Printable Cross-Linked Polymer Blend Dielectrics. Design Strategies, Synthesis, Microstructures, and Electrical Properties, with Organic Field-Effect Transistors as Testbeds
作者:Choongik Kim、Zhiming Wang、Hyuk-Jin Choi、Young-Geun Ha、Antonio Facchetti、Tobin J. Marks
DOI:10.1021/ja801047g
日期:2008.5.1
We report here the synthesis and dielectric properties of optimized, cross-linked polymer blend (CPB) dielectrics for application in organic field-effect transistors (OFETs). Novel silane cross-linking reagents enable the synthesis of CPB films having excellent quality and tunable thickness (from 10 to approximately 500 nm), fabricated both by spin-coating and gravure-printing. Silane reagents of the
我们在此报告了用于有机场效应晶体管 (OFET) 的优化交联聚合物共混物 (CPB) 电介质的合成和介电性能。新型硅烷交联剂能够合成具有优异质量和可调厚度(从 10 到大约 500 nm)的 CPB 薄膜,通过旋涂和凹版印刷制造。式 X 3Si-R-SiX 3 (R = -C 6H 12- 和 X = Cl、OAc、NMe 2、OMe 或 R = -C 2H 4-OC 2H 4- 和 X = OAc) 的硅烷试剂表现出与含羟基底物的可调反应性。通过将 X 3Si-R-SiX 3 与聚(4-乙烯基)苯酚 (PVP) 混合制成的介电薄膜需要非常低的固化温度(大约 110 摄氏度),并能牢固地粘附在各种 FET 栅极接触材料上,例如 n ( +)-Si、ITO 和 Al。CPB 电介质具有出色的绝缘性能(泄漏电流密度为 10 (-7) 大约 10 (-8) A cm (-2) at 2.0 MV/cm)和可调电容值(从