已为您找到该学者10条结果 成果回收站
【期刊论文】Synthesis and Optical Properties of Gallium Phosphide Nanotubes
胡征, Qiang Wu, Zheng Hu, *, Chun Liu, Xizhang Wang, and Yi Chen, Yinong Lu
19720 J. Phys. Chem. B, Vol. 109, No.42, 2005,-0001,():
-1年11月30日
Gallium phosphide nanotubes with zinc blende structure were synthesized for the first time. The as-prepared GaP nanotubes are polycrystalline with diameters of 30-120nm and occasionally partially filled. The growth has been reasonably proposed to follow vapor-liquid-solid (VLS) mechanism. The integration of the nanotubular structure with the unique intrinsic semiconducting properties of GaP might bring GaP nanotubes some novel optical and electronic properties and applications.
-
76浏览
-
0点赞
-
0收藏
-
0分享
-
345下载
-
0
-
引用
【期刊论文】Synthesis of boron nitride nanowires
胡征, K.F. Huo, Z. Hu, a), F. Chen, J.J. Fu, and Y. Chen B.H. Liu and J. Ding Z.L. Dong and T. White
Appl. Phys. Lett., Vol. 80, No.19, 13 May 2002,-0001,():
-1年11月30日
A chemical method has been developed for synthesizing boron nitride nanowires through the reaction of a mixture gas of nitrogen (N2) and ammonia (NH3) over nanoscale a-FeB particles at 1100℃. Boron content in the product comes from the a-FeB catalyst itself. Transmission electron microscopic image indicates an abundant quantity of BN nanowires with diameter about 20nm and length up to several tens of microns. The product has also been characterized by high-resolution electron microscopy and electron energy loss spectrometer. The perfectly straight lattice fringes with an interlayer spacing of about 0.333nm corresponding to d0002 spacing of h-BN indicate that the BN nanowires are well crystallized. Also, a growth mechanism has been speculated.
-
65浏览
-
0点赞
-
0收藏
-
0分享
-
241下载
-
0
-
引用
【期刊论文】Vapor-Solid Growth and Characterization of Aluminum Nitride Nanocones
胡征, Chun Liu, †, Zheng Hu, *, Qiang Wu, Xizhang Wang, Yi Chen, Hai Sang, ‡, Jianmin Zhu, Shaozhi Deng, § and Ningsheng Xu§
J. AM. CHEM. SOC. 9 VOL. 127, NO.4, 2005 1319,-0001,():
-1年11月30日
Aluminum nitride nanostructures are attractive for many promising applications in semiconductor nanotechnology. Herein we report on vapor-solid growth of quasi-aligned aluminum nitride nanocones on catalyst-coated wafers via the reactions between AlCl3 vapor and NH3 gas under moderate temperatures around 700℃, and the growth mechanism is briefly discussed. The as-prepared wurtzite aluminum nitride nanocones grow preferentially along the c-axis with adjustable dimensions of the sharp tips in the range of 20-60nm. The photoluminescence spectrum reveals a broad blue emission band with a fine photon structure while the field emission study shows a notable emission current with a moderate turn-on field as expected, suggesting their potential applications in light and electron emission nanodevices.
-
74浏览
-
0点赞
-
0收藏
-
0分享
-
149下载
-
0
-
引用
【期刊论文】Boron Nitride Nanocages Synthesized by a Moderate Thermochemical Approach**
胡征, Yi Pan, Kaifu Huo, Yemin Hu, Jijiang Fu, Yinong Lu, Zhendong Dai, Zheng Hu, * and Yi Chen
small 2005, 1, No.12, 1199-1203,-0001,():
-1年11月30日
boron
-
80浏览
-
0点赞
-
0收藏
-
0分享
-
143下载
-
0
-
引用
胡征, K.F. Huo, Z. Hu, *, J.J. Fu, H. Xu, X.Z. Wang, and Y. Chen Y.N. Lu
J. Phys. Chem. B, Vol. 107, No.41, 2003 11317,-0001,():
-1年11月30日
Periodic spindle-unit boron nitride (BN) nanotubes with buglelike open-end tips have been found in the product by nitriding Fe-B nanoparticles at 1100℃ with a mixture of nitrogen and ammonia gas. The microstructure was well-characterized by high-resolution transmission electron microscopy (HRTEM) and energy-dispersive X-ray spectroscopy (EDX). The diameter of this BN nanotube shows a decreasing tendency along the growth direction. For each spindle unit, the outer diameter decreases steeply and then increases gradually, accompanied by thinning of the wall thickness along the growth direction. Some spindle units are partially occupied by the iron-containing catalyst particles at the hemispherical-like ends. An improved stress-induced sequential growth model has been reasonably deduced accordingly, with which the formation process of this novel BN nanostructure could be well understood.
-
90浏览
-
0点赞
-
0收藏
-
0分享
-
138下载
-
0
-
引用