Improvement of Characteristics of Organic Thin-Film Transistor with Anodized Gate Insulator by an Electrolyte Solution and Low-Voltage Driving of Liquid Crystal by Organic Thin-Film Transistors
Improvement of Characteristics of Organic Thin-Film Transistor with Anodized Gate Insulator by an Electrolyte Solution and Low-Voltage Driving of Liquid Crystal by Organic Thin-Film Transistors
复制标题
电解质溶液对栅绝缘体阳极氧化有机薄膜晶体管特性的改善及有机薄膜晶体管对液晶的低压驱动
DOI：
10.1143/jjap.43.372
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发表时间：
2004
影响因子：
1.5
通讯作者：
H. Kikuchi
中科院分区：
文献类型：
--
作者：
Y. Fujisaki;Y. Inoue;T. Kurita;S. Tokito;H. Fujikake;H. Kikuchi
研究了不同电解质溶液对塑料衬底阳极化栅极绝缘体上五苯基有机薄膜晶体管（OTFTs）性能的影响。以硼酸铵为溶液，其性能得到明显改善。结果表明，该材料具有良好的电流饱和特性，在低漏极电压为3 V时，场效应迁移率为0.51 cm2/Vs，电流通断比为105。利用x射线衍射、原子力显微镜、电容电压测量和二次离子质谱等方法对OTFTs和绝缘子的结构和电学特性进行了研究。实验结果表明，硼酸铵的存在改善了并五苯的取向，降低了绝缘子中杂质的浓度。我们还研究了OTFT对液晶器件的低压驱动，目标是其在柔性显示器上的应用。在实际驾驶中也证实了该方案对车辆性能的改善。
The characteristics of pentacene-based organic thin-film transistors (OTFTs) on plastic substrates with anodized gate insulators using different electrolyte solutions were investigated. The characteristics were significantly improved by using ammonium borate as the solution. The results show a good current-saturation characteristic, field-effect mobility of 0.51 cm2/Vs and a current on/off ratio of 105 at a low drain voltage of 3 V. To investigate the reason for the improvements, the structural and electrical characteristics of OTFTs and insulators were examined using various methods such as X-ray diffraction, atomic force microscope, capacitance-voltage measurement and secondary ion mass spectroscopy. From the results of these experiments, it was found that the orientation of pentacene was improved and the concentration of impurities in the insulator decreased in the case of ammonium borate. We also examined low-voltage driving of liquid crystal devices by the OTFT, targeting its application for flexible displays. Improvement of characteristics by the solution was also confirmed in the driving.