Abstract
Photoelectron spectra are presented for C60 excited with fs pulses of wavelengths 532 and 267 nm. The spectra indicate a quick redistribution of the excitation energy. Excitation of SAMO states is observed with 532 nm excitation, but due to the relatively large photon energy of the 267 nm pulses, these orbitals are not populated for this wavelength.
Highlights
Fullerenes are often used as model systems for studying and attempting to understand the dynamical behaviour of relatively large organic molecules and nanoparticles
Excitation of superatom molecular orbitals (SAMOs) states is observed with 532 nm excitation, but due to the relatively large photon energy of the 267 nm pulses, these orbitals are not populated for this wavelength
We have recently shown that it is possible to study the so-called superatom molecular orbitals (SAMOs) of gas-phase fullerenes, using a combination of fs laser ionisation and angular-resolved photoelectron spectroscopy [1]
Summary
Fullerenes are often used as model systems for studying and attempting to understand the dynamical behaviour of relatively large organic molecules and nanoparticles. We have recently shown that it is possible to study the so-called superatom molecular orbitals (SAMOs) of gas-phase fullerenes, using a combination of fs laser ionisation and angular-resolved photoelectron spectroscopy [1]. The SAMOs are diffuse, hydrogen-like molecular orbitals that form nearly-free electron bands in solids, and are of practical interest [2]. In this contribution, we present photoelectron spectra (PES) of fullerenes obtained using ultraviolet and visible laser pulses of ca. We present photoelectron spectra (PES) of fullerenes obtained using ultraviolet and visible laser pulses of ca. 100 fs duration
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