Reduction of the Optical Loss in the Multi-Cathode Structure Organic Light Emitting Device Using a Long Range Surface Plasmon - Optics and Photonics Journal

OPJ > Vol.6 No.8, August 2016

Reduction of the Optical Loss in the Multi-Cathode Structure Organic Light Emitting Device Using a Long Range Surface Plasmon ()

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Download as PDF (Size: 1693KB) PP. 226-232

DOI: 10.4236/opj.2016.68B038 1,762 Downloads 3,013 Views Citations

Author(s)

Akiyoshi Mikami

Affiliation(s)

Department of Electrical Engineering, Kanazawa Institute of Technology, Ishikawa, Japan.

ABSTRACT

Light extraction efficiency of organic light-emitting devices has improved by using a nano-sized multi-cathode structure consisting of semi-transparent metal and an optical compensation layer. From the detail optical calculation based on the multi-scale analysis including near-field optics, it was found that surface plasmon loss in the metal cathode is suppressed to less than 10% due to long range and short range surface plasmon coupling between both sides of metal cathode. Not less than 90% of optical power in the dipole emission can be successfully utilized as propagation light. Light extraction efficiency in a phosphorescent device has improved about twice by using the multi-cathode structure.

KEYWORDS

Light-Emitting Device, Organic Material, Surface Plasmon, Optical Simulation

Share and Cite:

Mikami, A. (2016) Reduction of the Optical Loss in the Multi-Cathode Structure Organic Light Emitting Device Using a Long Range Surface Plasmon. Optics and Photonics Journal, 6, 226-232. doi: 10.4236/opj.2016.68B038.

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