Numerical simulation of optical and electronic properties for multilayer organic light-emitting diodes and its application in engineering education

Shu Hsuan Chang, Yung Cheng Chang, Cheng Hong Yang, Jun Rong Chen, Yen Kuang Kuo

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

1 Citation (Scopus)

Abstract

Organic light-emitting diodes (OLEDs) have been extensively developed in the past few years. The OLED displays have advantages over other displays, such as CRT, LCD, and PDP in thickness, weight, brightness, response time, viewing angle, contrast, driving power, flexibility, and capability of self-emission. In this work, the optical and electronic properties of multilayer OLED devices are numerically studied with an APSYS (Advanced Physical Model of Semiconductor Devices) simulation program. Specifically, the emission and absorption spectra of the Alq3, DCM, PBD, and SA light-emitting layers, and energy band diagrams, electron-hole recombination rates, and current-voltage characteristics of the simulated OLED devices, typically with a multilayer structure of metal/Alq3/EML/TPD/ITO constructed by Lim et al., 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, DCM, PBD, and SA light-emitting layers obtained in this study are in good agreement with those obtained experimentally by Zugang et al. Optimization of the optical and electronic performance of the multilayer OLED devices are attempted. In order to further promote the research results, the whole numerical simulation process for optimizing the design of OLED devices has been applied to a project-based course of OLED device design to enhance the students' skills in photonics device design at the Graduate Institute of Photonics of National Changhua University of Education in Taiwan. In the meantime, the effectiveness of the course has been proved by various assessments. The application of the results is a useful point of reference for the research on photonics device design and engineering education. Therefore, it proffers a synthetic effect between innovation and practical application.

Original languageEnglish
Title of host publicationLight-Emitting Diodes
Subtitle of host publicationResearch, Manufacturing, and Applications X
DOIs
Publication statusPublished - 2006 May 26
EventLight-Emitting Diodes: Research, Manufacturing, and Applications X - San Jose, CA, United States
Duration: 2006 Jan 252006 Jan 26

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6134
ISSN (Print)0277-786X

Other

OtherLight-Emitting Diodes: Research, Manufacturing, and Applications X
CountryUnited States
CitySan Jose, CA
Period06-01-2506-01-26

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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

Chang, S. H., Chang, Y. C., Yang, C. H., Chen, J. R., & Kuo, Y. K. (2006). Numerical simulation of optical and electronic properties for multilayer organic light-emitting diodes and its application in engineering education. In Light-Emitting Diodes: Research, Manufacturing, and Applications X [61340R] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6134). https://doi.org/10.1117/12.645482