15 October 2012 Metallophthalocyanine and subphthalocyanine films as electron-transport layer in organic light-emitting diodes
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Abstract
Organic light-emitting diodes (OLEDs) are fabricated by using metallophthalocyanine and subphthalocyanine as electron-transport materials. The performance of the electroluminescence in the device ITO/CoPc/NPB/Alq3/TPBi/Pcs/Mg: Ag is systematically investigated. The turn-on voltage, maximum luminance and maximum current efficiency of the device with a SnPc electron-transport layer can reach 7.6 V, 7550 cd/m2 and 3.26 cd/A, respectively. Meanwhile, the turn-on voltage, maximum luminance and maximum current efficiency of the device with a SubPc layer are 5.4 V, 10059 cd/m2, and 6.4 cd/A. The results demonstrate that a relatively unique feature of Subphthalocyaninethe, which could transport electron effectively, and tell us that central metal atoms determined the electron-transport ability of metallophthalocyanine.
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Zhu Ma, Zhu Ma, Junsheng Yu, Junsheng Yu, Juan Zhao, Juan Zhao, Shengqiang Liu, Shengqiang Liu, Longfeng Jiang, Longfeng Jiang, } "Metallophthalocyanine and subphthalocyanine films as electron-transport layer in organic light-emitting diodes", Proc. SPIE 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy, 84190D (15 October 2012); doi: 10.1117/12.978655; https://doi.org/10.1117/12.978655
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