A novel functional polyurethane as a dielectric layer for organic thin-film transistors

作者：Wang, Xuesong; Wang, He; Li, Yao; Xu, Ting; Wang, Wei; Cheng, Jian; Shi, Zuosen; Yan, Donghang^*; Cui, Zhanchen^*

来源：New Journal of Chemistry, 2018, 42(13): 10969-10975.

DOI：10.1039/c8nj01383g

• FIELD-EFFECT TRANSISTORS
• LOW-VOLTAGE
• ELECTRICAL-PROPERTIES
• GATE DIELECTRICS
• GROWTH
• POLYMER
• SEMICONDUCTORS
• PERFORMANCE
• TEMPERATURE
• ELECTRONICS

In this study, we design and synthesize a novel photosensitive polyurethane material as a functional dielectric layer, which can adjust the crystallization of para-hexaphenyl (p-6P). The novel polymer is synthesized with a new monomer 2,2-bis(hydroxymethyl)butyl 4-cyanobenzoate (HM-4-CB), which contains benzene to provide crystal nucleus sites. The grain size and density of the p-6P crystal can be controlled by the content of HM-4-CB in the polymer structure. Therefore, this method can be used to regulate the grain size of semiconductor crystals and then to change the carrier mobility of the device. The results illustrate that with a suitable grain size of the p-6P semiconductor, excellent performance in terms of charge carrier mobility can be obtained.

• 出版日期2018-7-7
• 单位超分子结构与材料国家重点实验室; 高分子物理与化学国家重点实验室; 吉林大学; 集成光电子学国家重点实验室; 中国科学院; 中国科学院长春应用化学研究所