【摘 要】
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Nonvolatile electrical characteristics of pentacence based organic field-effect transistor (OFET)memory devices using the green electrets of sugar-based block copolymer,maltoheptaose-block-polystyrene
【机 构】
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Department of Chemical Engineering National Taiwan University,Taipei,Taiwan,10617
【出 处】
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2014 年两岸三地高分子液晶态与超分子有序结构学术研讨会暨第十三届全国高分子液晶态与超分子有序结构学术论文报告会
论文部分内容阅读
Nonvolatile electrical characteristics of pentacence based organic field-effect transistor (OFET)memory devices using the green electrets of sugar-based block copolymer,maltoheptaose-block-polystyrene (MH-b-PS),and their supramolecules with 1-aminopyrene (APy) are reported in this study.The very hydrophilic and abundant-hydroxyl MH block are employed as charge-trapping sites.while the hydrophobic PS block serves as a matrix as well as a tunneling layer.The orientation of the MH nanodomains could be well-controlled in the PS matrix with random spheres,vertical cylinders,and ordered horizontal cylinders via increasing solvent annealing time,leading to different electrical switching characteristics.The electron-trapping ability induced by the horizontal-cylinder MH is stronger than those of the random-sphere and vertical-cylinder structures.attributed to the effective contact area.
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