ULTRAVIOLET PHOTOELECTRON-SPECTRA OF GALLIUM-ARSENIDE CLUSTERS

被引：83
作者：
JIN, C
TAYLOR, KJ
CONCEICAO, J
SMALLEY, RE
机构：
[1] RICE UNIV,RICE QUANTUM INST,HOUSTON,TX 77251
[2] RICE UNIV,DEPT CHEM,HOUSTON,TX 77251
[3] RICE UNIV,DEPT PHYS,HOUSTON,TX 77251
来源：
CHEMICAL PHYSICS LETTERS | 1990年 / 175卷 / 1-2期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0009-2614(90)85511-A
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：
The ultraviolet photoelectron spectra (UPS) of mass-selected negative gallium arsenide cluster ions in the (2-50) atom size range was measured with a photon energy of 7.9 eV. The measured photodetachment thresholds displayed a strong even/odd oscillation through the largest clusters in this range, suggesting the presence of a substantial HOMO-LUMO gap in the corresponding neutral clusters which evolves to the band gap of bulk GaAs crystals. © 1990.
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页码：17 / 22
页数：6
相关论文
共 23 条
[1]   SPECTROSCOPIC CONSTANTS AND POTENTIAL-ENERGY CURVES OF GAAS, GAAS+, AND GAAS- [J].
BALASUBRAMANIAN, K .
JOURNAL OF MOLECULAR SPECTROSCOPY, 1990, 139 (02) :405-423
[2]   ELECTRONIC STATES OF GAAS AND GAAS+ [J].
BALASUBRAMANIAN, K .
JOURNAL OF CHEMICAL PHYSICS, 1987, 86 (06) :3410-3413
[3]  
BLAKEMORE JS, 1987, GALLIUM ARSENIDE, P3
[4]   MAGNETIC TIME-OF-FLIGHT PHOTOELECTRON SPECTROMETER FOR MASS-SELECTED NEGATIVE CLUSTER IONS [J].
CHESHNOVSKY, O ;
YANG, SH ;
PETTIETTE, CL ;
CRAYCRAFT, MJ ;
SMALLEY, RE .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1987, 58 (11) :2131-2137
[5]   ULTRAVIOLET PHOTOELECTRON-SPECTRA OF MASS-SELECTED COPPER CLUSTERS - EVOLUTION OF THE 3D BAND [J].
CHESHNOVSKY, O ;
TAYLOR, KJ ;
CONCEICAO, J ;
SMALLEY, RE .
PHYSICAL REVIEW LETTERS, 1990, 64 (15) :1785-1788
[6]   A TIME-OF-FLIGHT MASS-SPECTROMETER FOR LARGE MOLECULAR CLUSTERS PRODUCED IN SUPERSONIC EXPANSIONS [J].
CONOVER, CWS ;
TWU, YJ ;
YANG, YA ;
BLOOMFIELD, LA .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1989, 60 (06) :1065-1070
[7]   ATOM-SELECTIVE IMAGING OF THE GAAS(110) SURFACE [J].
FEENSTRA, RM ;
STROSCIO, JA ;
TERSOFF, J ;
FEIN, AP .
PHYSICAL REVIEW LETTERS, 1987, 58 (12) :1192-1195
[8]  
GENTRY WR, 1988, ATOMIC MOL BEAM METH, V1, P64
[9]  
HOTOP H, 1979, J CHEM PHYS, V58, P2379
[10]   SODIUM CLUSTER IONIZATION-POTENTIALS REVISITED - HIGHER-RESOLUTION MEASUREMENTS FOR NAX (X-LESS-THAN-23) AND THEIR RELATION TO BONDING MODELS [J].
KAPPES, MM ;
SCHAR, M ;
ROTHLISBERGER, U ;
YERETZIAN, C ;
SCHUMACHER, E .
CHEMICAL PHYSICS LETTERS, 1988, 143 (03) :251-258
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