A high-mobility electron-transporting polymer for printed transistors

材料科学 晶体管 印刷电子产品 薄膜晶体管 半导体 数码产品 纳米技术 光电子学 聚合物 电介质 制作 有机电子学 电子迁移率 有机半导体 电气工程 墨水池 图层(电子) 电压 复合材料 工程类 病理 医学 替代医学
作者
He Yan,Zhihua Chen,Yan Zheng,Christopher R. Newman,Jordan R. Quinn,Florian Dötz,Marcel Kastler,Antonio Facchetti
出处
期刊:Nature [Nature Portfolio]
卷期号:457 (7230): 679-686 被引量:2886
标识
DOI:10.1038/nature07727
摘要

Printed electronics is a revolutionary technology aimed at unconventional electronic device manufacture on plastic foils, and will probably rely on polymeric semiconductors for organic thin-film transistor (OTFT) fabrication. In addition to having excellent charge-transport characteristics in ambient conditions, such materials must meet other key requirements, such as chemical stability, large solubility in common solvents, and inexpensive solution and/or low-temperature processing. Furthermore, compatibility of both p-channel (hole-transporting) and n-channel (electron-transporting) semiconductors with a single combination of gate dielectric and contact materials is highly desirable to enable powerful complementary circuit technologies, where p- and n-channel OTFTs operate in concert. Polymeric complementary circuits operating in ambient conditions are currently difficult to realize: although excellent p-channel polymers are widely available, the achievement of high-performance n-channel polymers is more challenging. Here we report a highly soluble ( approximately 60 g l(-1)) and printable n-channel polymer exhibiting unprecedented OTFT characteristics (electron mobilities up to approximately 0.45-0.85 cm(2) V(-1) s(-1)) under ambient conditions in combination with Au contacts and various polymeric dielectrics. Several top-gate OTFTs on plastic substrates were fabricated with the semiconductor-dielectric layers deposited by spin-coating as well as by gravure, flexographic and inkjet printing, demonstrating great processing versatility. Finally, all-printed polymeric complementary inverters (with gain 25-65) have been demonstrated.
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