Solution-processable polyphenylphenyl dendron bearing molecules for highly efficient blue light-emitting diodes |
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Authors: | Huang Chun Zhen Chang-Gua Su Siew Ping Loh Kian Ping Chen Zhi-Kuan |
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Institution: | Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602, Republic of Singapore. |
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Abstract: | structure: see text] Novel solution-processable blue light-emitting materials Blue A-D, bearing a polyphenylphenyl dendron, have been synthesized and characterized. The energy levels and band gaps can be facilely tuned by changing the central aromatic ring of the molecules. A highly efficient deep blue light-emitting OLED device based on Blue C with a maximum current efficiency of 2.2 cd/A has been achieved using PVK as the host material through a solution process. |
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