Energetic Relaxation of Anions in OLED Films Directly Observed by High Sensitivity Photoemission: Impact of Orientation Polarization on Electron Injection

H. Kinjo; T. Sato; H. Lim; H. Kim; J. Yamazaki; K. Dote; Y. Noguchi; Y. Nakayama; H. Ishii; H. Ishii; H. Ishii

doi:10.1364/SOLED.2015.DM3D.2

Light, Energy and the Environment 2015
(Optica Publishing Group, 2015),
paper DM3D.2
•https://doi.org/10.1364/SOLED.2015.DM3D.2

Energetic Relaxation of Anions in OLED Films Directly Observed by High Sensitivity Photoemission: Impact of Orientation Polarization on Electron Injection

H. Kinjo, T. Sato, H. Lim, H. Kim, J. Yamazaki, K. Dote, Y. Noguchi, Y. Nakayama, and H. Ishii

Solid-State and Organic Lighting 2015

Suzhou China
2–5 November 2015
ISBN: 978-1-55752-002-9

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OLED Device Physics (DM3D)

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H. Kinjo, T. Sato, H. Lim, H. Kim, J. Yamazaki, K. Dote, Y. Noguchi, Y. Nakayama, and H. Ishii, "Energetic Relaxation of Anions in OLED Films Directly Observed by High Sensitivity Photoemission: Impact of Orientation Polarization on Electron Injection," in Light, Energy and the Environment 2015, (Optica Publishing Group, 2015), paper DM3D.2.

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Abstract

OLED-related materials often show orientation polarization in evaporated films. High sensitivity photoemission revealed that these positive polarization charges energetically stabilize the anions. This indicates that orientation polarization is significant to improve electron injection.

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