Near-infrared electroluminescent diodes based on copper hexadecafluorophthalocyanine CuPcF16 |
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| Authors: | Zhaoqi Fan Chuanhui Cheng Shukun Yu Kaiqi Ye Daocheng Xia Qinglong Bai Hesong Guan Guotong Du |
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| Institution: | [1]School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116023, China [2]State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China [3]Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China |
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| Abstract: | We demonstrate the near-infrared(NIR)organic light-emitting devices(OLEDs)based on copper hexade cafluorophthalocyanine(CuPcF16)doped into 2,2,2"-(1,3,5-benzenetriyl)tris-1-phenyl-1H-benzimidazole](TPBI).The device structure is ITO/NPB/TPBI:CuPcF16/BCP/Alq3/Al.Room-temperature electro luminescence is observed at about 1106 nm due to transitions from the first excited triplet state to the ground state(T1-S0)of CuPcF16.The result indicates that F(o)rster and Dexter energy transfers play a minor role in these devices,while the direct charge trapping is the dominant mechanism.The absorption spectra of CuPcF16 solution in pyridine and vacuum sublimed films on quartz have also been investigated. |
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