Newly Synthesised Gadolinium bis-Phthalocyanine Sandwich Complex: Ambipolar Organic Semiconductor
作者： Seema Barard , Theo Kreouzis , Andrew N Cammidge , Michael J Cook , Asim K Ray
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摘要: Time of flight (TOF) photocurrent transient studies on 5µm thick solution processed films novel non-peripherally octa-octyl-substituted liquid crystalline gadolinium bis-1,4,8,11,15,18,22,25-octakis(octyl) phthalocyanines (8GdPc2) provide a quantitative analysis the intrinsic ambipolar charge transport relative to mesomorphic structure this lanthanide compound. Characteristic phases these molecules have been identified from differential scanning calorimetry supported by observation UV-visible absorption, showing crystal-columnar mesophase and columnar mesophase-isotropic transitions at 64.2°C 162°C, respectively. The TOF carrier mobility is found be dependent highest values 4.73×10−6m2/Vs 1.6×10−6m2/Vs estimated for hole electron mobilities hexagonally packed, structures spin-coated films. These results are exploitable development single molecule based all organic complimentary analogue digital circuits with tunable field effect performance.
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