First principles study of neutral and anionic (medium-size) aluminum nitride clusters:: AlnNn, n=7-16

被引:37
作者
Costales, A [1 ]
Blanco, MA
Francisco, E
Pendás, AM
Pandey, R
机构
[1] Univ Oviedo, Fac Quim, Dept Quim Fis & Analit, E-33006 Oviedo, Spain
[2] Michigan Technol Univ, Dept Phys, Houghton, MI 49931 USA
关键词
D O I
10.1021/jp056569+
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We report the results of a theoretical study of AlnNn (n = 7-16) clusters that is based on density functional theory. We will focus on the evolution of structural and electronic properties with the cluster size in the stoichiometric AlN clusters considered. The results reveal that the structural and electronic properties tend to evolve toward their respective bulk limits. The rate of evolution is, however, slow due to the hollow globular shape exhibited by the clusters, which introduces large surface effects that dominate the properties studied. We will also discuss the changes induced upon addition of an extra electron to the respective neutral clusters.
引用
收藏
页码:4092 / 4098
页数:7
相关论文
共 33 条
[21]   First principles prediction of the gas-phase precursors for AlN sublimation growth [J].
Li, YX ;
Brenner, DW .
PHYSICAL REVIEW LETTERS, 2004, 92 (07)
[22]   Thermodynamic study of the gaseous molecules Al2N, AlN, and Al2N2 by Knudsen cell mass spectrometry [J].
Meloni, G ;
Gingerich, KA .
JOURNAL OF CHEMICAL PHYSICS, 2000, 113 (24) :10978-10982
[23]  
Nakamura S, 1996, BLUE LASER AND LIGHT EMITTING DIODES, P119
[24]   APPLICATION OF WIDE-GAP SEMICONDUCTORS TO SURFACE-IONIZATION - WORK-FUNCTIONS OF AIN AND SIC SINGLE-CRYSTALS [J].
PELLETIER, J ;
GERVAIS, D ;
POMOT, C .
JOURNAL OF APPLIED PHYSICS, 1984, 55 (04) :994-1002
[25]   ACCURATE AND SIMPLE ANALYTIC REPRESENTATION OF THE ELECTRON-GAS CORRELATION-ENERGY [J].
PERDEW, JP ;
WANG, Y .
PHYSICAL REVIEW B, 1992, 45 (23) :13244-13249
[26]   Atomic and molecular electron affinities: Photoelectron experiments and theoretical computations [J].
Rienstra-Kiracofe, JC ;
Tschumper, GS ;
Schaefer, HF ;
Nandi, S ;
Ellison, GB .
CHEMICAL REVIEWS, 2002, 102 (01) :231-282
[27]  
Saunders V.R., 1998, CRYSTAL98 User's Manual
[28]   Thin films of aluminum nitride and aluminum gallium nitride for cold cathode applications [J].
Sowers, AT ;
Christman, JA ;
Bremser, MD ;
Ward, BL ;
Davis, RF ;
Nemanich, RJ .
APPLIED PHYSICS LETTERS, 1997, 71 (16) :2289-2291
[29]   Structures and stability of Al7C and Al7N clusters [J].
Sun, Q ;
Wang, Q ;
Gong, XG ;
Kumar, V ;
Kawazoe, Y .
EUROPEAN PHYSICAL JOURNAL D, 2002, 18 (01) :77-81
[30]   Evolution of electronic structure as a function of size in gallium phosphide semiconductor clusters [J].
Taylor, TR ;
Asmis, KR ;
Xu, CS ;
Neumark, DM .
CHEMICAL PHYSICS LETTERS, 1998, 297 (1-2) :133-140