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Title: Microwave flexible transistors on cellulose nanofibrillated fiber substrates

Author: Seo, Jung-Hun; Chang, Tzu-Hsuan; Lee, Jaeseong; Sabo, Ronald; Zhou, Weidong; Cai, Zhiyong; Gong, Shaoqin; Ma, Zhenqiang;

Date: 2015

Source: Applied Physics Letters

Publication Series: Scientific Journal (JRNL)

Description: In this paper, we demonstrate microwave flexible thin-film transistors (TFTs) on biodegradable substrates towards potential green portable devices. The combination of cellulose nanofibrillated fiber (CNF) substrate, which is a biobased and biodegradable platform, with transferrable single crystalline Si nanomembrane (Si NM), enables the realization of truly biodegradable, flexible, and high performance devices. Double-gate flexible Si NM TFTs built on a CNF substrate have shown an electron mobility of 160 cm2/V•s and ƒT and ƒmax of 4.9GHz and 10.6 GHz, respectively. This demonstration proves the microwave frequency capability and, considering today’s wide spread use of wireless devices, thus indicates the much wider utility of CNF substrates than that has been demonstrated before. The demonstration may also pave the way toward portable green devices that would generate less persistent waste and save more valuable resources

Keywords: Cellulose Nanofibrils, Thin film transistors (TFTs), flexible electronics, silicon nanomembrane (Si NM), biodegradable

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

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Seo, Jung-Hun; Chang, Tzu-Hsuan; Lee, Jaeseong; Sabo, Ronald; Zhou, Weidong; Cai, Zhiyong; Gong, Shaoqin; Ma, Zhenqiang. 2015. Microwave flexible transistors on cellulose nanofibrillated fiber substrates. Applied Physics Letters. 106(26): 262101-1--262101-4.

 


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