Crystalline Boron Nanoribbons: Synthesis and Characterization
Terry T. XuDepartment of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, NUANCE Center, Northwestern University, Evanston, Illinois 60208, and Research Resource Center, University of Illinois at Chicago, Chicago, Illinois 60612Jian‐Guo ZhengDepartment of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, NUANCE Center, Northwestern University, Evanston, Illinois 60208, and Research Resource Center, University of Illinois at Chicago, Chicago, Illinois 60612Nianqiang WuDepartment of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, NUANCE Center, Northwestern University, Evanston, Illinois 60208, and Research Resource Center, University of Illinois at Chicago, Chicago, Illinois 60612A. NichollsDepartment of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, NUANCE Center, Northwestern University, Evanston, Illinois 60208, and Research Resource Center, University of Illinois at Chicago, Chicago, Illinois 60612John R. RothDepartment of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, NUANCE Center, Northwestern University, Evanston, Illinois 60208, and Research Resource Center, University of Illinois at Chicago, Chicago, Illinois 60612Dmitriy A. DikinDepartment of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, NUANCE Center, Northwestern University, Evanston, Illinois 60208, and Research Resource Center, University of Illinois at Chicago, Chicago, Illinois 60612Rodney S. RuoffDepartment of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, NUANCE Center, Northwestern University, Evanston, Illinois 60208, and Research Resource Center, University of Illinois at Chicago, Chicago, Illinois 60612
2004en
ABI
Аннотация
Catalyst-free growth of boron nanoribbons was observed by pyrolysis of diborane at 630−750 °C and ∼200 mTorr in a quartz tube furnace. Nanodiffraction analysis indicates the nanoribbons are single crystal α-tetragonal boron. TEM images show the nanoribbon is covered by a 1−2 nm thick amorphous layer. Elemental analysis by EELS, EDX, and XPS shows the nanoribbons consist of boron with small amounts of oxygen and carbon. Infrared and Raman spectra are also reported.
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