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Proceedings Paper

An organic p-n junction for electrode-independent electron injection layer in organic light emitting diodes
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Paper Abstract

We demonstrated that an organic p–n junction was successfully adapted to inverted organic light emitting diodes (IOLEDs) as an electron injection layer (EIL). The organic p–n junction composed of a ReO3 doped copper phthalocyanine (CuPc)/Rb2CO3 doped 4,7-diphenyl-1,10-phenanthroline (Bphen) layer showed very efficient charge generation under a reverse bias reaching to 100 mA/cm2 at 0.3 V and efficient electron injection from indium tin oxide (ITO) when adopted in IOLEDs. Moreover, the organic p–n junction resulted in the same current density–voltage–luminance characteristics independent of the work function of the cathode, which is a valuable advantage for flexible displays.

Paper Details

Date Published: 13 September 2012
PDF: 4 pages
Proc. SPIE 8476, Organic Light Emitting Materials and Devices XVI, 84761R (13 September 2012); doi: 10.1117/12.930237
Show Author Affiliations
Jeong-Hwan Lee, Seoul National Univ. (Korea, Republic of)
Ji Whan Kim, Seoul National Univ. (Korea, Republic of)
Sei-Yong Kim, Seoul National Univ. (Korea, Republic of)
Seung-Jun Yoo, Seoul National Univ. (Korea, Republic of)
Jae-Hyun Lee, Seoul National Univ. (Korea, Republic of)
Jang-Joo Kim, Seoul National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 8476:
Organic Light Emitting Materials and Devices XVI
Franky So; Chihaya Adachi, Editor(s)

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