Direct Solvothermal Synthesis of B/N-Doped Graphene
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- Direct Solvothermal Synthesis of B/N-Doped Graphene
- Jung, Sun-Min; Lee, Eun Kwang; Choi, Min; Shin, Dongbin; Jeon, In-Yup; Seo, Jeong-Min; Jeong, Hu Young; Park, Noejung; Oh, Joon Hak; Baek, Jong-Beom
- boron; doping; field effect transistors; graphene; nitrogen
- Issue Date
- WILEY-V C H VERLAG GMBH
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.53, no.9, pp.2398 - 2401
- Heteroatom-doping into graphitic networks has been utilized for opening the band gap of graphene. However, boron-doping into the graphitic framework is extremely limited, whereas nitrogen-doping is relatively feasible. Herein, boron/nitrogen co-doped graphene (BCN-graphene) is directly synthesized from the reaction of CCl4, BBr3, and N2 in the presence of potassium. The resultant BCN-graphene has boron and nitrogen contents of 2.38 and 2.66 atom %, respectively, and displays good dispersion stability in N-methyl-2-pyrrolidone, allowing for solution casting fabrication of a field-effect transistor. The device displays an on/off ratio of 10.7 with an optical band gap of 3.3 eV. Considering the scalability of the production method and the benefits of solution processability, BCN-graphene has high potential for many practical applications. Mixing it up a bit: B/N-doped graphene was directly synthesized from the reaction of CCl4, BBr3, and N2 in the presence of potassium. It has good dispersibility in N-methyl-2-pyrrolidone, allowing solution casting for the fabrication of field-effect transistors with an on/off ratio of 10.7 and an optical band gap of 3.3 eV. The method is scalable and solution processable, making it suitable for many applications.
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