Printable and recyclable carbon electronics using crystalline nanocellulose dielectrics.
Printable and recyclable carbon electronics using crystalline nanocellulose dielectrics.
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DOI：
10.1038/s41928-021-00574-0
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发表时间：
2021-04
影响因子：
34.3
通讯作者：
Franklin AD
中科院分区：
文献类型：
--
作者：
Williams NX;Bullard G;Brooke N;Therien MJ;Franklin AD
电子废物可能导致环境和生物有毒物质的积累，是一个日益令人担忧的全球问题。瞬变电子学的发展--其中的设备被设计为在使用后解体--侧重于提高生物兼容性，而开发重新捕获和重复使用材料的方法的努力集中在导电材料上，而忽略了其他电子材料。在这里，我们报道了以结晶纳米纤维为介质，碳纳米管为半导体，石墨烯为导体，纸为衬底的全碳薄膜晶体管。开发了一种晶态纳米纤维素墨水，它与纳米管和石墨烯墨水兼容，可以使用常温气溶胶喷墨打印在纸张基材上书写。在介质中添加可移动的钠离子改善了薄膜晶体管的导通电流(87 μA mm−1)和亚阈值摆幅(132 mV dec−1)，并导致更快的电压扫描速度(约20倍于不加离子)。该设备还在环境条件下表现出六个月的稳定性能，并且可以可控地分解，石墨烯和碳纳米管墨水回收用于回收(>；95%重新捕获效率)和重新打印新的晶体管。我们通过创建一种用于乳酸传感的全印刷纸基生物传感器来演示薄膜晶体管的用途。
Electronic waste can lead to the accumulation of environmentally and biologically toxic materials and is a growing global concern. Developments in transient electronics—in which devices are designed to disintegrate after use—have focused on increasing the biocompatibility, whereas efforts to develop methods to recapture and reuse materials have focused on conducting materials, while neglecting other electronic materials. Here, we report all-carbon thin-film transistors made using crystalline nanocellulose as a dielectric, carbon nanotubes as a semiconductor, graphene as a conductor and paper as a substrate. A crystalline nanocellulose ink is developed that is compatible with nanotube and graphene inks and can be written onto a paper substrate using room-temperature aerosol jet printing. The addition of mobile sodium ions to the dielectric improves the thin-film transistor on-current (87 μA mm−1) and subthreshold swing (132 mV dec−1), and leads to a faster voltage sweep rate (by around 20 times) than without ions. The devices also exhibit stable performance over six months in ambient conditions and can be controllably decomposed, with the graphene and carbon nanotube inks recaptured for recycling (>95% recapture efficiency) and reprinting of new transistors. We demonstrate the utility of the thin-film transistors by creating a fully printed, paper-based biosensor for lactate sensing.
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影响因子：
38.3
作者：
McManus, Daryl;Vranic, Sandra;Casiraghi, Cinzia
通讯作者：
Casiraghi, Cinzia
影响因子：
5.7
作者：
Moberg, Tobias;Sahlin, Karin;Rigdahl, Mikael
通讯作者：
Rigdahl, Mikael
影响因子：
28.1
作者：
Boutry, Clementine M.;Beker, Levent;Bao, Zhenan
通讯作者：
Bao, Zhenan
影响因子：
5.7
作者：
Chen, Liheng;Wang, Qianqian;Zhu, J. Y.
通讯作者：
Zhu, J. Y.
影响因子：
3.1
作者：
McKerricher, Garret;Perez, Jose Gonzalez;Shamim, Atif
通讯作者：
Shamim, Atif