Restorable Type Conversion of Carbon Nanotube Transistor Using Pyrolytically Controlled Antioxidizing Photosynthesis Coenzyme |
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Authors: | Bo Ram Kang Woo Jong Yu Ki Kang Kim Hyeon Ki Park Soo Min Kim Yongjin Park Gunn Kim Hyeon‐Jin Shin Un Jeong Kim Eun‐Hong Lee Jae‐Young Choi Young Hee Lee |
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Institution: | 1. Sungkyunkwan Advanced Institute of Nanotechnology BK21 physics division Department of Energy Science Center for Nanotubes and Nanostructured Composites Sungkyunkwan University Suwon 440‐746 (Korea);2. Display Device & Processing Laboratory Samsung Advanced Institute of Technology Suwon 449‐712 (Korea);3. Frontier Research Laboratory Samsung Advanced Institute of Technology Suwon 449‐712 (Korea) |
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Abstract: | Here, a pyrolytically controlled antioxidizing photosynthesis coenzyme, β‐Nicotinamide 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 pyrolysis 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. |
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Keywords: | Carbon nanotubes n‐type doping Photosynthesis coenzymes Transistors |
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