Penning Ionization of Acene Molecules by Helium Nanodroplets.
Penning Ionization of Acene Molecules by Helium Nanodroplets.
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氦纳米液滴对并苯分子的潘宁电离
DOI:
10.1021/acs.jpca.7b12506
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
M. Shcherbinin
中科院分区:
文献类型:
--
作者:
M. Shcherbinin
Acene molecules (anthracene, tetracene, pentacene) and fullerene (C) are embedded in He nanodroplets (He) and probed by EUV synchrotron radiation. When resonantly exciting the He nanodroplets, the embedded molecules M are efficiently ionized by the Penning reaction. However, the Penning electron spectra are broad and structureless -- showing no resemblance neither with those measured by binary Penning collisions, nor with those measured for dopants bound to the He droplet surface. The similarity of all four spectra indicates that electron spectra of embedded species are substantially altered by electron-He scattering. Simulations based on elastic binary electron-He collisions qualitatively reproduce the measured spectra, but require the assumption of unexpectedly large He droplets.
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影响因子:
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