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제107회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Semiconducting Polymer Electrospun Nanofibers

2011년 3월 9일 14시 14분 28초
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금 11시 : 00분
Advances in Information Display Technology : Materials and Processing
저자 및
Chi-Ching Kuo, Cheng-Ting Wang, Jung-Yao Chen, Wen-Chang Chen1
Institute of Polymer Science and Engineering, Taiwan
1Institute of Polymer Science and Engineering and Department of Chemical Engineering, National Taiwan University, Taiwan, Taiwan
Electrospinning (ES) has emerged as a new technique to produce various functional nanofibers due to its advantages of low cost, high surface to volume ratio, and flexible morphology tuning. We are interested in exploring the morphology and optoelectronic properties of semiconductor polymer ES nanofibers, as described in the following: (1) Full color light-emitting ES nanofibers could be produced from the binary blends of polyfluorene (PFO) derivatives/PMMA. The PFO aggregation in the ES fibers was much smaller than that in the spin-coated film due to the ES geometrical confinement and resulted in higher luminescence efficiency. In addition, highly aligned ES nanofibers prepared from the ternary blends of PFO/poly(2,3-dibutoxy-1,4-phenylene vinylene)/PMMA led to the varied emission colors at different angles. (2) Novel electrospun (ES) fibers prepared from random copolymers of poly((2-(dimethylamino)ethyl methacrylate)-co-(stearyl acrylate)-co–(9,9-dihexyl-2-(4-vinylpenyl)-9H-fluorene)) exhibited the multi-functionality of thermo-responsive, physical corsslinking, and high fluorescence characteristics. (3) We have produced ES nanofiber field effect transistors (high hole mobility>0.3 cm2 V-1 s-1, On/Off > 105) from of regioregular polythiophene (P3HT) and two-dimensional conjugated polythiophene (P4DPP). The present study demonstrated that the above ES fibers prepared from semiconducting polymer systems could have potential application for sensory devices, smart textiles, optoelectronic, or nanoelectronic devices.