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Nanoscale Research Letters

, 12:349

12th International Conference on the Nanomolecular Electronics


In this work, a thermal molding technique is proposed for the fabrication of plastic electronics on curved surfaces, enabling the preparation of plastic films with freely designed shapes. The induced strain distribution observed in polyethylene naphthalate films when planar sheets were deformed into hemispherical surfaces clearly indicated that natural thermal contraction played an important role in the formation of the curved surface. A fingertip-shaped organic thin-film transistor array molded from a real human finger was fabricated, and slight deformation induced by touching an object was detected from the drain current response. This type of device will lead to the development of robot fingers equipped with a sensitive tactile sense for precision work such as palpation or surgery.

KeywordsFlexible electronics Organic semiconductor Strain Curved surface Artificial tactile sense C 8-BTBT Thin-film transistor 

Autor: Masatoshi Sakai - Kento Watanabe - Hiroto Ishimine - Yugo Okada - Hiroshi Yamauchi - Yuichi Sadamitsu - Kazuhiro Kudo


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