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http://dx.doi.org/10.5370/KIEE.2010.59.5.927

Properties of Electrical and Optical for OLED using Zn(HPB)q as Electron Transporting Layer  

Kim, Dong-Eun (동아대학교 전기공학과)
Park, Jun-Woo (동아대학교 전기공학과)
Kim, Byoung-Sang (동아대학교 전기공학과)
Lee, Burm-Jong (인제대학교 의생명화학과)
Kwon, Young-Soo (동아대학교 전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.59, no.5, 2010 , pp. 927-931 More about this Journal
Abstract
Recently, high luminance and high efficiency were realized in OLED with multilayer structure including emitting materials such as metal-chelate complexes. We synthesized a new luminescent material, namely, [2-(2-hydroxyphenyl)quinoline] (Zn(HPB)q) which has low molecular compound and emitted in yellowish green region. The ionization potential(IP) and electron affinity(EA) of Zn(HPB)q were measured by cyclic-voltammetry(CV). As a result, IP and EA of Zn(HPB)q were calculated 6.8 eV and 3.5 eV, respectively. We fabricated the devices and observed the possibility of Zn(HPB)q as electron transporting layer. We have obtained an improvement of luminance and decrease of turn-on voltage using Zn(HPB)q as electron transporting layer.
Keywords
OLED; Electron Transporting Layer; Zn-complexes; Cyclic Voltammetry; Ionization Potential; Electron Affinity;
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