Synthesis of ultraviolet luminescent turbostratic boron nitride powders via a novel low-temperature, low-cost, and high-yield chemical route

Journal Article · Wed Jun 15 00:00:00 EDT 2005 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2005.03.042· OSTI ID:20725979

Qixun, Guo ^[1]; Yi, Xie ^[2]; Chengqi, Yi ^[3]; Lei, Zhu ^[3]; Peng, Gao ^[3]

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1. School of Chemical and Materials Engineering, Southern YangTze University, Wuxi, Jiangsu 214036 (China)
2. School of Chemical and Materials Engineering, Southern YangTze University, Wuxi, Jiangsu 214036 (China) and Nanomaterials and Nanochemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China)
3. Nanomaterials and Nanochemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China)

A novel chemical route has been established for the synthesis of ultraviolet luminescent turbostratic boron nitride (t-BN) powders, by the reaction of NH{sub 4}BF{sub 4} with NaNH{sub 2} at 320 deg. C for 10h, and the yield is as high as 90%. The synthesized brown-yellow samples were characterized by XRD, XPS, FT-IR, SAED, and HRTEM, which matched with t-BN. The electronic and optical properties of the product were investigated by PL and UV absorption. UV spectra revealed that the product has two obvious band gaps ({approx}5.8 and 4.6eV) and PL spectra showed that it has an ultraviolet emission at 337nm({lambda}{sub ex}=260nm). SEM image indicated that the particle size of the synthesized t-BN is mainly in the range of 1-10{mu}m. The renascent BF{sub 3} and Na{sub 3}N intermediates are believed to be responsible for the growth of t-BN under mild conditions.

• OSTI ID: 20725979
• Journal Information: Journal of Solid State Chemistry, Vol. 178, Issue 6; Other Information: DOI: 10.1016/j.jssc.2005.03.042; PII: S0022-4596(05)00135-0; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ABSORPTION SPECTRA
BORON FLUORIDES
BORON NITRIDES
ELECTRON DIFFRACTION
FOURIER TRANSFORMATION
INFRARED SPECTRA
OPTICAL PROPERTIES
PARTICLE SIZE
PHOTOLUMINESCENCE
SCANNING ELECTRON MICROSCOPY
SYNTHESIS
TRANSMISSION ELECTRON MICROSCOPY
ULTRAVIOLET RADIATION
ULTRAVIOLET SPECTRA
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY