Abstract：Silicon nanowires were obtained via oxide-assisted method, which was operated in a high temperature furnace at 1250℃ under 1000Pa for 5h using Ar as carrier gas. The silicon nanowires were etched with 5% HF aqueous solution for 5 min, and reacted with 1×10-3 mol·L-1 AuCl3 solution, and Au-modified silicon nanowires were obtained. The crystal structure of the products was characterized with XRD, and both of the patterns of Si and Au were observed. The morphology checked with SEM and TEM indicated large scale uniform silicon nanowires and Au particles on the surface of silicon nanowires. The average diameter of Au nanoparticls was 8 nm. The energy band structures obtained with XPS showed that gold nanoparticles are in negative charge and exist both at donor and acceptor levels. The Fermi level moved towards the top of valence band due to oxygen.
傅中,付妍,胡慧,邵名望*,潘世炎. X射线光电子能谱法研究硅纳米线的能带结构[J]. 光谱学与光谱分析, 2007, 27(09): 1878-1881.
FU Zhong, FU Yan, HU Hui, SHAO Ming-wang*, PAN Shi-yan. The Study on Energy Band Structure of Silicon Nanowires with XPS. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(09): 1878-1881.
[1] Ma D D D, Lee C S, Au F C K, et al. Science, 2003, 299: 1874. [2] Shao M W, Hu H, Li M, et al. Chem. Commun., 2007, 8: 793. [3] Yu D P, Bai Z G, Wang J J, et al. Phys. Rev. B, 1999, 59: R2498. [4] Cui Y, Lieber C M. Science, 2001, 291: 851. [5] Shao M W, Yao H, Zhang M L, et al. Appl. Phys. Lett., 2005, 87: 183106. [6] Shao M W, Shan Y Y, Wong N B, et al. Adv. Funct. Mater., 2005, 15: 1478. [7] Zhou X T, Hu J Q, Li C P, et al. Chem. Phys. Lett., 2003, 369: 320. [8] Hu H, Shao M W, Zhang W, et al. J. Phys. Chem. C, 2007, 111: 3467. [9] Morales A M, Lieber C M. Science, 1998, 279: 208. [10] Yu D P, Bai Z G, Ding Y, et al. Appl. Phys. Lett., 1998, 72: 3458. [11] Kamins T I, Stanley W R, Chang Y L. Appl. Phys. Lett., 2000, 76: 562. [12] Zhang R Q, Lifshitz Y, Lee S T. Adv. Mater., 2003, 15: 635. [13] Lee S T, Zhang Y F, Wang N, et al. J. Mater. Res., 1999, 14: 4503. [14] YE Yin, SHAO Ming-wang, WU Zheng-cui, et al(叶 寅，邵名望，吴正翠，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005, 25(4)：553. [15] WU Xiao-li, YUE Tao, LU Rong-rong, et al(吴小利，岳 涛， 陆荣荣， 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005, 25(10)：1595. [16] Chastain J. Handbook of X-ray Photoelectron Spectroscopy. Eden Prairie, MN: Perkin-Elmer Corp., 1992. [17] HUANG Kun, HAN Ru-qi(黄昆原著，韩汝琦改编). Physics of Solid(固体物理学). Beijing: Higher Education Press(北京: 高等教育出版社)，1988. 337.
