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https://hdl.handle.net/10119/7935
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| Title: | High-current Injection and Transport on Order of kA/cm^2 in Organic Light-emitting Diodes Having Mixed Organic/Organic Heterojunction Interfaces |
| Authors: | Matsushima, Toshinori
Adachi, Chihaya |
| Keywords: | organic light-emitting diode
organic/organic heterojunction interface
high current density
electrically pumped organic laser diode |
| Issue Date: | 2007-09-07 |
| Publisher: | The Japan Society of Applied Physics |
| Magazine name: | Japanese Journal of Applied Physics |
| Volume: | 46 |
| Number: | 35 |
| Start page: | L861 |
| End page: | L863 |
| DOI: | 10.1143/JJAP.46.L861 |
| Abstract: | We manufactured multilayer organic light-emitting diodes (OLEDs) with mixed organic/organic heterojunction interfaces composed of alpha-sexithiophene and phenyldipyrenylphosphine oxide carrier-transporting layers. In the mixed-interface OLEDs, we achieved a low driving voltage of 3.6 V at a current flow of 100 mA/cm^2, which was caused by efficient carrier injection at the mixed interfaces. We investigated how much current can flow through these OLEDs with the aim of fabricating electrically pumped organic laser diodes. We found that an OLED of this type with a small active area of 625 μm^2 on a high-thermal-conductivity sapphire substrate can sustain high current densities of 1.1 kA/cm^2 and emits bright electroluminescence of 7.9 Mcd/m^2 under direct current. |
| Rights: | This is the author's version of the work. It is posted here by permission of The Japan Society of Applied Physics. Copyright (C) 2007 The Japan Society of Applied Physics. Toshinori Matsushima, and Chihaya Adachi, Japanese Journal of Applied Physics, 46(35), 2007, L861-L863. http://jjap.ipap.jp/link?JJAP/46/L861/ |
| URI: | https://hdl.handle.net/10119/7935 |
| Material Type: | author |
| Appears in Collections: | c10-1. 雑誌掲載論文 (Journal Articles)
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| C12176.pdf | | 455Kb | Adobe PDF | View/Open |
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