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- W845673889 abstract "An effective electron-injection layer (EIL) is crucial to the development of highly efficient polymer light-emitting diodes (PLEDs) using stable, high work-function aluminium as the cathode. This work presents the first investigation using hydroxyethyl cellulose (HEC), filled with chelate complexes [(CH3COO)2-M, EDTA-M; M: Ca2+, Mg2+], as an electron-injection layer (EIL) to fabricate multilayer polymer light-emitting diodes (ITO/PEDO:PSS/HY-PPV/EIL/Al) by spin-coating processes. Devices based on HEC doped with EDTA-M provided the best performance. The maximum luminance and maximum current efficiency of polymer light-emitting diodes with EDTA-Ca in an HEC layer were 7502 cd/m2 and 2.85 cd/A, respectively, whereas those with EDTA-Mg were 8443 cd/m2 and 3.12 cd/A, which was approximately seven- to eight-fold of that without EIL. This performance enhancement was attributed to electron donation from the chelator that reduces metal cations to a “pseudo-metallic state”, enabling it to act as an intermediate step to facilitate electron injection. The results demonstrate that chelates of bivalent cations with EDTA can potentially serve as electron-injection materials for optoelectronic applications." @default.
- W845673889 created "2016-06-24" @default.
- W845673889 creator A5058066106 @default.
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- W845673889 date "2015-10-01" @default.
- W845673889 modified "2023-10-14" @default.
- W845673889 title "Hydroxyethyl cellulose filled with M2+ chelate complexes with ethylenediaminetetraacetic acid (EDTA) as an effective electron-injection layer for polymer light-emitting diodes" @default.
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- W845673889 doi "https://doi.org/10.1016/j.orgel.2015.06.035" @default.
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