Organic transistors with high thermal stability for medical applications

The excellent mechanical flexibility of organic electronic devices is expected to open up a range of new application opportunities in electronics, such as flexible displays, robotic sensors, and biological and medical electronic applications. However, one of the major remaining issues for organic de...

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Bibliographic Details
Published in:Nature communications 2012-03, Vol.3 (1), p.723-723, Article 723
Main Authors: Kuribara, Kazunori, Wang, He, Uchiyama, Naoya, Fukuda, Kenjiro, Yokota, Tomoyuki, Zschieschang, Ute, Jaye, Cherno, Fischer, Daniel, Klauk, Hagen, Yamamoto, Tatsuya, Takimiya, Kazuo, Ikeda, Masaaki, Kuwabara, Hirokazu, Sekitani, Tsuyoshi, Loo, Yueh-Lin, Someya, Takao
Format: Article
Language:English
Subjects:
Electronics, Medical - instrumentation
Semiconductors
Sterilization
Temperature
Transistors, Electronic
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Summary:The excellent mechanical flexibility of organic electronic devices is expected to open up a range of new application opportunities in electronics, such as flexible displays, robotic sensors, and biological and medical electronic applications. However, one of the major remaining issues for organic devices is their instability, especially their thermal instability, because low melting temperatures and large thermal expansion coefficients of organic materials cause thermal degradation. Here we demonstrate the fabrication of flexible thin-film transistors with excellent thermal stability and their viability for biomedical sterilization processes. The organic thin-film transistors comprise a high-mobility organic semiconductor, dinaphtho[2,3-b:2',3'-f]thieno[3,2-b]thiophene, and thin gate dielectrics comprising a 2-nm-thick self-assembled monolayer and a 4-nm-thick aluminium oxide layer. The transistors exhibit a mobility of 1.2 cm(2) V(-1)s(-1) within a 2 V operation and are stable even after exposure to conditions typically used for medical sterilization.
ISSN:2041-1723
2041-1723
DOI:10.1038/ncomms1721