DOI: 10.1143/jjap.44.3669. Optical and Electrical Characteristics of Organic Light-Emitting Diodes with Two-Dimensional Photonic Crystals in Organic/Electrode Layers

Optical and Electrical Characteristics of Organic Light-Emitting Diodes with Two-Dimensional Photonic Crystals in Organic/Electrode Layers

10.1143/jjap.44.3669

Crossref journal-article

IOP Publishing

Japanese Journal of Applied Physics (266)

Abstract

Efficient light extraction is a critical issue for improving the overall efficiency of organic light-emitting diodes (OLEDs). Improvements in OLED efficiency are studied via the introduction of photonic crystal (PC) layers, which are expected to enable versatile control of photons. We fabricate two-dimensional PC structures in organic and electrode layers, in which most light is confined, to extract the light in the waveguide mode. Improvements in OLED efficiency of 20 and 130% are observed in spectrally integrated intensity and the peak intensity of forward-propagating light, respectively, in comparison with samples without PCs. As the thickness of the organic layer is partially reduced, lower operating voltages are found not to degrade light-extraction efficiency. We can expect further improvement in the overall OLED efficiency by optimizing PC structure.

Bibliography

Fujita, M., Ishihara, K., Ueno, T., Asano, T., Noda, S., Ohata, H., Tsuji, T., Nakada, H., & Shimoji, N. (2005). Optical and Electrical Characteristics of Organic Light-Emitting Diodes with Two-Dimensional Photonic Crystals in Organic/Electrode Layers. Japanese Journal of Applied Physics, 44(6R), 3669.

Authors 9

Masayuki Fujita (first)
Kuniaki Ishihara (additional)
Tetsuya Ueno (additional)
Takashi Asano (additional)
Susumu Noda (additional)
Hiroshi Ohata (additional)
Taishi Tsuji (additional)
Hitoshi Nakada (additional)
Noriyuki Shimoji (additional)

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Dates

Type	When
Created	20 years, 1 month ago (July 2, 2005, 10:31 a.m.)
Deposited	2 years, 8 months ago (Dec. 19, 2022, 12:58 p.m.)
Indexed	2 months, 1 week ago (June 21, 2025, 12:10 a.m.)
Issued	20 years, 2 months ago (June 1, 2005)
Published	20 years, 2 months ago (June 1, 2005)
Published Online	20 years, 2 months ago (June 10, 2005)
Published Print	20 years, 2 months ago (June 1, 2005)

Funders 0

None

BibTeX

@article{Fujita_2005, title={Optical and Electrical Characteristics of Organic Light-Emitting Diodes with Two-Dimensional Photonic Crystals in Organic/Electrode Layers}, volume={44}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.44.3669}, DOI={10.1143/jjap.44.3669}, number={6R}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Fujita, Masayuki and Ishihara, Kuniaki and Ueno, Tetsuya and Asano, Takashi and Noda, Susumu and Ohata, Hiroshi and Tsuji, Taishi and Nakada, Hitoshi and Shimoji, Noriyuki}, year={2005}, month=jun, pages={3669} }

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