THRESHOLD PHOTODETACHMENT OF COLD C60-

被引：312

作者：

WANG, LS ^{[1
]}

CONCEICAO, J ^{[1
]}

JIN, CM ^{[1
]}

SMALLEY, RE ^{[1
]}

机构：

[1] RICE UNIV,DEPT CHEM & PHYS,HOUSTON,TX 77251

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 182卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(91)80094-E

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：

Threshold photodetachment of cold C60- has been investigated with a tunable dye laser from 2.55 to 2.80eV. The cold C60- was produced through laser vaporization of a purified C60 target with a specially designed nozzle. The threshold behavior of the detachment cross section as a function of energy was found to be well described by Wigner's threshold law plus a dominating polarization term. The electron affinity of C60 was measured to be 2.650 +/- 0.050 eV. Two unique effects, which are characteristic of bulk materials, were observed in this nano-sized molecule, i.e. the thermionic emission and the inelastic electron-"phonon" scattering effects, with the former strongly dependent on the laser fluences and the later on both the internal temperature of C60-and the photoelectron kinetic energy.

引用

页码：5 / 11

页数：7

共 20 条

[1] MAGNETIC TIME-OF-FLIGHT PHOTOELECTRON SPECTROMETER FOR MASS-SELECTED NEGATIVE CLUSTER IONS
CHESHNOVSKY, O
YANG, SH
PETTIETTE, CL
CRAYCRAFT, MJ
SMALLEY, RE
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1987, 58 (11) : 2131 - 2137
[2] ULTRAVIOLET PHOTOELECTRON-SPECTRA OF MASS-SELECTED COPPER CLUSTERS - EVOLUTION OF THE 3D BAND
CHESHNOVSKY, O
TAYLOR, KJ
CONCEICAO, J
SMALLEY, RE
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (15) : 1785 - 1788
[3] PROBING C-60
CURL, RF
SMALLEY, RE
[J]. SCIENCE, 1988, 242 (4881) : 1017 - 1022
[4] ELECTRIC AND MAGNETIC-PROPERTIES OF THE AROMATIC 60-CARBON CAGE
FOWLER, PW
LAZZERETTI, P
ZANASI, R
[J]. CHEMICAL PHYSICS LETTERS, 1990, 165 (01) : 79 - 86
[5] QUANTUM SIZE EFFECTS IN METAL PARTICLES
HALPERIN, WP
[J]. REVIEWS OF MODERN PHYSICS, 1986, 58 (03) : 533 - 606
[6] FULLERENE TRIPLET-STATE PRODUCTION AND DECAY - R2PI PROBES OF C60 AND C70 IN A SUPERSONIC BEAM
HAUFLER, RE
WANG, LS
CHIBANTE, LPF
JIN, CM
CONCEICAO, J
CHAI, Y
SMALLEY, RE
[J]. CHEMICAL PHYSICS LETTERS, 1991, 179 (5-6) : 449 - 454
[7] HAUFLER RE, 1991, IN PRESS MATER RES S, P206
[8] Kittel C., 1986, INTRO SOLID STATE PH, P536
[9] SOLID C-60 - A NEW FORM OF CARBON
KRATSCHMER, W
LAMB, LD
FOSTIROPOULOS, K
HUFFMAN, DR
[J]. NATURE, 1990, 347 (6291) : 354 - 358
[10] LEISNER T, IN PRESS Z PHYSIK D

← 1 2 →