Restorable type conversion of carbon nanotube transistor using pyrolytically controlled antioxidizing photosynthesis coenzyme

Bo Ram Kang, Woo Jong Yu, Ki Kang Kim, Hyeon Ki Park, Soo Min Kim, Yongjin Park, Gunn Kim, Hyeon Jin Shin, Unjeong Kim, Eun Hong Lee, Jae Young Choi, Young Hee Lee

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

Here, a pyrolytically controlled antioxidizing photosynthesis coenzyme, βNicotinamide adenine dinucleotide, reduced dipotassium salt (NADH) for a stable n-type dopant for carbon nanotube (CNT) transistors is proposed. A strong electron transfer from NADH, mainly nicotinamide, to CNTs takes place during pyroiysis so that not only the type conversion from p-type to n-type is realized with 100% of reproducibility but also the on/off ratio of the transistor is significantly improved by increasing on-current and/or decreasing off-current. The device was stable up to a few months with negligible current changes under ambient conditions. The n-type characteristics were completely recovered to an initial doping level after reheat treatment of the device.

Original languageEnglish
Pages (from-to)2553-2559
Number of pages7
JournalAdvanced Functional Materials
Volume19
Issue number16
DOIs
StatePublished - 2009

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