Field emission properties of patterned boron nanocones.

نویسندگان

  • Chen Li
  • Yuan Tian
  • Chao Hui
  • Jifa Tian
  • Lihong Bao
  • Chengmin Shen
  • Hong-Jun Gao
چکیده

Large area patterned boron nanocones with low turn-on electric field of 2.8 V microm(-1) and low threshold electric field of 3.8 V microm(-1) were synthesized by a pre-manipulation to pattern the catalyst with a grid template as mask. The good field emission performance of patterned boron nanocones arise from the decreased screening effect and a favorable orientation of the nanocones. These results show that the patterned growth is a highly efficient way to enhance the field emission performance of boron nanocones, which have a great potential of application in flat panel displays and electron emission nanodevices.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Electron states in boron nitride nanocones

We apply first-principles calculations to study the electronic structure of boron nitride nanocones with disclinations of different angles θ = nπ/3. Nanocones with odd values of n present antiphase boundaries that cause a reduction of the work function of the nanocones, relative to the bulk BN value, by as much as 2 eV. In contrast, nanocones with even values of n do not have such defects and p...

متن کامل

Computational studies of carbon decorated boron nitride nanocones

Density functional theory ,(DFT) calculations have been performed to investigate the properties ofcarbon decorated (C-decorated) models of boron nitride (BN) nanocones. To this aim, the apex andtip of nanocone have been substituted by the carbon atoms to represent the C-decorated models. Theresults indicated that dipole moments and energy gaps could reveal the effects of C-decorations onthe pro...

متن کامل

Flower-like TiO2 nanosructures with exposed {001} facets: Facile synthesis and enhanced photocatalysis

Carbon nanotubes, carbon nanocones, and graphene nanoribbons are carbon-based nanomaterials, and their electronic and field emission properties can be altered by either electron donors or electron acceptors. Among both donors and accepters, nitrogen and boron atoms are typical substitutional dopants for carbon materials. The contribution of this paper mainly provides a comprehensive overview of...

متن کامل

One-dimensional boron nanostructures: Prediction, synthesis, characterizations, and applications.

One-dimensional (1D) boron nanostructures are very potential for nanoscale electronic devices since their physical properties including electric transport and field emission have been found very promising as compared to other well-developed 1D nanomaterials. In this article, we review the current progress that has been made on 1D boron nanostructures in terms of theoretical prediction, syntheti...

متن کامل

Electronic and structural properties of two mirrored boron-nitride nanocones with 240o disclination

We studied, through first-principles calculations based on the density functional theory, the charge distribution, the density of states and the tip rearrangement of two mirrored boron nitride nanocones with 240Å disclination angles and separated from each other from 2Å, 3Å and 10Å under the influence of an external electric field ranging from 0.5 V/Å to 1.1 V/Å applied along the axis. Changes ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Nanotechnology

دوره 21 32  شماره 

صفحات  -

تاریخ انتشار 2010