Aligned Ultralong ZnO Nanobelts and Their Enhanced Field Emission | Zendy

Wang W. Z. | Zendy; Zeng B. Q. | Zendy; Yang J. | Zendy; Poudel B. | Zendy; Huang J. Y. | Zendy; Naughton M. J. | Zendy; Ren Z. F. | Zendy

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Aligned Ultralong ZnO Nanobelts and Their Enhanced Field Emission

Author(s) -

Wang W. Z.,

Zeng B. Q.,

Yang J.,

Poudel B.,

Huang J. Y.,

Naughton M. J.,

Ren Z. F.

Publication year - 2006

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200601274

Subject(s) - materials science , substrate (aquarium) , field electron emission , evaporation , current density , electric field , molten salt , nanotechnology , thermal , field (mathematics) , optoelectronics , metallurgy , oceanography , meteorology , thermodynamics , geology , physics , quantum mechanics , electron , mathematics , pure mathematics

Aligned ultralong ZnO nanobelts with an average length of 3.3 mm and widths up to 6 μm (see figure) are synthesized on a metal substrate through a one‐step process. The nanobelts obtained from this molten‐salt‐assisted thermal evaporation route show an emission current density of 1 mA cm –2 at an electric field of 2.9 V μm –1 , resulting from their high field‐enhancement factor (1.4 × 10 4 ).

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