中国物理B ›› 2008, Vol. 17 ›› Issue (10): 3827-3835.doi: 10.1088/1674-1056/17/10/048

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Formation and photoluminescence properties of boron nanocones

王兴军1, 田继发1, 鲍丽宏1, 杨天中1, 惠 超1, 申承民1, 高鸿钧1, 刘 飞2, 许宁生2   

  1. (1)Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; (2)State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, China
  • 收稿日期:2008-02-22 修回日期:2008-04-11 出版日期:2008-10-20 发布日期:2008-10-20
  • 基金资助:
    Project supported in part by the National 863 (Grant No 2007AA03Z305) and 973 (Grant No 2007CB935503) Projects, the National Science Foundation of China (Grant Nos U0734003 and 60571045), and China Postdoctoral Science Foundation.

Formation and photoluminescence properties of boron nanocones

Wang Xing-Jun(王兴军)a), Tian Ji-Fa(田继发)a), Bao Li-Hong(鲍丽宏)a), Yang Tian-Zhong(杨天中)a), Hui Chao(惠超)a), Liu Fei(刘飞)b), Shen Cheng-Min(申承民)a), Xu Ning-Sheng(许宁生)b), and Gao Hong-Jun(高鸿钧)a)†   

  1. a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; b State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, China
  • Received:2008-02-22 Revised:2008-04-11 Online:2008-10-20 Published:2008-10-20
  • Supported by:
    Project supported in part by the National 863 (Grant No 2007AA03Z305) and 973 (Grant No 2007CB935503) Projects, the National Science Foundation of China (Grant Nos U0734003 and 60571045), and China Postdoctoral Science Foundation.

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摘要： This paper reports that a simple chemical vapour deposition method has been adopted to fabricate large scale, high density boron nanocones with thermal evaporation of B/B$_{2}$O$_{3}$ powders precursors in an Ar/H$_{2}$ gas mixture at the synthesis temperature of 1000--1200$^{\circ}$C. The lengths of boron nanocones are several micrometres, and the diameters of nanocone tops are in a range of 50--100\,nm. transmission electron microscopy and selected area electron diffraction indicate that the nanocones are single crystalline $\alpha $-tetragonal boron. The vapour--liquid--solid mechanism is the main formation mechanism of boron nanocones. One broad photoluminescence emission peak at the central wavelength of about 650 nm is observed under the 532 nm light excitation. Boron nanocones with good photoluminescence properties are promising candidates for applications in optical emitting devices.

关键词: boron nanocones, chemical vapour deposition, photoluminescence

Abstract: This paper reports that a simple chemical vapour deposition method has been adopted to fabricate large scale, high density boron nanocones with thermal evaporation of B/B$_{2}$O$_{3}$ powders precursors in an Ar/H$_{2}$ gas mixture at the synthesis temperature of 1000--1200$^{\circ}$C. The lengths of boron nanocones are several micrometres, and the diameters of nanocone tops are in a range of 50--100 nm. transmission electron microscopy and selected area electron diffraction indicate that the nanocones are single crystalline $\alpha $-tetragonal boron. The vapour--liquid--solid mechanism is the main formation mechanism of boron nanocones. One broad photoluminescence emission peak at the central wavelength of about 650 nm is observed under the 532 nm light excitation. Boron nanocones with good photoluminescence properties are promising candidates for applications in optical emitting devices.

Key words: boron nanocones, chemical vapour deposition, photoluminescence

中图分类号:  (Methods of micro- and nanofabrication and processing)

  • 81.16.-c
81.15.Gh (Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, ALD, etc.)) 61.46.Hk (Nanocrystals) 78.67.Bf (Nanocrystals, nanoparticles, and nanoclusters) 78.55.Hx (Other solid inorganic materials) 81.07.Bc (Nanocrystalline materials)