SYNTHESIS AND CHARACTERIZATION OF PHENOTHIAZINE-BASED PPV-TYPE COPOLYMERS CONTAINING FLUORENE AND THIOPHENE MOIETIES |
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| Authors: | WANG Chen LU Yan LIU Song YANG Liying YIN Shougen Silvia Janietz Hartmut Krueger Armin Wedel HUA Yulin |
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| Institution: | 1. Institute of Material Physics, Tianjin University of Technology, Tianjin 300191, China
2. Fraunhofer Institute of Applied Polymer Research,Geiselbergstrasse 69, D-14476 Golm, Germany |
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| Abstract: | Copolymers of fluorene-co-phenothiazine (P1) and thiophene-co-phenothiazine (P2) were prepared respectively by Wittig reaction. The synthesis, photo-physical and electroluminescent properties of the resulting polymers were analyzed by FT-IR, GPC, 1H-NMR, UV-Vis, Photoluminescence (PL), Electroluminescence (EL) and Cyclic Voltammetry (CV). Their single layer devices with configuration of ITO/polymers/Ca/Al were studied. GPC results revealed the weight-average molecular weight (Mw) was 3.0×103 and 5.4×103, respectively. The device with a single layer structure of ITO/P1/Ca/Al emits green light with the maximum peak at 552nm. However,the device with a single layer structure of ITO/P2/Ca/Al emit red light with the maximum peak at 616nm. |
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| Keywords: | Phenothiazine Fluorene Thiophene Wittig-reaction Electroluminescence |
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