Abstract
The collision of a size-selected silicon cluster anion, Si- N (8 ≤ N ≤ 12), with a silicon surface was investigated by using a tandem time-of-flight mass spectrometer equipped with an ultrahigh-vacuum collision chamber. The size-selected parent cluster anion, Si- N, was fragmented dominantly into Si- n (n ≈ N/2) in the collision energy range of several electron volts per atom. The measured recoil velocity of the fragment anion from the surface revealed that about 40% of the collision energy is directly converted to the translational kinetic energies of the anion and its counter neutral product scattered from the surface. This conversion efficiency was much higher than that observed for Al- N, aluminum cluster anions, reported previously. This marked contrast indicates that Al- N interacts for a longer time with the surface and transmits its collision energy more efficiently to the surface than Si- N.
| Original language | English |
|---|---|
| Pages (from-to) | 269-273 |
| Number of pages | 5 |
| Journal | Chemical Physics Letters |
| Volume | 262 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - Nov 15 1996 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
Cite this
Fragmentation dynamics of silicon cluster anions in collision with a silicon surface : Contrast to aluminum cluster anions. / Terasaki, Akira; Yamaguchi, Hitoshi; Yasumatsu, Hisato; Kondow, Tamotsu.
In: Chemical Physics Letters, Vol. 262, No. 3-4, 15.11.1996, p. 269-273.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Fragmentation dynamics of silicon cluster anions in collision with a silicon surface
T2 - Contrast to aluminum cluster anions
AU - Terasaki, Akira
AU - Yamaguchi, Hitoshi
AU - Yasumatsu, Hisato
AU - Kondow, Tamotsu
PY - 1996/11/15
Y1 - 1996/11/15
N2 - The collision of a size-selected silicon cluster anion, Si- N (8 ≤ N ≤ 12), with a silicon surface was investigated by using a tandem time-of-flight mass spectrometer equipped with an ultrahigh-vacuum collision chamber. The size-selected parent cluster anion, Si- N, was fragmented dominantly into Si- n (n ≈ N/2) in the collision energy range of several electron volts per atom. The measured recoil velocity of the fragment anion from the surface revealed that about 40% of the collision energy is directly converted to the translational kinetic energies of the anion and its counter neutral product scattered from the surface. This conversion efficiency was much higher than that observed for Al- N, aluminum cluster anions, reported previously. This marked contrast indicates that Al- N interacts for a longer time with the surface and transmits its collision energy more efficiently to the surface than Si- N.
AB - The collision of a size-selected silicon cluster anion, Si- N (8 ≤ N ≤ 12), with a silicon surface was investigated by using a tandem time-of-flight mass spectrometer equipped with an ultrahigh-vacuum collision chamber. The size-selected parent cluster anion, Si- N, was fragmented dominantly into Si- n (n ≈ N/2) in the collision energy range of several electron volts per atom. The measured recoil velocity of the fragment anion from the surface revealed that about 40% of the collision energy is directly converted to the translational kinetic energies of the anion and its counter neutral product scattered from the surface. This conversion efficiency was much higher than that observed for Al- N, aluminum cluster anions, reported previously. This marked contrast indicates that Al- N interacts for a longer time with the surface and transmits its collision energy more efficiently to the surface than Si- N.
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U2 - 10.1016/0009-2614(96)01068-8
DO - 10.1016/0009-2614(96)01068-8
M3 - Article
VL - 262
SP - 269
EP - 273
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 3-4
ER -