文章基本信息

标题：A large-area, flexible pressure sensor matrix with organic field-effect transistors for artificial skin applications
本地全文：下载
作者：Takao Someya ; Tsuyoshi Sekitani ; Shingo Iba 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2004
卷号：101
期号：27
页码：9966-9970
DOI：10.1073/pnas.0401918101
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：It is now widely accepted that skin sensitivity will be very important for future robots used by humans in daily life for housekeeping and entertainment purposes. Despite this fact, relatively little progress has been made in the field of pressure recognition compared to the areas of sight and voice recognition, mainly because good artificial "electronic skin" with a large area and mechanical flexibility is not yet available. The fabrication of a sensitive skin consisting of thousands of pressure sensors would require a flexible switching matrix that cannot be realized with present silicon-based electronics. Organic field-effect transistors can substitute for such conventional electronics because organic circuits are inherently flexible and potentially ultralow in cost even for a large area. Thus, integration of organic transistors and rubber pressure sensors, both of which can be produced by low-cost processing technology such as large-area printing technology, will provide an ideal solution to realize a practical artificial skin, whose feasibility has been demonstrated in this paper. Pressure images have been taken by flexible active matrix drivers with organic transistors whose mobility reaches as high as 1.4 cm2/V{middle dot}s. The device is electrically functional even when it is wrapped around a cylindrical bar with a 2-mm radius.