuo

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

1 Citation (Scopus)

Abstract

Transferring existing color filter technology to an organic light-emitting diode (OLED) display can greatly simplify the fabrication of a full-color OLED since only a white light emission device is required. In this work, the optical and electronic properties of bright white multilayer OLEDs, typically with a structure of metal/LiF/Alq3/EML/TPD/ITO constructed by Lim et al., are numerically investigated with the APSYS simulation program. Specifically, the emission/absorption spectra of the Alq3 (Green), Alq 3:DCM (Red), and SA (Blue) light-emitting layers (EMLs) as well as the energy band diagrams, electron-hole recombination rates, electroluminescence, current-voltage, and luminance-current characteristics of the simulated OLED devices are investigated and compared to the experimental results. The physical models utilized in this work are similar to those presented by Ruhstaller et al. and Hoffmann et al. The simulated results indicate that the emission spectra of the Alq3, Alq3:DCM, and SA light-emitting layers obtained in this study are in good agreement with those obtained experimentally by Zugang et al. We study the optical and electronic properties of the OLEDs consisting of several dotted-line doped layers (DLDLs) and adjust all emission layers to enhance the luminance efficiency. Finally, we insert m-MTDATA and CuPc buffer layers onto the ITO anode. Using the double-buffer layer structure, the device performance can be greatly improved through the relative alignment of the energy levels of the layers to enhance the holes injection and transportation. Structural optimization for the OLED devices with better optical and electronic performance is also discussed.

Original languageEnglish
Title of host publicationOrganic Light Emitting Materials and Devices XI
Volume6655
DOIs
Publication statusPublished - 2007 Dec 1
EventOrganic Light Emitting Materials and Devices XI - San Diego, CA, United States
Duration: 2007 Aug 262007 Aug 29

Other

OtherOrganic Light Emitting Materials and Devices XI
CountryUnited States
CitySan Diego, CA
Period07-08-2607-08-29

Fingerprint

Organic light emitting diodes (OLED)
Organic Light-emitting Diodes
Multilayer
Multilayers
Numerical Simulation
Computer simulation
light emitting diodes
simulation
Buffer layers
Electronic properties
Luminance
Electronic Properties
Optical properties
luminance
ITO (semiconductors)
Optical Properties
Color
Buffer
emission spectra
Structural optimization

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Chena, M. L., Yang, C. H., Wen, C. Y., Chang, S-H., & Kuo, Y-K. (2007). Numerical simulation of bright white multilayer organic light-emitting. In Organic Light Emitting Materials and Devices XI (Vol. 6655). [66551T] https://doi.org/10.1117/12.734159
Chena, Mei Ling ; Yang, Cheng Hong ; Wen, Chien Yang ; Chang, Shu-Hsuan ; Kuo, Yen-Kuang. / Numerical simulation of bright white multilayer organic light-emitting. Organic Light Emitting Materials and Devices XI. Vol. 6655 2007.
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title = "Numerical simulation of bright white multilayer organic light-emitting",
abstract = "Transferring existing color filter technology to an organic light-emitting diode (OLED) display can greatly simplify the fabrication of a full-color OLED since only a white light emission device is required. In this work, the optical and electronic properties of bright white multilayer OLEDs, typically with a structure of metal/LiF/Alq3/EML/TPD/ITO constructed by Lim et al., are numerically investigated with the APSYS simulation program. Specifically, the emission/absorption spectra of the Alq3 (Green), Alq 3:DCM (Red), and SA (Blue) light-emitting layers (EMLs) as well as the energy band diagrams, electron-hole recombination rates, electroluminescence, current-voltage, and luminance-current characteristics of the simulated OLED devices are investigated and compared to the experimental results. The physical models utilized in this work are similar to those presented by Ruhstaller et al. and Hoffmann et al. The simulated results indicate that the emission spectra of the Alq3, Alq3:DCM, and SA light-emitting layers obtained in this study are in good agreement with those obtained experimentally by Zugang et al. We study the optical and electronic properties of the OLEDs consisting of several dotted-line doped layers (DLDLs) and adjust all emission layers to enhance the luminance efficiency. Finally, we insert m-MTDATA and CuPc buffer layers onto the ITO anode. Using the double-buffer layer structure, the device performance can be greatly improved through the relative alignment of the energy levels of the layers to enhance the holes injection and transportation. Structural optimization for the OLED devices with better optical and electronic performance is also discussed.",
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Chena, ML, Yang, CH, Wen, CY, Chang, S-H & Kuo, Y-K 2007, Numerical simulation of bright white multilayer organic light-emitting. in Organic Light Emitting Materials and Devices XI. vol. 6655, 66551T, Organic Light Emitting Materials and Devices XI, San Diego, CA, United States, 07-08-26. https://doi.org/10.1117/12.734159

Numerical simulation of bright white multilayer organic light-emitting. / Chena, Mei Ling; Yang, Cheng Hong; Wen, Chien Yang; Chang, Shu-Hsuan; Kuo, Yen-Kuang.

Organic Light Emitting Materials and Devices XI. Vol. 6655 2007. 66551T.

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

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N2 - Transferring existing color filter technology to an organic light-emitting diode (OLED) display can greatly simplify the fabrication of a full-color OLED since only a white light emission device is required. In this work, the optical and electronic properties of bright white multilayer OLEDs, typically with a structure of metal/LiF/Alq3/EML/TPD/ITO constructed by Lim et al., are numerically investigated with the APSYS simulation program. Specifically, the emission/absorption spectra of the Alq3 (Green), Alq 3:DCM (Red), and SA (Blue) light-emitting layers (EMLs) as well as the energy band diagrams, electron-hole recombination rates, electroluminescence, current-voltage, and luminance-current characteristics of the simulated OLED devices are investigated and compared to the experimental results. The physical models utilized in this work are similar to those presented by Ruhstaller et al. and Hoffmann et al. The simulated results indicate that the emission spectra of the Alq3, Alq3:DCM, and SA light-emitting layers obtained in this study are in good agreement with those obtained experimentally by Zugang et al. We study the optical and electronic properties of the OLEDs consisting of several dotted-line doped layers (DLDLs) and adjust all emission layers to enhance the luminance efficiency. Finally, we insert m-MTDATA and CuPc buffer layers onto the ITO anode. Using the double-buffer layer structure, the device performance can be greatly improved through the relative alignment of the energy levels of the layers to enhance the holes injection and transportation. Structural optimization for the OLED devices with better optical and electronic performance is also discussed.

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Chena ML, Yang CH, Wen CY, Chang S-H, Kuo Y-K. Numerical simulation of bright white multilayer organic light-emitting. In Organic Light Emitting Materials and Devices XI. Vol. 6655. 2007. 66551T https://doi.org/10.1117/12.734159